http://www.slis.indiana.edu/media/ This RSS feed provides access to the most recent media files made available under a Creative Commons license by the School of Library and Information Science at Indiana University, Bloomington. en-us Creative Commons, please see below School of Library and Information Science; Indiana University School of Library and Information Science; Indiana University This RSS feed provides access to the most recent media files made available under a Creative Commons license by the School of Library and Information Science at Indiana University, Bloomington. School of Library and Information Science; Indiana University slisweb@indiana.edu no f http://www.slis.indiana.edu/media/net_sci_2009/ncs_11_09.mp3 Networks and Complex Systems Talk (audio): Capturing the flow of information between cities is a challenging task. Historically, flow analyses have focused on goods, capital and people, all of which can serve as proxies for estimating the volume of spatial interaction between places. However, with the advent of the Internet and its ability to both facilitate and accelerate the exchange of information, it is somewhat surprising that so few studies have examined the geographical characteristics of Internet flows. Aside from the initial challenges associated in acquiring network flow data, there are additional constraints inhibiting such efforts, including privacy concerns, the geographic rectification of flows and the ability to manage and visualize massive datasets. The purpose of this paper is to outline a basic methodology for capturing Internet flow data and to provide a brief empirical analysis of these data for the Internet2 network in the United States. Results suggest that asymmetries exist between ingress and egress connectivity and flows throughout the U.S. http://www.slis.indiana.edu/media/net_sci_2009/ncs_11_09.mp3 Mon, 16 Nov 2009 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/rkcsi_2009/rkcsi_10_02.pptx The Rob Kling Center for Social Informatics Speaker Series (slides): Online social networks (OSN) have attracted considerable interest from research and practice. Individuals use OSNs to establish and maintain relationships with friends, family, and close colleagues. While these relationships are typically personal in nature, the current study introduces commercial friendship between an OSN user and a firm representative as an approach to utilize OSN as part of a customer relationship strategy. A commercial friendship emerges when a firm representative is given access to the customer’s personal network. We build on relationship theory and friendship theory to examine factors that impact the willingness of OSN users to engage in relationships with firm representatives. Preliminary findings from an open-ended survey with 60 participants and interviews with 35OSN users suggest that a positive relationship outcome (i.e. relationship benefits outweigh relationship costs) and the level of perceived friendship impact the willingness-to-add decision. Theoretical contributions, practical implications, and the subsequent testing of the factors in an experiment are presented. http://www.slis.indiana.edu/media/rkcsi_2009/rkcsi_10_02.pptx Mon, 09 Nov 2009 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/rkcsi_2009/rkcsi_10_02.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): Online social networks (OSN) have attracted considerable interest from research and practice. Individuals use OSNs to establish and maintain relationships with friends, family, and close colleagues. While these relationships are typically personal in nature, the current study introduces commercial friendship between an OSN user and a firm representative as an approach to utilize OSN as part of a customer relationship strategy. A commercial friendship emerges when a firm representative is given access to the customer’s personal network. We build on relationship theory and friendship theory to examine factors that impact the willingness of OSN users to engage in relationships with firm representatives. Preliminary findings from an open-ended survey with 60 participants and interviews with 35OSN users suggest that a positive relationship outcome (i.e. relationship benefits outweigh relationship costs) and the level of perceived friendship impact the willingness-to-add decision. Theoretical contributions, practical implications, and the subsequent testing of the factors in an experiment are presented. http://www.slis.indiana.edu/media/rkcsi_2009/rkcsi_10_02.mp3 Mon, 09 Nov 2009 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/informatics2009/IC1016.mp3 Informatics Colloquia (video): Visualization has at least three purposes: 1) the inspection of raw data, 2) the assessment of assumptions underlying fitted models, 3) the presentation of fitted models. Automated visualization (AV) is an attempt to serve these purposes through intelligent automation of visualization and analytic methods. While AV might be designed to serve all three purposes equally well, its most suitable applications involve the early stages of a discovery process. AV, however sophisticated, should not replace the interactive process underlying the development and fitting of models themselves. It is best suited for discerning missing values, irregularities, anomalies, coding errors, and other effects that might bias the fitting of models or refinement of judgments based on data.

The Grammar of Graphics is the title of a book and a framework for developing intelligent visualizations of statistical and scientific data. Joint work with Graham Wills, Dan Rope, and others has led to the implementation of a scalable visualization library based on the book. And joint work with Anushka Anand and Robert Grossman at UIC has led to the development of a novel algorithm (originally proposed by John Tukey) for detecting patterns in high-dimensional datasets. These ideas will be illustrated on real data through several different interactive software applications. http://www.slis.indiana.edu/media/informatics2009/IC1016.mp3 Mon, 19 Oct 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_10_05.mp3 Networks and Complex Systems Talk (audio): Clinical and public health arenas face similar challenges when considering the development of regional information exchanges. Health care information is scattered across many independent databases and systems as separate data islands with different patient and provider identifiers, concept identifiers, and location identifiers. This is true for data collected within an institution and for data collected about the same patient at different health care institutions or public health organizations. These pervasive realities create layers of complexity in health care information aggregation efforts for both public health and clinical care uses. On the public health front, the Centers for Disease Control (CDC) promotes specifications to ensure consistent public health information networks can serve the nation's public health information needs. Because public health initiatives must cross all of the separate silos and other facets of healthcare, public health and clinical medicine have shared interests in reusable data exchange systems. Public health is in fact part of the comprehensive health care ecology both from a patient care perspective and from a health care IT perspective. Data generated in typical clinical workflow, such as immunization records and reportable laboratory results, are just two examples of information having dual use in both clinical medicine and public health. Similarly, routinely collected point of care emergency department encounter data can be of great value to public health syndromic surveillance efforts. This talk will describe existing medical informatics solutions that support public health practice in Indiana, including syndromic surveillance and automated notifiable disease reporting. http://www.slis.indiana.edu/media/net_sci_2009/ncs_10_05.mp3 Thu, 15 Oct 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_09_21.mp3 Networks and Complex Systems Talk (audio): Studies of social networks and governance arrangements focus on analyzing frequency, intensity, density, quality, and other parameters of relations among agents. Departing from these approaches, agent network analysis and governance studies in sustainability science explicitly integrate a normative perspective into the research agenda. Critical questions are: How should agent networks be formed in order to promote and support endeavors towards sustainability? What roles and responsibilities need to be fulfilled by the agents involved in sustainability governance activities? The talk presents an analytical-normative concept for agent network analysis in sustainability studies and illustrates its application in empirical studies from Europe and the U.S. http://www.slis.indiana.edu/media/net_sci_2009/ncs_09_21.mp3 Tue, 22 Sep 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_09_14.mp3 Networks and Complex Systems Talk (audio): We live in an increasingly interconnected world where infrastructures composed by different technological layers are interoperating with the social component that drives their use and development. Examples are provided by the Internet, the social Web, the new WiFi communication technologies and transportation and mobility infrastructures. The multi-scale nature and complexity of these networks are crucial features in the understanding of techno-social systems and the dynamical processes occurring on top of them. I will review the recent advances and challenge in this area and how we can look forward to new forecasting infrastructures in the context of techno-social systems. As a foremost example I will review the recent development and the major roadblocks in the computational approach to the prediction and control of emerging diseases. In particular I will discuss the global epidemic and mobility (GLEaM) computational platform and its use in the early stages of the recent H1N1 outbreak to provide real-time projections and scenarios on the unfolding of the epidemic. http://www.slis.indiana.edu/media/net_sci_2009/ncs_09_14.mp3 Wed, 16 Sep 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_05_26.mp3 Networks and Complex Systems Spring 2009 (audio): Tim Berners-Lee describes in Weaving the Web (1999), his future vision of the World Wide Web in two parts. In the first one, nowadays called Web 2.0, people collaborate and enrich data together in a shared information space. In the second part, exchanges extend to computers, resulting in a “Semantic Web” (Berners-Lee 1999). Most historical studies of World Wide Web begin with the American roots of the Internet in ARPANET or follow a historiographical line of post war information revolutionaries, from Vannevar Bush to Tim Berners-Lee. This paper follows an alternative line. At the end of the nineteenth and in the first decades of the twentieth century various European scholars, like Patrick Geddes, Paul Otlet, Otto Neurath, Wilhelm Ostwald explored the organisation, enrichment and dissemination of knowledge on a global level to come to a peaceful, universal society. We focus on Paul Otlet (1868-1944) who developed a knowledge infrastructure to update information mechanically and manually in collaboratories of scholars. First the Understanding Infrastructure (2007) report, that Paul N. Edwards et al. wrote on behalf of NSF, will be used to position Otlet’s knowledge organization in their sketched development from information systems to information networks or webs. Secondly, the relevance of Otlet’s knowledge infrastructure will be assessed for Web 2.0 and Semantic Web applications for research. The hypothesis will be put forward that the instruments and protocols envisioned by Otlet to enhance collaborative knowledge production, can still be relevant for current conceptualizations of “scientific authority” in data sharing and annotation in Web 2.0 applications and the modeling of the Semantic Web. http://www.slis.indiana.edu/media/net_sci_2009/ncs_05_26.mp3 Thu, 04 Jun 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_04_06.mp3 Networks and Complex Systems Spring 2009 (audio): An increasing fraction of human interactions are digitally captured. These digital breadcrumbs, combined with substantial computational power, create enormous opportunities for ground breaking science. This talk will discuss what some of the potential opportunities are for developing an improved understanding of collective human behavior, as well the potential barriers to the emergence of a "computational social science." In particular, the objective of this talk will be to spur discussion regarding how to bridge the gap between various methods for data mining and enhancing understanding of human behavior. http://www.slis.indiana.edu/media/net_sci_2009/ncs_04_06.mp3 Thu, 04 Jun 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_04_27.mp3 Networks and Complex Systems Spring 2009 (audio): Our current understanding of networks structure and evolution is largely based on the description of the dynamical processes that have shaped them. Alternative approaches based on principles of optimality have been proposed, but certainly are not mainstream. Although there are good reasons for that, I will discuss examples where such approaches are fruitful, focusing especially on the case of road networks. http://www.slis.indiana.edu/media/net_sci_2009/ncs_04_27.mp3 Mon, 04 May 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_04_13.mp3 Networks and Complex Systems Spring 2009 (video): From its very beginning, the potential of extracting valuable knowledge from the Web has been quite evident. Web mining - i.e. the application of data mining techniques to extract knowledge from Web content, structure, and usage - is the collection of technologies to fulfill this potential. Interest in Web mining has grown rapidly in its short existence, both in the research and practitioner communities. This talk provides an overview of the accomplishments of the field - both in terms of technologies and applications - and outlines key future research directions. http://www.slis.indiana.edu/media/net_sci_2009/ncs_04_13.mp3 Mon, 04 May 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_04_06.mp3 Networks and Complex Systems Spring 2009 (audio): The human brain is a complex network. My talk will be about emerging links between the connectivity structure of the brain and its functional dynamics, and about how we might construct a computational network model of the brain. We now know that structural brain networks exhibit a number of topological features, including small-world attributes, modularity, and hubs. How do these structural features relate to functional characteristics of brain networks, to their dynamic patterns, to their processing power, robustness, or capacity to support flexible behavior? I will review recent work on complex brain networks that aims to identify how brain networks are organized and how they process and integrate information. I will also outline how these efforts may inform the design of a comprehensive structural and dynamic model of the human brain. http://www.slis.indiana.edu/media/net_sci_2009/ncs_04_06.mp3 Thu, 04 Jun 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/kaser/kaser09_richardson.mov David Kaser Lecture Series (video): From Hand Printer to Ecological Informatician: Or, How I Discovered the Lost Ship of the Colorado Desert" — an autobiographical speculation on how the field has changed over my thirty plus year career with advice on focusing on the present, studying the past, and planning for the future..." He remembers Dr. Kaser's lectures with great fondness, and is pleased to be giving this year's talk. http://www.slis.indiana.edu/media/kaser/kaser09_richardson.mov Thu, 09 Apr 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/rkcsi_2009/rkcsi_03_27.mov The Rob Kling Center for Social Informatics Speaker Series (video): Controversy about unauthorized downloading or “piracy” of digital materials seems like a recent intellectual property phenomenon. But an earlier "downloading crisis" occurred in the 1980’s when users, newly equipped with personal computers began to download data from commercial databases like DIALOG and Chemical Abstracts. Database vendors feared that downloading of citations would undermine their revenues and they initially forbade downloading, employing the rhetoric of piracy and economic harm common in today’s intellectual property disputes. But, also similar to today, some users continued to download despite vendor protests. What led to a change in database vendors' attitudes toward downloading between 1980 and the mid-1990s? This talk focuses on change in use regimes associated with one type of digital intellectual property: scholarly bibliographical citations. Use Regimes are an analytical tool to analyze changes in who can access intellectual or cultural property and what they can do with it. Analyzing changes in past regimes helps us better understand contemporary debates about what counts as legitimate and illegitimate uses of intellectual and cultural property, the potential effects of access and use restrictions on knowledge and cultural production, and the circumstances important to facilitate change in access and use rules. http://www.slis.indiana.edu/media/rkcsi_2009/rkcsi_03_27.mov Thu, 09 Apr 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_03_23.mp3 Networks and Complex Systems Spring 2009 (audio): The presentation will discuss the various projects of the Cyberinfrastructure for Network Science Center, demonstrating recent developments in the Network Workbench tool, as well as describing some of our future work: the EpiC and SciPolicy cyberinfrastructure projects. Network Workbench helps network scientists process, analyze, and visualize network data. It is highly-extensible, allowing users to contribute their own algorithms to the tool, which are able to interact seemlessly with existing Network Workbench functionality. This flexibility is made possible by the CIShell cyberinfrastructure framework, which is the foundation of our upcoming cyberinfrastructure tools as well. New functionality in Network Workbench includes a collection of algorithms for handling weighted networks, and support for scientometrics analysis and processing. The upcoming EpiC (short for Epidemics Cyberinfrastructure) project aims to create a tool to aid in the modeling, analysis, and visualization of epidemics data. The EpiC project is also developing a community website to facilitate the sharing of datasets in the epidemics community. SciPolicy will expand the scientometrics functionality in Network Workbench into a separate full-fledged tool, making it easy for science policy makers to visualize and understand large sets of scientometrics data. http://www.slis.indiana.edu/media/net_sci_2009/ncs_03_23.mp3 Mon, 20 Apr 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_03_09.mp3 Networks and Complex Systems Spring 2009 (audio): Abstract:With advances in computing techniques, a large amount of high-resolution high-quality multimedia data (video and audio, etc.) has been collected in research laboratories in various scientific disciplines, particularly in cognitive and behavioral studies. How to automatically and effectively discover new knowledge from rich multimedia data poses a compelling challenge since most state-of-the-art data mining techniques can only search and extract pre-defined patterns or knowledge from complex heterogeneous data. In light of this challenge, we propose a hybrid approach that allows scientists to use data mining as a first pass, and then forms a closed loop of visual analysis of current results followed by more data mining work inspired by visualization, the results of which can be in turn visualized and lead to the next round of visual exploration and analysis. In this way, new insights and hypotheses gleaned from the raw data and the current level of analysis can contribute to further analysis. As a first step toward this goal, we implement a visualization system with three critical components: (1) A smooth interface between visualization and data mining; (2) A flexible tool to explore and query temporal data derived from raw multimedia data; and (3) A seamless interface between raw multimedia data and derived data. We have developed various ways to visualize both temporal correlations and statistics of multiple derived variables and as well as conditional and high-order statistics. Our visualization tool allows users to explore, compare, and analyze multi-stream derived variables and simultaneously switch to access raw multimedia data. http://www.slis.indiana.edu/media/net_sci_2009/ncs_03_09.mp3 Wed, 01 Apr 2009 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_03_02.mp3 Networks and Complex Systems Spring 2009 (audio): Understanding ecosystems is one of the most important challenges for theoretical biology and Artificial Life. We offer a bottom-up, fully individual-based model where phenotype-to-phenotype interactions of organisms define ecological networks and we study how simple conditions give rise to complex food webs if we allow for the evolution of phenotypes and hence phenotype interactions. A key element of the model is the notion of "rich phenotype" realized as a set of nonlinear tradeoffs in a multi-trait system. To approach this, we have chosen one of the best understood phenotypes, RNA structures, and assigned ecological functions to their features. In a series of experiments we show the emergence of complex food webs with generic properties, which indicates that minimalist assumptions such as having rich phenotype interactions might be sufficient to generate complex ecosytems and to explain some puzzling ecological features. http://www.slis.indiana.edu/media/net_sci_2009/ncs_03_02.mp3 Wed, 04 Mar 2009 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_02_23.mp3 Networks and Complex Systems Spring 2009 (audio): The field of mental health services research incorporates researchers and practitioners from the fields such as psychology, psychiatry, social work, health policy, and consumer advocacy. This diverse field saw a marked increase in the publication of recovery-oriented literature and the development of recovery-oriented clinical and organizational practices starting in the mid 1980s and continuing to the present. In services research, the meaning of recovery in severe mental illness (SMI) is contested, but refers broadly to the idea that the long-term prospects of people with SMI need not be dire and illness-defined. Instead, the concept of recovery suggests the care of SMI should be person- and future-oriented and should allow individuals to work toward personally meaningful goals. While this may not seem to outsiders as much of a challenge to service providers, in the 1980s and beyond, recovery became a rallying cry for those who sought to contest overly custodial and pessimistic providers and systems of care. The recovery "movement" in the research literature appears to be what Frickel and Gross termed a scientific/intellectual movement (2005). This study expands the network argument of the SIM framework and examines the evolution of the recovery research network through co-authorship and past and present academic, clinical, disciplinary and other professional affiliations. Multiple types of approaches, including centrality, evolutionary models, and p* models are used to explore this scientific movement. http://www.slis.indiana.edu/media/net_sci_2009/ncs_02_23.mp3 Wed, 04 Mar 2009 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/rkcsi_2009/rkcsi_2_20.mov The Rob Kling Center for Social Informatics Speaker Series (video): Digital divide initiatives in developing countries are an important avenue for socio-economic advancement of those countries. Yet, little research has focused on understanding success of such initiatives. The research project, which spans five years with data collected from multiple villages in rural India, seeks to understand the determinants of success of a digital divide initiative. The indicators of success that we examine are economic and health outcomes. Within this broader project, the paper that will be the focus of the presentation and discussion develops and tests a model of technology use and economic outcomes. We use social networks as the guiding theoretical lens as it is well-suited to such a context given the low literacy, high collectivism and an oral tradition of information dissemination in developing countries. We test our model with longitudinal data gathered from 210 families in one village. As theorized, we found that the social network constructs predicted technology use, with the variance explained being 41%. Also, as we predicted, technology use partially mediated the effect of social network constructs on economic outcomes, with the variance explained being 49%. We discuss implications for theory and practice. http://www.slis.indiana.edu/media/rkcsi_2009/rkcsi_2_20.mov Mon, 02 Mar 2009 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_02_02.mp3 Networks and Complex Systems Spring 2009 (audio): Understanding how organisms control their ionome or mineral nutrient and trace element composition, could have a significant impact on both plant and human health. Furthermore, associating the genetic determinants that underlie natural ionomics variation, with the landscape of the individuals that carry these genotypes, will provide insight into the genetic basis of adaptation and speciation. We have employed high-throughput mineral nutrient and trace element profiling, using inductively coupled plasma – mass spectrometry (ICP-MS), as a tool to determine the biological significance of connections between an organisms genome and its ionome. Our focus is on genes that control uptake and accumulation of mineral elements, including Ca, K, Mg, P (macronutrients in plant fertilizer), Co, Cu, Fe, Li, Mn, Mo, Ni, Se, Zn, (micronutrients of significance to plant and human health) and As, Cd, Na and Pb (elements causing agricultural or environmental problems). To date we have analyzed the ionome of over 100,000 Arabidopsis plants and 20,000 yeast samples. This includes several Arabidopsis forward genetic screens (Lahner et al., 2003 Nat. Biotechnol. 21:1215), a screen of 360 natural Arabidopsis accession, and a complete analysis of all 5153 strains of the yeast deletion collection (Danku et al., 2009 JAAS (in press)). We have successfully used PCR-based positional cloning, DNA microarray based approaches, QTL and association mapping to identify numerous genes that control the ionome (for example Rus et al., 2006 PLoS Genetics 2(12): e210; Baxter et al., 2008 PLoS Genetics 4(2):e1000004). Association of variation in these genes with the landscape in which these plants naturally grow is starting to reveal the genetic architecture underlying specific adaptations to the environment. We are also finding that specific ionomic “fingerprints” are associated with functionally related sets of genes, and also with the physiological status of the organism (Baxter et al., 2008 PNAS 105: 12081-12086). To maximize the value of this ionomics approach, we have developed a publicly searchable online database containing ionomic information on over 1000,000 samples from over 1500 different experiments (www.ionomicshub.org; Baxter et al., 2007 Plant Physiol 143: 600-611), and the database is being updated regularly. http://www.slis.indiana.edu/media/net_sci_2009/ncs_02_02.mp3 Mon, 09 Feb 2009 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2009/ncs_01_26.mp3 Networks and Complex Systems Spring 2009 (audio): This talk introduces Condor, a tool for dynamic semantic social network analysis, which has been developed for the last six years at the MIT Center for Collective Intelligence in collaboration with University of Cologne, Helsinki University of Technology and others. Condor includes a novel set of social network analysis based algorithms for mining the Web, blogs, and online forums to identify trends and find the people launching these new trends. Algorithms include the temporal computation of network centrality measures, the visualization of social networks as Cybermaps, a semantic process of mining and analyzing large amounts of text based on social network analysis, and sentiment analysis and information filtering methods. The temporal calculation of betweenness of concepts permits to extract and predict long-term trends on the popularity of relevant concepts such as brands, movies, and politicians. Among other examples, our approach will be illustrated by qualitatively comparing Web buzz and Web betweenness for the 2008 US presidential elections, as well as correlating the Web buzz index with share prices. See also: http://www.ickn.org. http://www.slis.indiana.edu/media/net_sci_2009/ncs_01_26.mp3 Mon, 02 Feb 2009 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_11_17.mp3 Networks and Complex Systems Fall 2008 (audio): Traditionally, information and opinions were filtered and amplified by two classes of trusted intermediaries: institutional media and our social networks of friends and family. The advent of social media is disrupting these mechanisms by fostering Web-mediated brokers such as blogs, wikis, folksonomies, and search engines, through which anyone can easily publish and promote content online. This "second age of information'' is driven more than ever before by the economy of attention. Popularity (the accumulation of attention) is its measure of success; popular sources have formidable power to impact opinions, culture, and policy, as well as profit through online advertising. Yet the dynamical processes that drive popularity in our online world are still unclear and largely unexplored. Here we provide for the first time a quantitative, large scale, longitudinal analysis of the dynamics of different popularity measures for online content. We analyze the evolution of two massive model systems, the Wikipedia and an entire country's Web space, finding that the temporal and magnitude behaviors of popularity follow statistical laws typical of critical avalanche processes, such as earthquakes and depinning phenomena. Such statistical features hold across measures, systems, and their histories. To make sense of these empirical results, we offer a model that mimicks with a simple random mechanism the exogenous shift of user attention and the ensuing non-linear perturbations in the popularity ranking of online resources. Remarkably this stylized model recovers the key features observed in the empirical analysis of the two model systems analyzed here. Joint work with Jacob Ratkiewicz, Santo Fortunato, Alessandro Flammini, and Alessandro Vespignani. http://www.slis.indiana.edu/media/net_sci_2008/ncs_11_17.mp3 Wed, 19 Nov 2008 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_11_03.mp3 Networks and Complex Systems Fall 2008 (audio): Prescription drug use has increased markedly over the past several decades, with nearly half of Americans over 65 taking at least five medications daily. As these numbers grow, physicians are faced with the increasingly complex task of recognizing and addressing any adverse reactions associated with these treatments. Although information on drug side-effects is readily available, its sheer volume can be daunting: The average drug label contains over 75 potential reactions, and there are many drugs that report well over two-hundred. In this talk, I will discuss the development of an electronic tool which synthesizes adverse reaction data and provides doctors with clinically useful visualizations at the point of care. We will cover many of the challenges in creating such a system, including integration of quantitative and qualitative data, evaluation and iteration of the visualization approach, and actual implementation into physician workflow. http://www.slis.indiana.edu/media/net_sci_2008/ncs_11_03.mp3 Wed, 19 Nov 2008 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_10_31.mov The Rob Kling Center for Social Informatics Speaker Series (video): e-Research, which is broadly defined to include distributed and collaborative ICT-enabled research practices across the physical and computational sciences, social sciences, and humanities is an active area of research and funding around the world. However, given the early stages of development of many e-Research projects, we know relatively little about their use and impact on actual research practices and outcomes. Lacking solid evidence, there is a general perception that the social science community in particular lacks a sufficient level of awareness of e-Research, and that this has contributed to a low take-up of advances in ICTs as tools for social research. This talk presents the results of several studies, including surveys and case studies, designed to understand research practices and awareness of e-Research, funding patterns and scholarly publication related to e-Research, and social issues arising from particular e-Research projects. Meyer concludes with a discussion about what social informatics (SI) offers for enhancing our understanding of e-Research. He will argue that employing a balanced view of the relationship between the social and the technical such as that offered by SI can help to understand broader patterns between technological configurations, human actors, resource flows, and the choices that are made about the design and implementation of e-Research technologies. http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_10_31.mov Thu, 13 Nov 2008 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_09_29.mp3 Networks and Complex Systems Fall 2008 (audio): The vision of the Semantic Web is to lift current Web into semantic repositories where heterogeneous data can be queried and different services can be mashed up. The Web becomes a platform for integrating data and services. Ontology or agreed consensus is the key issue to achieve that. Especially in cultural heritage area, cross-media and cross-archival retrieval turn out to be the slogan in this area. The EASAIER project (European Union funded) aims to enable enhanced access to sound archives by providing multiple methods of retrieval, integration with other media archives and content enrichment. During this talk, I will share with you the development of this project. http://www.slis.indiana.edu/media/net_sci_2008/ncs_09_29.mp3 Mon, 06 Oct 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/kaser/Kaser_1986_History_of_the_American_Library_Class.mp3 Special Release (1986 Recording) (audio): A History of the American Library class taped by John Kristelli. http://www.slis.indiana.edu/media/kaser/Kaser_1986_History_of_the_American_Library_Class.mp3 Thu, 15 May 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_04_18.mov The Rob Kling Center for Social Informatics Speaker Series (video): his lecture will start with the proposition that the act of searching for information while sitting at a desk is a special case of information seeking, and that 50 years of research on search could be marginalised by the coming of mobile information access. The aim of information seeking research should be to ‘bring the information to where the questions are’: axiomatically, the greatest proportion of questions arise when people are mobile and engaged in some activity. If this proposition is true, then information science should be focussed on situational search, as transferring current text retrieval services onto a mobile device does not produce sufficiently compelling results. This lecture will explore situational search and geographic relevance in the light of the continuing revolution in mobile device usage and explore the implications for information seeking with examples from current projects at City University, London and the new Journal of Location Based Services. http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_04_18.mov Thu, 15 May 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_04_11.mov The Rob Kling Center for Social Informatics Speaker Series (video): During the 130 years between 1860 and 1990 higher education was transformed, evolving from a limited province of the cultural elite to a great instrument of state material and martial strength. Higher education will experience equally profound transformations during the next 25 years, forced by changing global conditions and enabled by contemporary information and communication technologies. Such transformation has already occurred in many other sectors: higher education has lagged behind, but it is going to catch up. This talk explores the mechanics of enterprise transformation in higher education, and provides principles to guide higher education leaders in the coming decade. For those interested in Social Informatics, it provides a glimpse of social analysis of computing in action. http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_04_11.mov Wed, 14 May 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_04_17.mp3 Networks and Complex Systems Spring 2008 (audio): The famous cartographer Jacques Bertin wrote a classic book titled the "Semiology of Graphics" in 1967. In this book, he analyzed many different types of charts, network diagrams, and maps, and then developed a systematic description of how information is coded in these visual representations. His goal was to describe pictures in terms of the conventions used to depict the information, not in terms of low-level graphics primitives. In this talk I will review Bertin's ideas, and then describe several recent attempts to formally specify information graphics using computers. The formal approach leads to a language of pictures. We have used visual languages to build two major visualization systems, Polaris and Tableau. Formally describing pictures leads to new capabilities including easy integration with database query languages such as SQL, the ability to describe statistical linear models, and new methods for automatically creating graphical presentations best suited to the data. http://www.slis.indiana.edu/media/net_sci_2008/ncs_04_17.mp3 Tue, 22 Apr 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_04_14.mp3 Networks and Complex Systems Spring 2008 (audio): Cytoscape is an open-source, cross-platform network visualization and analysis application. Cytoscape has it's roots in Systems Biology and is therefore well suited for analyzing data from high-throughput experimentation as well as other molecular state information. The central organizing metaphor of Cytoscape is a network (graph), with genes, proteins, and molecules represented as nodes and interactions represented as edges between nodes. The Cytoscape application acts as an extensible framework by providing core functionality to handle common tasks and software interfaces that allow easy extension to support unique needs. The core functionality includes the visualization, layout, and manipulation of networks in addition to data handling services needed for importing, exporting, and managing network data. Cytoscape's raison d'etre is its ability to integrate data and map it onto visual attributes of the networks. This functionality allows for rich visualizations that can provide insight into otherwise complicated data. In addition to the core functionality we have an ever growing library of plugins that extend and enhance Cytoscape's abilities. Cytoscape is open source (free) and is a collaborative effort of the University of California San Diego, the Institute for Systems Biology, Memorial Sloan-Kettering Cancer Center, Agilent Technologies, Unilever, the Institut Pasteur, University of California San Francisco, and the University of Toronto. See http://cytoscape.org for downloads and more detail. http://www.slis.indiana.edu/media/net_sci_2008/ncs_04_14.mp3 Tue, 22 Apr 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/kaser/kaser08_crowe.mov David Kaser Lecture Series (video): This talk will include reflections on The Future of the Research Library, the 1963 Phineas Windsor lecture at the University of Illinois, Urbana-Champaign, delivered by Verner W. Clapp. The lecture was published by the U of I Press in 1964 and is held in more than 500 collections. http://www.slis.indiana.edu/media/kaser/kaser08_crowe.mov Thu, 17 Apr 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_03_28.mov The Rob Kling Center for Social Informatics Speaker Series (video): t is easy to forget that before the single player video game, most video games were for more than one player. In this work in progress talk, I will argue that many of the more successful multiplayer games, from Parcheesi to Rock Band to Animal Crossing acquire their power by piggybacking on existing social relations, thus acquiring many layers of meaning when played, as well as ambiguously threatening to rewrite these relations. By use of digital and non-digital examples, I will outline a theory of how games acquire meaning from the context in which they are played. http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_03_28.mov Wed, 09 Apr 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval t http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_03_21.mov The Rob Kling Center for Social Informatics Speaker Series (video): Conversational multitasking - the participation in several concomitant synchronous conversations - becomes an increasingly significant communication competence. It is typically exhibited in textual conversation contexts on-line, such as chat-rooms and instant-messaging environments, where users are engaged in several conversations at the same time, but it obviously comes to affect also face-to-face situations in the workplace and the classroom. In this talk I discuss some of the perceptual underpinnings of conversational multitasking, present the results of several experiments examining some perceptual aspects of this phenomenon, and consider some of its implications. In particular, I suggest it is an interesting locus for examining the interplay between cognitive capacities, social norms and technology. http://www.slis.indiana.edu/media/rkcsi_2008/rkcsi_03_21.mov Mon, 07 Apr 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_03_31.mp3 Networks and Complex Systems Spring 2008 (audio): The parallel growing interest in Agent-Based Modeling (ABM), on one hand, and Geographic Information Systems (GIS), on the other, calls for platforms that would integrate them both. Current GIS and ABMS software do not support each other in a seamless manner, and an integrated platform that would support both is needed. In this talk, I introduce Agent Analyst, an extension of ArcGIS, the popular GIS software, which supports ABM. Agent Analyst fully integrates ABM with GIS, and extends the functionalities of the open-source Repast modeling and simulation environment with the spatial capabilities of ArcGIS. Through this integration, GIS experts gain the ability to model behaviors and processes as change and movement over time (e.g., simulate land use and land cover changes, predator-prey interactions, or network flows and congestion) while ABM modelers are able to incorporate detailed real-world environmental data, perform complex spatial analyses, and study how behavior is constrained by space and geography. Furthermore, ABM models can include real-time GIS data feeds for situations such as disaster management, firefighting, or resource management . To illustrate these ideas, I present a few models developed in Agent Analyst. http://www.slis.indiana.edu/media/net_sci_2008/ncs_03_31.mp3 Fri, 04 Apr 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_03_24.mp3 Networks and Complex Systems Spring 2008 (audio): This study examines the differences between Scopus and Web of Science in the citation counting, citation ranking, and h-index of 22 top human-computer interaction (HCI) researchers from EQUATOR-a large British Interdisciplinary Research Collaboration project. Results indicate that Scopus provides significantly more coverage of HCI literature than Web of Science, primarily due to coverage of relevant ACM and IEEE peer-reviewed conference proceedings. No significant differences exist between the two databases if citations in journals only are compared. Although broader coverage of the literature does not significantly alter the relative citation ranking of individual researchers, Scopus helps distinguish between the researchers in a more nuanced fashion than Web of Science in both citation counting and h-index. Scopus also generates significantly different maps of citation networks of individual scholars than those generated by Web of Science. The study also presents a comparison of h- index scores based on Google Scholar with those based on the union of Scopus and Web of Science. The study concludes that Scopus can be used as a sole data source for citation-based research and evaluation in HCI, especially when citations in conference proceedings are sought, and that h scores should be manually calculated instead of relying on system calculations. http://www.slis.indiana.edu/media/net_sci_2008/ncs_03_24.mp3 Wed, 26 Mar 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_03_17.mp3 Networks and Complex Systems Spring 2008 (audio): Theories of mate choice have suggested that human mate selection may be driven by a variety of factors, ranging from finding similar quality partners to finding partners who share similar preferences. Within a more restricted mate search context, such as speed-dating, it may be that these factors do not come into play. In fact, it may be that speedy human mate choice is a largely random process, governed by the simple laws of probability. To find out, we analyzed over 100 speed-dating sessions to see whether the matches that are produced, when both a man and a woman indicate interest in each other, occur any more often than we would expect if choices were made at random. We also looked at whether the set of people that any given individual was interested in had anything in common with the interest-sets of other individuals, or whether the range of choices also appeared random at an individual level. We will discuss the outcome of these analyses and what they imply for human behavior in this domain. http://www.slis.indiana.edu/media/net_sci_2008/ncs_03_17.mp3 Thu, 20 Mar 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval f http://www.slis.indiana.edu/media/net_sci_2008/ncs_02_04.mp3 Networks and Complex Systems Spring 2008 (audio): The Network for Computational Nanotechnology (NCN) was established in 2002 by the NSF with a mission to create, deploy, and operate a national resource for theory, modeling, and simulation in nanotechnology, to connect users in research, education, design, and manufacturing. Nanotechnology is a broad field, so the NCN has focused its efforts on developing materials for a few focus areas: nanoelectronics, nanoelectromechanical systems, and nanomedicine. Users access these resources from the nanoHUB.org web site. In the 12-month period from October 2006 to September 2007, more than 26,000 users accessed nanoHUB to view a collection of seminars, tutorials, animations, publications, and simulation tools submitted by more than 390 contributors from all over the world. But the nanoHUB is more than just a repository. It is a place where researchers and educators can meet and accomplish real work. The nanoHUB offers integrated, online web meetings via Macromedia Breeze, source code collaboration through its nanoFORGE area, events calendars, and many other services designed to connect researchers and build a community. Most importantly, the nanoHUB connects users to the simulation tools they need for research and education. Users can access more than 50 interactive, graphical tools, and not only launch jobs, but also visualize and analyze the results-all via an ordinary web browser. In the same 12-month period mentioned earlier, more than 5,900 users performed over 226,000 online simulations. The NCN's emphasis on usability has produced a clean interface that makes it easy to use powerful research tools. Although simulation codes can be accessed through a web browser, they are executed on state-of-the-art computational facilities. The nanoHUB has partnered with the TeraGrid and the Open Science Grid to deliver the computational cycles needed by the growing community of nanoHUB users. The nanoHUB middleware hides much of the complexity of Grid computing, handling authentication, authorization, file transfer, and visualization, and letting the researcher focus on research. This approach also helps educators bring these tools to the classroom, letting them avoid the complexities of Grid computing and focus instead on physics. This talk will start with a live demonstration of nanoHUB and show how it can be used to support collaborative research and educational activities for nanotechnology development. http://www.slis.indiana.edu/media/net_sci_2008/ncs_02_04.mp3 Thu, 20 Mar 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_11_26.mp3 Networks and Complex Systems Fall 2007 (audio): The Social Informatics Data Grid is a new infrastructure designed to transform how social and behavioral scientists collect and annotate data, collaborate and share data, and analyze and mine large data repositories. An important goal of the project is to be compatible with existing databases and tools that support the sharing, storage and retrieval of archival data sets. It is built on web and grid services to enable transparent access to data and analysis resources from anywhere and to leverage new and emerging web-based technologies created by a large and growing community of developers around the world. At the heart of the SIDGrid design is a rich data model that captures notions of time, data streams, and semi-structured data attached to these streams to enable powerful manipulations of multimodal data spread across data resources. Through query and analysis services deployed against the data warehoused in the SIDGrid users can perform new classes of experiments. Shared data resources available from anywhere over the Web introduces new capabilities to the process of collection and analysis of data – collaborative annotation among them – without relinquishing control over sensitive data via an embedded security model. This project is still in the development phase and feedback from user communities is essential for determining which functions are most important and should be developed next. http://www.slis.indiana.edu/media/net_sci_2007/ncs_11_26.mp3 Wed, 19 Mar 2008 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_11_05.mp3 Networks and Complex Systems Fall 2007 (audio): Historical trajectories of land cover change in developed countries have provided the basis for a theory of forest transition. To briefly summarize, Forest Transition Theory (FTT) suggests that nations experience dramatic deforestation during a frontier period of heavy resource use and this deforestation phase is eventually followed by a period of reforestation after some period of economic development. A considerable amount of research has focused on the drivers of deforestation but we have a less complete understanding of the diverse factors contributing to reforestation and the prospects for a transition from deforestation to reforestation in different economies. These forest cover trajectories are the result of interactions between social and ecological processes operating at multiple spatial and temporal scales and there are numerous methodological approaches that have been used to examine the complexity in these coupled social-ecological systems. This presentation summarizes findings to date from research examining the role of landuse decision-making in land cover change in the Midwest United States, Brazil and Laos. Results are presented from the integration of agent-based models of land cover change and empirical data drawn from social surveys and remotely sensed data (aerial photography and satellite imagery). Findings from spatially explicit experimental work are also discussed that address the role of landowner heterogeneity and how management activities from diverse local-level actors result in complex macro-scale outcomes. http://www.slis.indiana.edu/media/net_sci_2007/ncs_11_05.mp3 Mon, 12 Nov 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_10_29.mp3 Networks and Complex Systems Fall 2007 (audio): Like many other complex human endeavors, scientific work is a decentralized, heterogeneous activity spanning organizational, disciplinary, technical boundaries. As science begins to address large-scale systems, the growing complexity of scientific work processes requires new infrastructure for understanding and managing the production of knowledge from distributed observation, simulation, analysis, and discourse activities. Cyberenvironments extend existing science application capabilities to include the ability to record, analyze, and interpret provenance documentation describing the causal relationships between processes and artifacts in scientific work. Using provenance-enabled collaboration and analysis tools, scientists can efficiently assess, validate, reproduce, and refine experiments and results. Provenance documentation enriches the scientific research record, enabling significant results to be preserved along with much of the associated information necessary to correctly interpret them. NCSA's suite of prototype Cyberenvironment tools is based around the idea of semantic content networks and built around the World Wide Web Consortium's Resource Description Framework (RDF). RDF provides an application and domain-neutral way to represent metadata, and can thus be used to link domain-specific information with generic vocabularies for describing artifacts and work processes. NCSA's work in the Grid Provenance Challenge, for instance, has demonstrated the applicability of RDF to representing scientific workflow executions, enabling data products to be linked via RDF to descriptions of the complex processes that produced them. The emerging Open Provenance Model attempts to further abstract the notion of causal relationships in scientific and other work processes, allowing provenance-enabled tools to link independently-observed processes together form descriptions of larger-scale processes. The scientific research record can then be understood as a semantic network of causality and thus be linked with other relevant networks, such as social networks, to provide a comprehensive model of scientific work that can be applied to new communities to build powerful science Cyberenvironments that maximize the impact of collaborative, systems-scale scientific work. http://www.slis.indiana.edu/media/net_sci_2007/ncs_10_29.mp3 Mon, 05 Nov 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_10_08.mp3 Networks and Complex Systems Fall 2007 (audio): Matrix representations of graphs provide a useful alternative and supplement to other graph drawing methods. In matrix representations matrix orderings take the place of graph layouts and have a critical impact on the usefulness of the resulting matrix. We consider some factors that may make one algorithm better than another, and examine some ordering algorithms in light of these factors. We also consider the problem of interpreting, from a qualitative perspective, matrix based representations produced by some of these algorithms. Finally, we present some on-going research regarding breadth-first search ordered matrices of small-world graphs based on quantitative analysis of the resulting ordered matrices. http://www.slis.indiana.edu/media/net_sci_2007/ncs_10_08.mp3 Wed, 10 Oct 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_09_24.mp3 Networks and Complex Systems Fall 2007 (audio): Ten years - a geological epoch on the computing time scale. Looking back, a decade brought the web and consumer email, digital cameras and music, broadband networking, multifunction cell phones, WiFi, HDTV, telematics, multiplayer games, electronic commerce and computational science. It also brought spam, phishing, identity theft, software insecurity, outsourcing and globalization, information warfare and blurred work-life boundaries. What will a decade of technology advances bring in communications and collaboration, sensors and knowledge management, modeling and discovery, electronic commerce and digital entertainment, critical infrastructure management and security? Prognostication is always fraught with challenges, especially when predicting the effects of exponential change. Aggressively inventing the future, based on perceived needs and opportunities, is far more valuable. As Daniel Burnham famously remarked, "Make no little plans, they have no power to fire men's spirits." In this presentation, we present some visions of a technology-enriched future, driven by emerging technologies and by national and international policies and competitive strategies. We also discuss their implications for university futures, in a rapidly changing world. http://www.slis.indiana.edu/media/net_sci_2007/ncs_09_24.mp3 Tue, 02 Oct 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_09_17.mp3 Networks and Complex Systems Fall 2007 (audio): Computational science investigations carried out through cyberinfrastructure frameworks are capable of generating quantities of data far larger and more tightly related than previous hand-driven techniques. For this data to be useful in other applications within the domain science or across multiple science domains, or just be useful and accessible through time, it must be described by metadata. Both syntatical, or lower level metadata, and semantic, or higher level metadata are important for reconstruction. A data product's provenance or derivation history is key to ascertaining such attributes as a data products quality. We argue that the best time and place to gather the metadata and provenance is closest to the source of generation of a dataset because that is where the most knowledge is. In this talk we discuss metadata, provenance, and search in cyberinfrastructure-driven computational science. Most communication about data products, from our experience, in computational science, uses XML. We discuss a solution to metadata storage in which a metadata catalog standing separate from the storage system on which the products reside provides rich domain-friendly communication with other components of the cyberinfrastructure. We examine provenance collection for workflow systems and data streaming, and tie that both to missing data in data streams through Kalman Filters and data quality through a data quality model. Finally we discuss current efforts to integrate cyberinfrastructure-driven computational science and digital repositories through provenance. http://www.slis.indiana.edu/media/net_sci_2007/ncs_09_17.mp3 Mon, 01 Oct 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_09_10.mp3 Networks and Complex Systems Fall 2007 (audio): The widespread adoption of home routers by the general public has added a new target for malware and crimeware authors. A router's ability to manipulate essentially all network traffic coming in to and out of a home, means that malware installed on these devices has the ability to launch powerful Man-In-The-Middle (MITM) attacks, a form of attack that has previously been largely ignored. Making matters worse, many homes have deployed wireless routers which are insecure if the attacker has geographic proximity to the router and can connect to it over its wireless channel. However, some have downplayed this risk by suggesting that attackers will be unwilling to spend the time and resources necessary, nor risk exposure to attack a large number of routers in this fashion. In this talk, we will consider the ability of malware to propagate from wireless router to wireless router over the wireless channel, infecting large urban areas where such routers are deployed relatively densely. We develop an SIR epidemiological model, and use it to simulate the spread of malware over major metropolitan centers in the US. Using hobbyist collected wardriving data from Wigle.net and our model, we show the potential for the infection of tens of thousands of routers in short periods of time is quite feasible. We consider simple prescriptive suggestions to minimize the likelihood that such attacks are ever performed. Next, we show a simple yet worrisome attacks that can easily and silently be performed from infected routers. We call this attack 'Trawler Phishing'. The attack generalizes a well understood failure of many web-sites to properly implement SSL, and allows attackers to harvest credentials from victims over a period of time, without the need to use spamming techniques or mimicked, but illegitimate web-sites, as in traditional phishing attacks, bypassing the most effective phishing prevention technologies. Further, it allows attackers to easily form data-portfolios on many victims, making collected data substantially more valuable. We consider prescriptive suggestions and countermeasure for this attack. The work on epidemiological modeling is joint work with Hao Hu, Vittoria Colizza and Alex Vespignani. The work on trawler phishing is joint work Sid Stamm. http://www.slis.indiana.edu/media/net_sci_2007/ncs_09_10.mp3 Mon, 01 Oct 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2007/sawhney_4_13.mov Telecom Dept. Seminar (video): The research activity on social aspects of new communication technologies is greatly determined by the arrival of a new technology rather than a theoretical reason for studying it. For instance, with the arrival of each new technology, one can be assured of inevitable papers on its diffusion. They will be meticulous in form with an extensive literature review, a theoretical vocabulary, and a sophisticated methodology, but it will be a pleasant surprise if they advance diffusion theory. Do we need diffusion studies for every new technology? There should be a theoretical rationale for each new diffusion study. Otherwise, we are simply running the research mill. I will argue that our scholarship will be more meaningful if it not only sheds light on a new technology, but also better prepares us to understand the NEXT one. I will draw out key insights from three projects - a workshop I co-organized, a co-authored paper that is under journal review, and an invited essay I am currently writing - and offer strategies for increasing the conceptual yield of new technology research. The issues involve go beyond the peculiarities of my own playground, and I hope to initiate a broader conversation. http://www.slis.indiana.edu/media/rkcsi_2007/sawhney_4_13.mov Mon, 14 May 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/saa/symposium_07.mp3 Indiana University's Society of American Archivists Annual Symposium (audio): Digitization continues to be a hot topic among archivists, information technologists, librarians, and nearly every other profession. Recent discussions have placed emphasis on the process of creating digital repositories as well as long-term challenges and strategies for preserving digital materials. Implicit in these discussions are the cultural implications of digitization. This panel will make these implicit concerns explicit. This three-person panel will examine the affect of digitization on archival practices, historians' use of primary and secondary sources, and how computer scientists are addressing the myriad of 1's and 0's. http://www.slis.indiana.edu/media/saa/symposium_07.mp3 Wed, 02 May 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/saa/symposium_07.mov Indiana University's Society of American Archivists Annual Symposium (video): Digitization continues to be a hot topic among archivists, information technologists, librarians, and nearly every other profession. Recent discussions have placed emphasis on the process of creating digital repositories as well as long-term challenges and strategies for preserving digital materials. Implicit in these discussions are the cultural implications of digitization. This panel will make these implicit concerns explicit. This three-person panel will examine the affect of digitization on archival practices, historians' use of primary and secondary sources, and how computer scientists are addressing the myriad of 1's and 0's. http://www.slis.indiana.edu/media/saa/symposium_07.mov Wed, 02 May 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_04_06.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): Like all social movements, technology movements grow from inauspicious roots. Their success depends on overcoming many challenges; chief among them is proving to various constituencies that a certain technology is worthwhile. Proving the worth of technology entails making associations between objects and ideals and supporting those associations by acquiring resources and mobilizing adherents. This lecture examines the case of the circuit rider movement, a cadre of politically progressive activists who, throughout the late 90s, sought to distribute the spoils of the contemporary IT revolution to grassroots and nonprofit organizations. Drawing on three-years of ethnographic research and integrating concepts from science and technology studies, economic sociology, and the study of collective behavior and social movements, I show how the circuit riders overcame structural challenges and mobilized a movement by drawing equivalences between information technology and organizational mission in the voluntary sector. Building on this form of association, the circuit riders successfully convinced resource holders and other activists that information technologies were vital to the future of the voluntary sector and a critical component of its mission to promote social and economic justice and a cleaner environment. http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_04_06.mp3 Wed, 25 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_04_06.mov The Rob Kling Center for Social Informatics Speaker Series (video): Like all social movements, technology movements grow from inauspicious roots. Their success depends on overcoming many challenges; chief among them is proving to various constituencies that a certain technology is worthwhile. Proving the worth of technology entails making associations between objects and ideals and supporting those associations by acquiring resources and mobilizing adherents. This lecture examines the case of the circuit rider movement, a cadre of politically progressive activists who, throughout the late 90s, sought to distribute the spoils of the contemporary IT revolution to grassroots and nonprofit organizations. Drawing on three-years of ethnographic research and integrating concepts from science and technology studies, economic sociology, and the study of collective behavior and social movements, I show how the circuit riders overcame structural challenges and mobilized a movement by drawing equivalences between information technology and organizational mission in the voluntary sector. Building on this form of association, the circuit riders successfully convinced resource holders and other activists that information technologies were vital to the future of the voluntary sector and a critical component of its mission to promote social and economic justice and a cleaner environment. http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_04_06.mov Wed, 25 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_03_30.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): This lecture will consider the present state of the digital divide worldwide. It will do so by inventorying the achievements and shortcomings of five years of digital divide research (2000-2005). Achievements are classified under four successive types of access: motivational, physical, skills and usage. A shift of attention from physical access to skills and usage is observed. In terms of physical access the divide seems to be closing in the most developed countries. In contrast, in terms of digital skills and the use of applications, the divide persists and perhaps widens or deepens. Among the shortcomings of digital divide research are its lack of theory, conceptual definition, interdisciplinary approach, qualitative research and longitudinal research. The second part of the lecture will discuss more basic questions about inequality in the information society. The focus is on three questions: (1)To what type of inequality does the digital divide concept refer? (2) What is new about the inequality of access to and use of ICTs as compared to other scarce material and immaterial resources? (3) Do new types of inequality exist or rise in the information society? http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_03_30.mp3 Wed, 25 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_03_30.mov The Rob Kling Center for Social Informatics Speaker Series (video): This lecture will consider the present state of the digital divide worldwide. It will do so by inventorying the achievements and shortcomings of five years of digital divide research (2000-2005). Achievements are classified under four successive types of access: motivational, physical, skills and usage. A shift of attention from physical access to skills and usage is observed. In terms of physical access the divide seems to be closing in the most developed countries. In contrast, in terms of digital skills and the use of applications, the divide persists and perhaps widens or deepens. Among the shortcomings of digital divide research are its lack of theory, conceptual definition, interdisciplinary approach, qualitative research and longitudinal research. The second part of the lecture will discuss more basic questions about inequality in the information society. The focus is on three questions: (1)To what type of inequality does the digital divide concept refer? (2) What is new about the inequality of access to and use of ICTs as compared to other scarce material and immaterial resources? (3) Do new types of inequality exist or rise in the information society? http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_03_30.mov Wed, 25 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/jobseries_03_07.mp3 SLIS Job Seeking Workshop Series; 2007 (audio): Speaker: Brian Kleber, Regional Director of the South Central Indiana Small Business Development Center Facilitator: Howard Rosenbaum http://www.slis.indiana.edu/media/jobseek07/jobseries_03_07.mp3 Tue, 24 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/jobseries_03_07.mov SLIS Job Seeking Workshop Series; 2007 (video): Speaker: Brian Kleber, Regional Director of the South Central Indiana Small Business Development Center Facilitator: Howard Rosenbaum http://www.slis.indiana.edu/media/jobseek07/jobseries_03_07.mov Tue, 24 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_04_02.mp3 Networks and Complex Systems 2007 (audio): The Physics and Astronomy Classification Scheme (PACS) had been introduced by the American Institute of Physics (AIP) in 1975 to identify fields and sub-fields of physics. Each document published by the AIP has one or more of these PACS numbers. Lately other databases and online websites are using this classification scheme to group articles and authors in different sub-fields of physics and assigning these numbers to articles published in journals other than the AIP journals. Since an article is assigned more than one PACS number, we analyse the co-occurence of PACS numbers over a period of 20 years, from 1985 to 2005. The network of PACS co-occurences is an extremely dense network which exhibits small world properties. It consists of one big giant component with PACS numbers in the general category exhibiting the highest betweeness centrality. We also use various clustering techniques to study the clusters of PACS numbers for each year. The clusters formed strongly overlap with each other and we use the CFinder software to identify the overlapping clusters. Though the major communities remain the same, we are able to identify sub-communities within these which change over time. We also uncover unexpected connections between very different communities. http://www.slis.indiana.edu/media/net_sci_2007/ncs_04_02.mp3 Thu, 05 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_03_26.mp3 Networks and Complex Systems 2007 (audio): Packing problems, atomic clusters, polymers, and the ultimate building blocks of life, proteins, all live in high-dimensional conformation spaces littered with forbidden regions induced by self-avoidance. The classical approach to protein folding inspired by statistical mechanics avoids this high dimensional structure of the conformation space by using effective coordinates. Here we introduce a network approach to capture the statistical properties of the structure of conformation spaces, and reveal the correlations induced in the energy landscape by the self-avoidance property of a polypeptide chain. We show that the folding pathways along energy gradients organize themselves into scale free networks, thus explaining previous observations made via Molecular Dynamics (MD) simulations. We also show that these energy landscape correlations are essential for recovering the observed connectivity exponent, which belongs to a different universality class than that of random energy models. We further corroborate our results by MD simulations on a 20-monomer AK peptide. http://www.slis.indiana.edu/media/net_sci_2007/ncs_03_26.mp3 Thu, 05 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_03_02.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): Cultural and scientific industries are today massively turning to digital media as the primary medium for the production and distribution of their products, either through digitization of cultural artifacts, creation of new forms of cultural expression and scientific experimentation (e.g., video games, distributed simulations), or reliance on digital tools in the creation process itself (special effects, CAD). Yet, there are today no known solutions to the problem of preserving complex digital objects over time. At the heart of the problem lies a fundamental distinction between traditional (paper-based) and digital documentary resources. http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_03_02.mp3 Thu, 05 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_03_02.mov The Rob Kling Center for Social Informatics Speaker Series (video): Cultural and scientific industries are today massively turning to digital media as the primary medium for the production and distribution of their products, either through digitization of cultural artifacts, creation of new forms of cultural expression and scientific experimentation (e.g., video games, distributed simulations), or reliance on digital tools in the creation process itself (special effects, CAD). Yet, there are today no known solutions to the problem of preserving complex digital objects over time. At the heart of the problem lies a fundamental distinction between traditional (paper-based) and digital documentary resources. http://www.slis.indiana.edu/media/rkcsi_2007/rkcsi_03_02.mov Thu, 05 Apr 2007 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/archivetips_02_20.mp3 Indiana University Society of American Archivists - Student Chapter (audio): The job search workshop will offer several perspectives concerning archival job hunting and the hiring process. Presenting will be Phil Bantin, Director of both the I.U.'s University Archives and SLIS Archives and Records Management Specialization; Ryan Lee, recent SLIS graduate and the Assistant Archivist at I.U.'s University Archives; and Ashley Large, recent SLIS graduate. http://www.slis.indiana.edu/media/jobseek07/archivetips_02_20.mp3 Mon, 05 Mar 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/archivetips_02_20.mov Indiana University Society of American Archivists - Student Chapter (video): The job search workshop will offer several perspectives concerning archival job hunting and the hiring process. Presenting will be Phil Bantin, Director of both the I.U.'s University Archives and SLIS Archives and Records Management Specialization; Ryan Lee, recent SLIS graduate and the Assistant Archivist at I.U.'s University Archives; and Ashley Large, recent SLIS graduate. http://www.slis.indiana.edu/media/jobseek07/archivetips_02_20.mov Mon, 05 Mar 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/jobseries_02_28.mp3 SLIS Job Seeking Workshop Series; 2007 (audio): This SLIS Job Seeking Workshop discussion will provide valuable tips for writing successful cover letters and how to handle the interviewing process for positions in public libraries. The featured speaker will be Steve Backs from the Monroe County Public Library. The event facilitator is David Ross. http://www.slis.indiana.edu/media/jobseek07/jobseries_02_28.mp3 Mon, 05 Mar 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/jobseries_02_28.mov SLIS Job Seeking Workshop Series; 2007 (video): This SLIS Job Seeking Workshop discussion will provide valuable tips for writing successful cover letters and how to handle the interviewing process for positions in public libraries. The featured speaker will be Steve Backs from the Monroe County Public Library. The event facilitator is David Ross. http://www.slis.indiana.edu/media/jobseek07/jobseries_02_28.mov Mon, 05 Mar 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_02_26.mp3 Networks and Complex Systems 2007 (audio): Imagine if, on moving into a new house, you were given a box full of electrical components, rather than the shiny appliances you were hoping for. Hoping to find some assembly instructions, instead you only have some pictures of the final appliances. Your task is to assemble them: an almost impossible mission. For a start, we would not even know what 90% of the components do, let alone which appliance they are for. This is where we find ourselves in biology at the moment. Amazing advances have been made in identifying the basic building blocks of life: proteins. The sequencing of genomes of multiple different species has produced an almost exhaustive catalogue of the proteins. This is a great wealth of data. However, only a few of these proteins are understood, and their interactions even less so: there are no instructions in the box. Proteins form the basis of most biological structures, and of the biochemical reactions we understand as life. The key challenge in this new century is to understand how these components (the proteins) work together. We call this study proteomics. http://www.slis.indiana.edu/media/net_sci_2007/ncs_02_26.mp3 Fri, 02 Mar 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_02_12.mp3 Networks and Complex Systems 2007 (audio): Research on digital media tends to characterize the emergence of new genres without reference to social networks, even though community and social interaction are invoked. In this talk, we examine Flash animations posted to Newgrounds.com, a major web portal for amateur Flash, from a social network perspective. Results indicate that participants social network positions are strongly associated with the genres of Flash they produce. We argue from these findings that the social networks of Flash authors contribute to the establishment of genre norms, and that a social network approach can be crucial to understanding genre emergence. http://www.slis.indiana.edu/media/net_sci_2007/ncs_02_12.mp3 Mon, 19 Feb 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2007/ncs_02_05.mp3 Networks and Complex Systems 2007 (audio): This talk will present two research projects under way in the Network and agents Network (NaN), which study ways of leveraging online social behavior for better Web search. GiveALink.org is a social bookmarking site where users donate their personal bookmarks. A search and recommendation engine is built from a similarity network derived from the hierarchical structure of bookmarks, aggregated across users. 6S is a distributed Web search engine based on an ad aptive peer network. By learning about each other, peers can route queries through the network to efficiently reach knowledgeable nodes. The resulting peer network structures itself as a small world that uncovers semantic communities and outperforms centralized search engines. http://www.slis.indiana.edu/media/net_sci_2007/ncs_02_05.mp3 Mon, 19 Feb 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/feb14.ppt SLIS Job Seeking Workshop Series (slides): Slides used by Carolyn Walters in the presentation. http://www.slis.indiana.edu/media/jobseek07/feb14.ppt Thu, 15 Feb 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/feb14.mp3 SLIS Job Seeking Workshop Series (audio): Taped February 14th, 2007 http://www.slis.indiana.edu/media/jobseek07/feb14.mp3 Thu, 15 Feb 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/jobseek07/feb14.mov SLIS Job Seeking Workshop Series (video): Taped February 14th, 2007 http://www.slis.indiana.edu/media/jobseek07/feb14.mov Thu, 15 Feb 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_11_13.mp3 Networks and Complex Systems 2006 (audio): This talk will present two research projects under way in the Network and agents Network (NaN), which study ways of leveraging online social behavior for better Web search. GiveALink.org is a social bookmarking site where users donate their personal bookmarks. A search and recommendation engine is built from a similarity network derived from the hierarchical structure of bookmarks, aggregated across users. 6S is a distributed Web search engine based on an adaptive peer network. By learning about each other, peers can route queries through the network to efficiently reach knowledgeable nodes. The resulting peer network structures itself as a small world that uncovers semantic communities and outperforms centralized search engines. http://www.slis.indiana.edu/media/net_sci_2006/ncs_11_13.mp3 Mon, 08 Jan 2007 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/rheingold_rkcsi_11_27.mov The Rob Kling Center for Social Informatics Speaker Series (video): Are new kinds of political and economic systems emerging, as Yochai Benkler has asserted? I will talk about Smart Mobs and beyond: toward a broad interdisciplinary study of human cooperation and collective action. http://www.slis.indiana.edu/media/rkcsi_2006/rheingold_rkcsi_11_27.mov Wed, 13 Dec 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/rheingold_rkcsi_11_27.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): Are new kinds of political and economic systems emerging, as Yochai Benkler has asserted? I will talk about Smart Mobs and beyond: toward a broad interdisciplinary study of human cooperation and collective action. http://www.slis.indiana.edu/media/rkcsi_2006/rheingold_rkcsi_11_27.mp3 Wed, 13 Dec 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_12_04.mp3 Networks and Complex Systems 2006 (audio): The "Open Access (OA) Advantage" in citations consists of: Early Advantage (early self-archiving produces both earlier and more citations), Usage Advantage (more downloads for OA articles, correlated with later citations), Competitive Advantage (relative citation advantage of OA over non-OA articles: disappears at 100% OA), Quality Advantage (OA advantage is higher, the higher the quality of the article) and Quality Bias (authors selectively self-archiving their higher quality articles - a non-causal component: disappears at 100% OA). We are currently comparing the OA advantage for mandated and spontaneous (self-selected) self-archiving. The growing webwide database of Open Access (OA) articles, the proposed US Federal Research Public Access Act (FRPAA) and the UK Research Assessment Exercise's recent transition to metrics will make it possible to: (1) motivate more researchers to provide OA by self-archiving; (2) map the growth of OA across disciplines, countries and languages; (3) navigate the OA literature using citation-linking and impact ranking; (4) measure, extrapolate and predict the research impact of individuals, groups, institutions, disciplines, languages and countries; (5) measure research performance and productivity, (6) assess candidates for research funding; (7) assess the outcome of research funding, (8) map the course of prior research lines, in terms of individuals, institutions, journals, fields, nations; (9) analyze and predict the direction of current and future research trajectories; and (10) provide teaching and learning resources that guide students (via impact navigation) through the large and growing OA research literature in a way that navigating the web via google alone cannot come close to doing. http://www.slis.indiana.edu/media/net_sci_2006/ncs_12_04.mp3 Wed, 13 Dec 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_11_27.mp3 Networks and Complex Systems 2006 (audio): The particle swarm algorithm is implemented in computer programs that solve hard problems by simulating social processes. Like human beings, "particles" in a population interact, sharing their successes, and over time the entire population settles on optimal patterns of parameters. The performance of the algorithm depends on a number of things, including population size and communication structure, the nature of the rules for interactions among particles, the method by which they are propelled, and the values of coefficients that are used to control convergence and explosion. As the paradigm has evolved since the first papers were presented in 1995, the basic particle swarm has become both more effective and more concise. In this talk I will discuss the philosophy and history of the method, compare some basic versions, discuss issues in implementation, and present some important topics for future research. http://www.slis.indiana.edu/media/net_sci_2006/ncs_11_27.mp3 Wed, 13 Dec 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_11_20.mp3 Networks and Complex Systems 2006 (audio): Unraveling the neural basis of behavior is a daunting task. Beyond the obvious experimental difficulties, there are significant theoretical challenges that are typical of all biological systems. These challenges include (1) the dynamical complexity and dense interconnectivity of the underlying elements, (2) the often counterintuitive designs produced by evolution, and (3) the fact that nervous systems co-evolved with the bodies and environments in which they are embedded, and can only really be understood within this larger context. One approach to these difficulties is the careful study of idealized models of complete brain-body-environment systems. Like Galileo's frictionless planes, such frictionless brains (and bodies, and environments) can help us to build intuition and, ultimately, the conceptual framework and mathematical and computational tools necessary for understanding the mechanisms of behavior. In this talk, I will provide a broad overview of a systematic attempt to engage these issues through the evolution and analysis of dynamical "nervous systems" for model agents. Along the way, I will briefly survey a variety of projects, including the general dynamical behavior of recurrent neural circuits, the impact of circuit architecture on dynamics, the structure of fitness space and its influence on evolutionary processes, the interaction between neural and peripheral dynamics in evolved model pattern generators, the interplay of developmental bias and selection during evolution, and the evolution and analysis of learning and such minimally cognitive behaviors as categorical perception, short-term memory and selective attention. http://www.slis.indiana.edu/media/net_sci_2006/ncs_11_20.mp3 Thu, 14 Dec 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_11_06.mp3 Networks and Complex Systems 2006 (audio): What if we could all live in a fantasy game instead of the real world? That's not just a philosophical question any more. Though living in a fantasy, the gamers seem happy enough. And if they're happy, maybe others would be happier there as well. Maybe millions and millions of others. Indeed, given the choice between a fantasy world designed to be completely fun all the time, and the real world with its myriad problems, how many would choose reality? Very few, and in all likelihood, not enough to allow daily life in the real world to continue unchanged. http://www.slis.indiana.edu/media/net_sci_2006/ncs_11_06.mp3 Wed, 15 Nov 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/bpm/bpm_career_11_03.mov SLIS (video): Moderated by Keith Kuhn, Beta Phi Mu Chi Chapter President and Library Services Director, Public Library of Cincinnati and Hamilton Country Topics for discussion will include: the qualities necessary to succeed in the library profession, what they valued most from their library and information science education, what contributed to their success post-graduation, what challenges they now face, and what current students can do to better position themselves for success. http://www.slis.indiana.edu/media/bpm/bpm_career_11_03.mov Thu, 09 Nov 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/bpm/bpm_career_11_03.mp3 SLIS (audio): Moderated by Keith Kuhn, Beta Phi Mu Chi Chapter President and Library Services Director, Public Library of Cincinnati and Hamilton Country Topics for discussion will include: the qualities necessary to succeed in the library profession, what they valued most from their library and information science education, what contributed to their success post-graduation, what challenges they now face, and what current students can do to better position themselves for success. http://www.slis.indiana.edu/media/bpm/bpm_career_11_03.mp3 Thu, 09 Nov 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/hart_rkcsi_10_13.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): There are a variety of forums used to negotiate international regimes for information and communication technologies (ICTs). While recently, much scholarly attention has been paid to ICANN and WSIS, these two forums are not necessarily the most important or authoritative. The G8 and the OECD, for example, are considerably more important for ICT regime creation and maintenance. The purpose of this paper is to put research on ICT regimes on a sounder footing by surveying the literature and proposing a new agenda for research. http://www.slis.indiana.edu/media/rkcsi_2006/hart_rkcsi_10_13.ppt Wed, 01 Nov 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/hart_rkcsi_10_13.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): There are a variety of forums used to negotiate international regimes for information and communication technologies (ICTs). While recently, much scholarly attention has been paid to ICANN and WSIS, these two forums are not necessarily the most important or authoritative. The G8 and the OECD, for example, are considerably more important for ICT regime creation and maintenance. The purpose of this paper is to put research on ICT regimes on a sounder footing by surveying the literature and proposing a new agenda for research. http://www.slis.indiana.edu/media/rkcsi_2006/hart_rkcsi_10_13.mp3 Wed, 01 Nov 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/hart_rkcsi_10_13.mov The Rob Kling Center for Social Informatics Speaker Series (video): There are a variety of forums used to negotiate international regimes for information and communication technologies (ICTs). While recently, much scholarly attention has been paid to ICANN and WSIS, these two forums are not necessarily the most important or authoritative. The G8 and the OECD, for example, are considerably more important for ICT regime creation and maintenance. The purpose of this paper is to put research on ICT regimes on a sounder footing by surveying the literature and proposing a new agenda for research. http://www.slis.indiana.edu/media/rkcsi_2006/hart_rkcsi_10_13.mov Wed, 01 Nov 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_10_23.mp3 Networks and Complex Systems 2006 (audio): Evolutionary algorithms rarely deal with ontogenetic, non-inherited alteration of genetic information because they are based on a direct genotype-phenotype mapping. In contrast, in Nature several processes have been discovered which alter genetic information encoded in DNA before it is translated into amino-acid chains. Ontogenetically altered genetic information is not inherited but extensively used in regulation and development of phenotypes, giving organisms the ability to, in a sense, re-program their genotypes according to environmental clues. An example of post-transcriptional alteration of gene-encoding sequences is the process of RNA Editing. Here we introduce a novel Agent-based model of genotype editing and a computational study of its evolutionary performance in static and dynamic environments. This model builds on our previous Genetic Algorithm with Edition, but presents a fundamentally novel architecture in which coding and non-coding genetic components are allowed to coevolve. Our goal is twofold: (1) to study the role of RNA Editing regulation in the evolutionary process, and (2) to investigate the conditions under which genotype edition improves the optimization performance of evolutionary algorithms. We show that genotype edition allows evolving agents to perform better in several classes of fitness functions, both in static and dynamic environments. We also present evidence that the indirect genotype/phenotype mapping resulting from genotype editing leads to a better exploration/exploitation compromise of the search process. Therefore, we show that our biologically-inspired model of genotype edition can be used to both facilitate understanding of the evolutionary role of RNA regulation based on genotype editing in biology, and advance the current state of research in Evolutionary Computation. http://www.slis.indiana.edu/media/net_sci_2006/ncs_10_23.mp3 Mon, 13 Nov 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_10_16.mp3 Networks and Complex Systems 2006 (audio): The celebrated tale of his "Midnight Ride" notwithstanding, Paul Revere's role in the events leading up to the American Revolution remains rather obscure. Joseph Warren, known as the man who sent Revere on that ride, presents a similar quandary. What was the nature of the roles they played in the mobilization process? I address the question from a social structural perspective, reassessing the evidence and reconsidering the key concept of brokerage. The analysis shows that they were bridges par excellence, spanning the various social chasms and connecting disparate organizational elements of the movement, thus, bringing together "men of all orders" to forge an emerging movement. Shin-Kap Han (Ph.D., Columbia University) is Associate Professor of Sociology at the University of Illinois at Urbana-Champaign. His areas of interest are Social Networks, Economic Sociology, Organizations and Institutions, Korean Society (Historical/Contemporary), Careers, and Quantitative Methods. He is currently working on, among others, Korean Chaebol ("Family Business: The Marriage Network of Chaebol Families in Korea") and large scale social movement and networks ("To Harness an Outbreak: A Microstructural Account of Mobilization for the March First Movement"). http://www.slis.indiana.edu/media/net_sci_2006/ncs_10_16.mp3 Wed, 25 Oct 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_10_09.mp3 Networks and Complex Systems 2006 (audio): This talk will describe a general approach for designing multi-sensory (visual, auditory and touch) displays of abstract data. One aim of designing such displays is to create tools that help people understand large amounts of data and find useful patterns in the data. This activity can be described as "Perceptual Data Mining". While the motivation is simple enough, actually designing appropriate mappings between the abstract information and the human sensory channels is complex and must consider a broad range of human perceptual capabilities and also account for sensory interactions. This talk will discuss a number of relevant design issues, including; the multi-sensory design space, the design process, using design guidelines and how to evaluate designs. The concepts will be described in the context of a real world case study that aims to find useful trading patterns in stock market data. http://www.slis.indiana.edu/media/net_sci_2006/ncs_10_09.mp3 Thu, 14 Dec 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_09_18.mp3 Networks and Complex Systems 2006 (audio): Social network theory was developed to help conceptualize the complexities social relations, and modern marketing strategies focus on the complexities of managing relationships with customers. During this talk, I review three dominant perspectives of social network theory that marketing scholars have applied to advance relationship marketing thought and practice. As part of this review, I summarize key findings from the past 25 years of marketing literature that incorporates social network theory and/or analysis. I conclude by presenting recent trends that suggest that social network theory will become increasingly relevant and important to marketing researchers and practitioners that operate in an interactive marketing environment. http://www.slis.indiana.edu/media/net_sci_2006/ncs_09_18.mp3 Wed, 20 Sep 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_09_11.mp3 Networks and Complex Systems 2006 (audio): Few would disagree that trust is one of the key themes in organizational/behavioral research today. McEvily, Perrone, and Zaheer (2003, p. 1), for example, contend that while "trust has long figured prominently in scholarly and lay discourse alike;" it is only recently that organizational researchers have started devoting substantial attention to understanding the significance of trust. This is due to two simultaneous developments related an emphasis on collaboration, and changes in technology "that have reconfigured exchange and the coordination of work across distance and time." In this study, we tested three proposed models (additive, moderation, and mediation) to determine the role of trust in its relationship with communication and performance. Using the SNA perspespective, we conceptualize trustworthiness and communication in terms of centrality with respect to these factors. Our results indicate that the mediating model best explains the role of trust centrality but considering all three models presents a more complex picture. The strong support for the mediation model indicates that trust centrality generally acts as a mediator between communication centrality and performance. That is, the path through which communication leads to performance is through trust. The moderation model adds some nuances to the above general finding. It suggests that for trustworthy individuals, communication can enhance their performance. But, for those who are perceived as less trustworthy, high levels of communication can backfire. Their communication is perceived can be a source of annoyance, and unproductive use of the recipient's time. http://www.slis.indiana.edu/media/net_sci_2006/ncs_09_11.mp3 Thu, 14 Sep 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_04_17.mp3 Networks and Complex Systems 2006 (audio): Since the seminal work of Lotka and Volterra, Ecology has offered the inspiration to several unsophisticated yet insightful approaches that found thereafter a ready application to the more general field of Complex Systems. Strong of this excuse, we address with a zero-th order evolutionary model the issue of taxa's lifetime distribution. Altough the model is simple enough to be exactly solvable and makes no specific assumptions on the pattern of interaction between species, it offers a natural explanation to several, apparently conflicting, empirical data collections. http://www.slis.indiana.edu/media/net_sci_2006/ncs_04_17.mp3 Thu, 20 Apr 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/mueller_rkcsi_03_24.mov The Rob Kling Center for Social Informatics Speaker Series (video): This research focuses on the legal, economic, and political discourse on property rights in information that has developed around the Free/Open Source Software movement, copyright resistance, and advocates of "the commons." There is a paradox in the free software/free culture movement: It often makes ethical and normative appeals to communalist economic organization while relying on private contracts and copyright law to create informational commons. This paradox creates a tension, if not contradiction, in the associated political movements and advocacy practices. Some elements of the movement base their support for common property on moral or ethical grounds; this segment also tends to adopt or recycle communist symbolism (e.g., Che Guevara T-shirts) and/or attract support from anti-capitalist political constituencies. Another wing of the movement bases its support for non-exclusive property on an individualistic and utilitarian basis and often gains support from business. Rhetorically and politically, it is easier to be an info-communist than an info-liberal because our existing political categories and symbols tend to polarize common and private property. Info-liberals find themselves squeezed between unbounded ethical appeals to "the commons" on the one hand and unbounded support for private property and "the market" on the other. One aspect of my research agenda is to develop an analysis and rhetoric to support an info-liberalism. This talk explores the history, implications and distributional and market effects of different property regimes in communication and information. http://www.slis.indiana.edu/media/rkcsi_2006/mueller_rkcsi_03_24.mov Fri, 14 Apr 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/mueller_rkcsi_03_24.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): This research focuses on the legal, economic, and political discourse on property rights in information that has developed around the Free/Open Source Software movement, copyright resistance, and advocates of "the commons." There is a paradox in the free software/free culture movement: It often makes ethical and normative appeals to communalist economic organization while relying on private contracts and copyright law to create informational commons. This paradox creates a tension, if not contradiction, in the associated political movements and advocacy practices. Some elements of the movement base their support for common property on moral or ethical grounds; this segment also tends to adopt or recycle communist symbolism (e.g., Che Guevara T-shirts) and/or attract support from anti-capitalist political constituencies. Another wing of the movement bases its support for non-exclusive property on an individualistic and utilitarian basis and often gains support from business. Rhetorically and politically, it is easier to be an info-communist than an info-liberal because our existing political categories and symbols tend to polarize common and private property. Info-liberals find themselves squeezed between unbounded ethical appeals to "the commons" on the one hand and unbounded support for private property and "the market" on the other. One aspect of my research agenda is to develop an analysis and rhetoric to support an info-liberalism. This talk explores the history, implications and distributional and market effects of different property regimes in communication and information. http://www.slis.indiana.edu/media/rkcsi_2006/mueller_rkcsi_03_24.mp3 Fri, 14 Apr 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/mueller_rkcsi_03_24.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): This research focuses on the legal, economic, and political discourse on property rights in information that has developed around the Free/Open Source Software movement, copyright resistance, and advocates of "the commons." There is a paradox in the free software/free culture movement: It often makes ethical and normative appeals to communalist economic organization while relying on private contracts and copyright law to create informational commons. This paradox creates a tension, if not contradiction, in the associated political movements and advocacy practices. Some elements of the movement base their support for common property on moral or ethical grounds; this segment also tends to adopt or recycle communist symbolism (e.g., Che Guevara T-shirts) and/or attract support from anti-capitalist political constituencies. Another wing of the movement bases its support for non-exclusive property on an individualistic and utilitarian basis and often gains support from business. Rhetorically and politically, it is easier to be an info-communist than an info-liberal because our existing political categories and symbols tend to polarize common and private property. Info-liberals find themselves squeezed between unbounded ethical appeals to "the commons" on the one hand and unbounded support for private property and "the market" on the other. One aspect of my research agenda is to develop an analysis and rhetoric to support an info-liberalism. This talk explores the history, implications and distributional and market effects of different property regimes in communication and information. http://www.slis.indiana.edu/media/rkcsi_2006/mueller_rkcsi_03_24.ppt Fri, 14 Apr 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_04_03.mp3 Networks and Complex Systems 2006 (audio): Search engines have become key media for our scientific, economic, and social activities by enabling people to access information on the Web in spite of its size and complexity. On the down side, search engines bias the traffic of users according to their page-ranking strategies, and some have argued that they create a vicious cycle that amplifies the dominance of established and already popular sites. We show that, contrary to these prior claims and our own intuition, the use of search engines actually has an egalitarian effect. We show that the search behavior by users mitigates the attraction of popular pages, directing more traffic toward less popular sites. http://www.slis.indiana.edu/media/net_sci_2006/ncs_04_03.mp3 Thu, 20 Apr 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_03_27.mp3 2006 Networks and Complex Systems (audio): Dictionary definitions provide an accessible and commonsense body of data describing the cultural understandings that individuals have about role-identities. This research analyzes cross-references between definitions of several hundred identities to see whether social institutions can be viewed as confluences of identity meanings. I created a zero-one adjacency matrix by linking identities to the concepts given in their definitions. I then computed boolean powers of the adjacency matrix to simulate the process of looking up words that definitions contain. Principal components analysis of the result organized identities into clusters corresponding to standard social institutions, like family, education, medicine, work, law, religion. The analysis sub-divided some standard institutions in interesting ways, and additionally it identified sexuality as an incipient social institution. http://www.slis.indiana.edu/media/net_sci_2006/ncs_03_27.mp3 Tue, 11 Apr 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/ahuja_rkcsi_03_10.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): The risks and challenges faced by client companies involved in offshore project development are many. Clients impose a range of control mechanisms to mitigate such challenges. Building on prior research utilizing control theory, this research investigates the effects of knowledge transfer requirements and client ISD capability in shaping the choice of control modes, as well as the choice of offshore model and relationships in offshore application development projects. Eight offshore application development projects were studied using a grounded theory approach. Results indicate that formal controls and pure-offshore models predominate in projects involving low knowledge transfer requirements, while a portfolio of control modes and hybrid models are preferred in projects involving high knowledge transfer requirements. Partner relationships are preferred in projects having high client ISD capability, while one-off relationships are favored in low ISD capability projects. http://www.slis.indiana.edu/media/rkcsi_2006/ahuja_rkcsi_03_10.ppt Fri, 14 Apr 2006 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/ahuja_rkcsi_03_10.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): The risks and challenges faced by client companies involved in offshore project development are many. Clients impose a range of control mechanisms to mitigate such challenges. Building on prior research utilizing control theory, this research investigates the effects of knowledge transfer requirements and client ISD capability in shaping the choice of control modes, as well as the choice of offshore model and relationships in offshore application development projects. Eight offshore application development projects were studied using a grounded theory approach. Results indicate that formal controls and pure-offshore models predominate in projects involving low knowledge transfer requirements, while a portfolio of control modes and hybrid models are preferred in projects involving high knowledge transfer requirements. Partner relationships are preferred in projects having high client ISD capability, while one-off relationships are favored in low ISD capability projects. http://www.slis.indiana.edu/media/rkcsi_2006/ahuja_rkcsi_03_10.mp3 Wed, 15 Mar 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/ahuja_rkcsi_03_10.mov The Rob Kling Center for Social Informatics Speaker Series (video): The risks and challenges faced by client companies involved in offshore project development are many. Clients impose a range of control mechanisms to mitigate such challenges. Building on prior research utilizing control theory, this research investigates the effects of knowledge transfer requirements and client ISD capability in shaping the choice of control modes, as well as the choice of offshore model and relationships in offshore application development projects. Eight offshore application development projects were studied using a grounded theory approach. Results indicate that formal controls and pure-offshore models predominate in projects involving low knowledge transfer requirements, while a portfolio of control modes and hybrid models are preferred in projects involving high knowledge transfer requirements. Partner relationships are preferred in projects having high client ISD capability, while one-off relationships are favored in low ISD capability projects. http://www.slis.indiana.edu/media/rkcsi_2006/ahuja_rkcsi_03_10.mov Wed, 15 Mar 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/gray_rkcsi_02_17.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): From the beginning of my research on new media use among queer and questioning rural youth, my Institutional Review Board's (IRB) investments in the appearance of distance, objectivity, and propriety were palpable. Each review of my IRB proposal came back with recommended tweaks to my research design that revealed little knowledge or experience dealing with material realities that define many rural communities. Requested revisions also spoke to the then (arguably current) uncertainty of how to conceptualize and regulate the Internet as a "field site." This discussion offers a detailed review of how my project's methodological approach uses information communication technologies (ICTs) as both tools and sites of ethnographic research. I show how the approach I took connects to and departs from the broader literature on studies of rurality, identity, and research of queer youth sexualities and genders. I move from the particularities of my investigation as it developed in the field to a brief overview of some of the dilemmas ethnographic studies of new media and sexuality face in defining a clear object of study. Earlier studies are examined to show how the implications of framing the unit of analysis as "new" and "sexual" played out in the research design of my investigations. The third and final part of this presentation explores what I call the "plasticity of vulnerability": the construction of youth (among a growing list of subjects) as vulnerable. This construction of youth-as-vulnerable is mapped through an analysis of the IRB approval process for this project. I unravel any presumptions of moral clarity and ethically driven structure to the research protocols built into this study. Instead, I scrutinize the politics and assumptions that led to the ad-hoc tailoring of ethical stipulations, by me and through campus IRB mandate. The IRB's imagining of rural places and queer youth as calling for "special accommodations" played a significant role in the decisions of who to include in this study and how to go about gathering their stories. The IRB process for this research casts an argument for deeper reflection on the critical role negotiations of methods, ethics, and politics play in constructing scientific knowledge about queer and questioning youth. http://www.slis.indiana.edu/media/rkcsi_2006/gray_rkcsi_02_17.ppt Fri, 03 Mar 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/gray_rkcsi_02_17.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): From the beginning of my research on new media use among queer and questioning rural youth, my Institutional Review Board's (IRB) investments in the appearance of distance, objectivity, and propriety were palpable. Each review of my IRB proposal came back with recommended tweaks to my research design that revealed little knowledge or experience dealing with material realities that define many rural communities. Requested revisions also spoke to the then (arguably current) uncertainty of how to conceptualize and regulate the Internet as a "field site." This discussion offers a detailed review of how my project's methodological approach uses information communication technologies (ICTs) as both tools and sites of ethnographic research. I show how the approach I took connects to and departs from the broader literature on studies of rurality, identity, and research of queer youth sexualities and genders. I move from the particularities of my investigation as it developed in the field to a brief overview of some of the dilemmas ethnographic studies of new media and sexuality face in defining a clear object of study. Earlier studies are examined to show how the implications of framing the unit of analysis as "new" and "sexual" played out in the research design of my investigations. The third and final part of this presentation explores what I call the "plasticity of vulnerability": the construction of youth (among a growing list of subjects) as vulnerable. This construction of youth-as-vulnerable is mapped through an analysis of the IRB approval process for this project. I unravel any presumptions of moral clarity and ethically driven structure to the research protocols built into this study. Instead, I scrutinize the politics and assumptions that led to the ad-hoc tailoring of ethical stipulations, by me and through campus IRB mandate. The IRB's imagining of rural places and queer youth as calling for "special accommodations" played a significant role in the decisions of who to include in this study and how to go about gathering their stories. The IRB process for this research casts an argument for deeper reflection on the critical role negotiations of methods, ethics, and politics play in constructing scientific knowledge about queer and questioning youth. http://www.slis.indiana.edu/media/rkcsi_2006/gray_rkcsi_02_17.mp3 Fri, 03 Mar 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/gray_rkcsi_02_17.mov The Rob Kling Center for Social Informatics Speaker Series (video): From the beginning of my research on new media use among queer and questioning rural youth, my Institutional Review Board's (IRB) investments in the appearance of distance, objectivity, and propriety were palpable. Each review of my IRB proposal came back with recommended tweaks to my research design that revealed little knowledge or experience dealing with material realities that define many rural communities. Requested revisions also spoke to the then (arguably current) uncertainty of how to conceptualize and regulate the Internet as a "field site." This discussion offers a detailed review of how my project's methodological approach uses information communication technologies (ICTs) as both tools and sites of ethnographic research. I show how the approach I took connects to and departs from the broader literature on studies of rurality, identity, and research of queer youth sexualities and genders. I move from the particularities of my investigation as it developed in the field to a brief overview of some of the dilemmas ethnographic studies of new media and sexuality face in defining a clear object of study. Earlier studies are examined to show how the implications of framing the unit of analysis as "new" and "sexual" played out in the research design of my investigations. The third and final part of this presentation explores what I call the "plasticity of vulnerability": the construction of youth (among a growing list of subjects) as vulnerable. This construction of youth-as-vulnerable is mapped through an analysis of the IRB approval process for this project. I unravel any presumptions of moral clarity and ethically driven structure to the research protocols built into this study. Instead, I scrutinize the politics and assumptions that led to the ad-hoc tailoring of ethical stipulations, by me and through campus IRB mandate. The IRB's imagining of rural places and queer youth as calling for "special accommodations" played a significant role in the decisions of who to include in this study and how to go about gathering their stories. The IRB process for this research casts an argument for deeper reflection on the critical role negotiations of methods, ethics, and politics play in constructing scientific knowledge about queer and questioning youth. http://www.slis.indiana.edu/media/rkcsi_2006/gray_rkcsi_02_17.mov Fri, 03 Mar 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_02_27.mp3 2006 Networks and Complex Systems (audio): We analyze evolutionary trends in artificial neural dynamics and network architectures specified by haploid genomes in the Polyworld computational ecology. We discover consistent trends in neural connection densities, synaptic weights and learning rates, entropy, mutual information, and an information-theoretic measure of complexity. In particular, we observe a consistent trend towards greater structural elaboration and adaptability, with a concomitant and statistically significant growth in neural complexity. http://www.slis.indiana.edu/media/net_sci_2006/ncs_02_27.mp3 Tue, 28 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_02_20.mp3 2006 Networks and Complex Systems (audio): We have developed an internet-based experimental platform (for examples, see http://groups.psych.indiana.edu) that allows groups of 2-200 people to interact with each other in real time on networked computers. I will describe experiments using this platform that explore how people attempt to solve simple problems while taking advantage of the developing solutions of other people in their social network. Over 15 rounds of problem solving, participants received feedback not only on the success of their own solutions to a simple search problem, but also on their neighbors¹ solutions and outcomes. Neighbors were determined by one of four network topologies: locally connected lattice, random, fully connected, and small-world (e.g. a lattice plus a few long-range connections). The results suggest that complete information is not always beneficial for a group, and that problem spaces requiring substantial exploration may benefit from networks with mostly locally connected individuals. We model the dissemination of innovations in these experiments using agents that probabilistically select choices guided by their own and their neighbors' explorations. http://www.slis.indiana.edu/media/net_sci_2006/ncs_02_20.mp3 Wed, 22 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/robey_rkcsi_02_10.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): In recent years, two sides of a debate have formed concerning the identity of the information systems (IS) field. Although this debate continues, the actual consequences of consensus and diversity for knowledge production remain unclear. This talk focuses on one aspect of diversity: the theoretical approaches underlying empirical research. Drawing from a review of the empirical literature on interorganizational information systems (IOS) published between 1990 and 2003, we identify "tight" and "loose" areas of theory in the IOS literature and conclude that both areas of theory contribute to IS as a heterogeneous field. Robey's talk will draw on his recent paper (of the same title) that is available on reserve at both the SLIS Library and SPEA Library. http://www.slis.indiana.edu/media/rkcsi_2006/robey_rkcsi_02_10.ppt Wed, 15 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/robey_rkcsi_02_10.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): In recent years, two sides of a debate have formed concerning the identity of the information systems (IS) field. Although this debate continues, the actual consequences of consensus and diversity for knowledge production remain unclear. This talk focuses on one aspect of diversity: the theoretical approaches underlying empirical research. Drawing from a review of the empirical literature on interorganizational information systems (IOS) published between 1990 and 2003, we identify "tight" and "loose" areas of theory in the IOS literature and conclude that both areas of theory contribute to IS as a heterogeneous field. Robey's talk will draw on his recent paper (of the same title) that is available on reserve at both the SLIS Library and SPEA Library. http://www.slis.indiana.edu/media/rkcsi_2006/robey_rkcsi_02_10.mp3 Wed, 15 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/robey_rkcsi_02_10.mov The Rob Kling Center for Social Informatics Speaker Series (video): In recent years, two sides of a debate have formed concerning the identity of the information systems (IS) field. Although this debate continues, the actual consequences of consensus and diversity for knowledge production remain unclear. This talk focuses on one aspect of diversity: the theoretical approaches underlying empirical research. Drawing from a review of the empirical literature on interorganizational information systems (IOS) published between 1990 and 2003, we identify "tight" and "loose" areas of theory in the IOS literature and conclude that both areas of theory contribute to IS as a heterogeneous field. Robey's talk will draw on his recent paper (of the same title) that is available on reserve at both the SLIS Library and SPEA Library. http://www.slis.indiana.edu/media/rkcsi_2006/robey_rkcsi_02_10.mov Wed, 15 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_02_13.mp3 2006 Networks and Complex Systems (audio): We present the TreeJuxtaposer and SequenceJuxtaposer visualization applications for comparing and browsing evolutionary trees and genomic sequences, respectively. These systems use the Focus+Context navigational metaphor of allowing users to fluidly stretch and shrink parts of the view, as if manipulating a rubber sheet with the borders tacked down. We introduce cognitive scalability to this approach by guaranteeing the visibility of landmarks at all times, so that users can stay oriented as they explore complex datasets. In our systems, landmarks can be regions of difference between datasets, or the results of a search, or user-chosen regions. This technique, which we call "accordion drawing", supports smooth realtime transitions between a big-picture overview and a drilled-down views that show details in context. Our new PRISAD infrastructure is highly scalable, allowing fluid realtime interaction with trees of several million nodes and multiple aligned sequences of up to 40 million total nucleotides. http://www.slis.indiana.edu/media/net_sci_2006/ncs_02_13.mp3 Wed, 15 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_02_06.mp3 2006 Networks and Complex Systems (audio): n recent years, our ability to collect network data has increased far beyond our capabilities to analyze this data. With this deluge of data, the simple, direct implementations of network analyses and data structures no longer suffice, and we must turn to more advanced techniques such as graph compression and parallel computing. This talk will introduce the Boost Graph Libraries, a set of libraries for graph and network analysis developed by the Open Systems Lab at Indiana University. The Boost Graph Libraries provide a consistent set of interfaces across the entirety of the productivity-performance spectrum, from the rapid-prototyping and visualization capabilities of BGL-Python, to the high-performance sequential BGL and cluster-capable Parallel BGL. This talk will explore the relative merits of each library, to determine which BGL may be right for your network analysis task, regardless of whether your network is measured in tens, thousands, millions, or billions. http://www.slis.indiana.edu/media/net_sci_2006/ncs_02_06.mp3 Wed, 15 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_01_30.mp3 2006 Networks and Complex Systems (audio): The Chicago metropolitan area has, for the past few years, become a key destination for Mexican transnationals, both temporary and permanent. Post-NAFTA Mexican immigrants have combined their cultural, artistic and network resources to create hybrid behavioral and cultural forms unlike those commonly used in America or Mexico. The use of these hybrid forms allows migrants to leverage their social and cultural resources to gain access to basic assistance, jobs, social support services, and other types of group-based or group-facilitated resources. This study was conducted in conjunction with the Field Museum in Chicago. It combined innovations in ethnographic researchâ such as the use of Atlas Ti and other ethnographic support tools with new techniques for egocentric social network data collection that incorporate electronic data collection and one-touch network discovery capabilities, to delve more deeply into the realities of life for the Mexican immigrant community. In the process, aspects of the widely popular network theory of migration are investigated in more detail than has been previously possible. In this talk, I present the motivations for the project, identify the factors that led to the synthesis of ethnography and social network analysis, explain the new approaches that the research team developed and, finally, present some initial findings from the project, calling attention to how those findings correspond to current thinking vis-a -vis network theory of migration and to the current immigration policy environment. http://www.slis.indiana.edu/media/net_sci_2006/ncs_01_30.mp3 Wed, 15 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2006/ncs_01_23.mp3 2006 Networks and Complex Systems (audio): W. Bradford Paley has deployed work in seemingly diverse settings: the Museum of Modern Art, the New York Stock Exchange, NYU Bioinformatics, the Whitney; he has won equally diverse recognition: an ID Design Distinction award, Grand Prize in Tokyo's international arts festival, engineering tool awards for input devices, fellowship in the New York Foundation for the Arts. The same principles drive all of this work: If you engage the eye, you can engage the mind-as long as you "know the protocol," and keep the message consistent. http://www.slis.indiana.edu/media/net_sci_2006/ncs_01_23.mp3 Wed, 15 Feb 2006 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2005/ncs_12_05.mp3 The Network Model of Sociological Production (audio): This talk is the first part of a much larger project on the evolution and dynamics of scientific fields. The long-term motivation for this work is to provide a "satellite" image of the evolution of scientific fields that will help us pinpoint the life-history of "good ideas." In this talk, I take sociology as a case study and describe the evolution and structure of sociological production networks from 1965 to the present. This work moves across citation, coauthorship and "topic" networks to provide a composite image of changes in the field over the last 40 years. I then link these findings substantively to questions about scientific consensus and cohesion in sociology and describe plans for future work on other fields. http://www.slis.indiana.edu/media/net_sci_2005/ncs_12_05.mp3 Fri, 16 Dec 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/shankar_rkcsi_12_02.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): Pervasive computing has the potential to effect large-scale transformational change in society. However, in everyday settings, like the home and in health care institutions, nonexperts will be expected to interact with pervasive computing environments as well. But whose needs, interests, and values are being embedded into these technologies? In particular, what do designers mean when they design for "autonomy"! I examine the pervasive computing and health care research discourse for its embedded assumptions about the nature of autonomy and trust that are informing design of home health care. I also suggest potential avenues for further critique and analysis. http://www.slis.indiana.edu/media/rkcsi_2006/shankar_rkcsi_12_02.mp3 Mon, 05 Dec 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/shankar_rkcsi_12_02.mov The Rob Kling Center for Social Informatics Speaker Series (video): Pervasive computing has the potential to effect large-scale transformational change in society. However, in everyday settings, like the home and in health care institutions, nonexperts will be expected to interact with pervasive computing environments as well. But whose needs, interests, and values are being embedded into these technologies? In particular, what do designers mean when they design for "autonomy"! I examine the pervasive computing and health care research discourse for its embedded assumptions about the nature of autonomy and trust that are informing design of home health care. I also suggest potential avenues for further critique and analysis. http://www.slis.indiana.edu/media/rkcsi_2006/shankar_rkcsi_12_02.mov Mon, 05 Dec 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2005/ncs_11_28.mp3 The Role of Sociology and Social Networks in Integrating the Health Sciences (audio): Over the last five or so years, a series of reports from the National Academy of Sciences and the National Institutes of Health, among others, have issued a call for integrating the biomedical sciences (BMS) and socio-behavioral sciences (BMS). While many approaches have been offered over the last 30 years to join the insights of different disciplinary projects together, all have failed to take hold. This presentation reviews those calls and attempts, raising the potential of social network perspective to fill the gap. Based on the example of models of the causes and consequences of the onset of illness/disease, the presentation follows the development of one network-based platform and ends with epistemological questions about future research. http://www.slis.indiana.edu/media/net_sci_2005/ncs_11_28.mp3 Tue, 29 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/connelly_rkcsi_11_18.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): Typical Computer Science education focuses on the technical and often ignores the social and ethical implications of the technology. Technology, however, does not exist in a vacuum. This talk begins with my personal journey from working on high performance networking environments for DARPA, to using technology to improve healthcare. Even within the discipline of healthcare, design choices have important social consequences. Early research in Health Informatics focused on integrating technology into medical environments to support health professionals. Focusing on the health professional, however, continues the power imbalance that already exists between patient and doctor. In the SURG lab, we are developing technologies to empower patients to manage their own health. This talk describes one such effort to design technological interventions for a patient group that would not traditionally be considered viable technology adopters because of their socio-economic class. http://www.slis.indiana.edu/media/rkcsi_2006/connelly_rkcsi_11_18.ppt Mon, 21 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/connelly_rkcsi_11_18.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): Typical Computer Science education focuses on the technical and often ignores the social and ethical implications of the technology. Technology, however, does not exist in a vacuum. This talk begins with my personal journey from working on high performance networking environments for DARPA, to using technology to improve healthcare. Even within the discipline of healthcare, design choices have important social consequences. Early research in Health Informatics focused on integrating technology into medical environments to support health professionals. Focusing on the health professional, however, continues the power imbalance that already exists between patient and doctor. In the SURG lab, we are developing technologies to empower patients to manage their own health. This talk describes one such effort to design technological interventions for a patient group that would not traditionally be considered viable technology adopters because of their socio-economic class. http://www.slis.indiana.edu/media/rkcsi_2006/connelly_rkcsi_11_18.mp3 Mon, 21 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/connelly_rkcsi_11_18.mov The Rob Kling Center for Social Informatics Speaker Series (video): Typical Computer Science education focuses on the technical and often ignores the social and ethical implications of the technology. Technology, however, does not exist in a vacuum. This talk begins with my personal journey from working on high performance networking environments for DARPA, to using technology to improve healthcare. Even within the discipline of healthcare, design choices have important social consequences. Early research in Health Informatics focused on integrating technology into medical environments to support health professionals. Focusing on the health professional, however, continues the power imbalance that already exists between patient and doctor. In the SURG lab, we are developing technologies to empower patients to manage their own health. This talk describes one such effort to design technological interventions for a patient group that would not traditionally be considered viable technology adopters because of their socio-economic class. http://www.slis.indiana.edu/media/rkcsi_2006/connelly_rkcsi_11_18.mov Mon, 21 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2005/ncs_11_14.mp3 Fall 2005 Talk Series on Network Systems (audio): Proteins do not evolve in isolation, but rather as components of complex genetic networks. Therefore, a protein's position in a network may indicate how central it is to cellular function, and hence how constrained it is evolutionarily. We have examined the protein-protein interaction networks in yeast, worm, and fly, and have found that proteins with a more central position in all three networks-regardless of the number of direct interactors-evolve more slowly and are more likely to be essential for survival. By studying various types of genetic networks in a number of different genomes, we can begin to understand the determinants of sequence evolution-and therefore of phenotypic evolution. http://www.slis.indiana.edu/media/net_sci_2005/ncs_11_14.mp3 Wed, 16 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/bryant_rkcsi_11_11.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): Socially interactive technologies (SITs), such as instant and text messaging, are beginning to redefine the social networks of today's youth. The research paradigms that we have previously used to study the relationship between youth and technology, however, do not fully capture the dynamic, social nature of these technologies. Building on previous research in computer-mediated communication, social and communication networks, and adolescent development, this presentation will call for a new line of research that focuses on the coevolution of youth's online and offline social networks, in order to better understand how technology is integrated into the lives of children and adolescents. A preliminary research project in this vein will be discussed. The project used social network data collection and analysis to look at 1) whether adolescents are creating more, but weaker ties using SITs; 2) to what extent adolescent SIT-facilitated networks overlap with friendship networks; and 3) whether SIT relationships are important for adolescents who have fewer offline peer ties. The results of the research point to a very complex dynamic between offline and SIT-based friendships, and will be used to highlight some of the challenges (and rewards) of conducting this type of research. http://www.slis.indiana.edu/media/rkcsi_2006/bryant_rkcsi_11_11.ppt Mon, 14 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/bryant_rkcsi_11_11.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): Socially interactive technologies (SITs), such as instant and text messaging, are beginning to redefine the social networks of today's youth. The research paradigms that we have previously used to study the relationship between youth and technology, however, do not fully capture the dynamic, social nature of these technologies. Building on previous research in computer-mediated communication, social and communication networks, and adolescent development, this presentation will call for a new line of research that focuses on the coevolution of youth's online and offline social networks, in order to better understand how technology is integrated into the lives of children and adolescents. A preliminary research project in this vein will be discussed. The project used social network data collection and analysis to look at 1) whether adolescents are creating more, but weaker ties using SITs; 2) to what extent adolescent SIT-facilitated networks overlap with friendship networks; and 3) whether SIT relationships are important for adolescents who have fewer offline peer ties. The results of the research point to a very complex dynamic between offline and SIT-based friendships, and will be used to highlight some of the challenges (and rewards) of conducting this type of research. http://www.slis.indiana.edu/media/rkcsi_2006/bryant_rkcsi_11_11.mp3 Mon, 14 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/bryant_rkcsi_11_11.mov The Rob Kling Center for Social Informatics Speaker Series (video): Socially interactive technologies (SITs), such as instant and text messaging, are beginning to redefine the social networks of today's youth. The research paradigms that we have previously used to study the relationship between youth and technology, however, do not fully capture the dynamic, social nature of these technologies. Building on previous research in computer-mediated communication, social and communication networks, and adolescent development, this presentation will call for a new line of research that focuses on the coevolution of youth's online and offline social networks, in order to better understand how technology is integrated into the lives of children and adolescents. A preliminary research project in this vein will be discussed. The project used social network data collection and analysis to look at 1) whether adolescents are creating more, but weaker ties using SITs; 2) to what extent adolescent SIT-facilitated networks overlap with friendship networks; and 3) whether SIT relationships are important for adolescents who have fewer offline peer ties. The results of the research point to a very complex dynamic between offline and SIT-based friendships, and will be used to highlight some of the challenges (and rewards) of conducting this type of research. http://www.slis.indiana.edu/media/rkcsi_2006/bryant_rkcsi_11_11.mov Mon, 14 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/dourish_rkcsi_10_14.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): In the late 1980s, Weiser suggested that the ages of mainframe and personal computing would give way to a third wave of ubiquitous computing,a confluence of embedded physical computing and pervasive wireless networking. Indeed, ubiquitous computing has become a dominant paradigm for computing research and an increasingly prevalent form for the delivery of information services. Ubiquitous computing reconfigures the relationship between people and the world around them. It does this by interpreting that world in terms of information. This is not a new phenomenon. Information systems research has, since its inception, been built upon a model of information as commodity, to be extracted, exchanged, moved, stored, and processed. The idea that the world is populated with information objects and artifacts is at the heart of the technological enterprise. However, in the context of ubiquitous computing, this model privileges certain models of spatial and environmental knowing while obscuring or devaluing others. In this talk, I will use ubiquitous computing as a lens through which to examine these concerns, and explore the consequences of the model of information as commodity. http://www.slis.indiana.edu/media/rkcsi_2006/dourish_rkcsi_10_14.ppt Thu, 10 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2005/ncs_11_07.mp3 Fall 2005 Talk Series on Network Systems (audio): The choice of a partner for marriage or cohabitation is one of the key events in the course of our lives. But the scientific study of marriage is typically pursued by two single research traditions that themselves should be wedded: demographic research with data on aggregate population-level patterns such as age at marriage and proportion ever marrying, and psychology and economics with models of the (often heterogeneous and culturally varying) individual-level processes that can end in the decision to cohabit or marry. How can the former top-down macro perspective and the latter bottom-up micro view be brought together to speak to each other? http://www.slis.indiana.edu/media/net_sci_2005/ncs_11_07.mp3 Tue, 08 Nov 2005 00:00:00 -0500 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2005/ncs_10_24.mp3 Fall 2005 Talk Series on Network Systems (audio): Finding patterns of social interaction within a population has wide-ranging applications including: disease modeling, cultural and information transmission, phylogeography, conservation, and behavioral ecology. Scientists have successfully modeled social interaction with networks. One of the intrinsic characteristics of societies is their continual change. However, majority of the social network analysis methodologies today are essentially static in that all information about the time that social interactions take place is discarded or long time series are averaged to discern the overall or long-term strength of connections. Such approach not only may give inaccurate or inexact information about the patterns in the data, but it prevents us from even asking questions about the temporal causes and consequences of social structures. I will present a new mathematical and computational framework that allows analysis of dynamic social networks addressing the time component explicitly. http://www.slis.indiana.edu/media/net_sci_2005/ncs_10_24.mp3 Tue, 25 Oct 2005 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/net_sci_2005/ncs_10_17.mp3 Fall 2005 Talk Series on Network Systems (audio): Abstract: A fundamental goal of evolutionary biology is to understand how ecological, developmental and genetic processes interact in the genesis of novel phenotypic traits. My research addresses this question by studying the ecological, developmental, and genetic underpinnings of a dramatically diverse class of traits: beetle horns. Several thousand species of beetles have evolved horns or horn-like structures, and a remarkable diversity of horn phenotypes exists both below and above the species level. At the same time beetle horns are unique, novel structures that lack obvious homologues in other taxa. In the first part of my presentation I will explore the behavioral and ecological context in which beetle horns function and evolve, and the developmental mechanisms that mediate morphological diversification in horn expression on the level of populations. In the second half I will then explore how understanding the developmental genetic regulation of horn expression can provide important insights into the ancestry of horns, as well as the mechanisms that enabled the diversification of horn phenotypes on different levels. http://www.slis.indiana.edu/media/net_sci_2005/ncs_10_17.mp3 Tue, 18 Oct 2005 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/dourish_rkcsi_10_14.mp3 The Rob Kling Center for Social Informatics Speaker Series (audio): In the late 1980s, Weiser suggested that the ages of mainframe and personal computing would give way to a third wave of "ubiquitous computing," a confluence of embedded physical computing and pervasive wireless networking. Indeed, ubiquitous computing has become a dominant paradigm for computing research and an increasingly prevalent form for the delivery of information services. Ubiquitous computing reconfigures the relationship between people and the world around them. It does this by interpreting that world in terms of information. This is not a new phenomenon. Information systems research has, since its inception, been built upon a model of information as commodity, to be extracted, exchanged, moved, stored, and processed. The idea that the world is populated with information objects and artifacts is at the heart of the technological enterprise. However, in the context of ubiquitous computing, this model privileges certain models of spatial and environmental knowing while obscuring or devaluing others. In this talk, I will use ubiquitous computing as a lens through which to examine these concerns, and explore the consequences of the model of information as commodity. http://www.slis.indiana.edu/media/rkcsi_2006/dourish_rkcsi_10_14.mp3 Mon, 17 Oct 2005 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/dourish_rkcsi_10_14.mov The Rob Kling Center for Social Informatics Speaker Series (video): In the late 1980s, Weiser suggested that the ages of mainframe and personal computing would give way to a third wave of "ubiquitous computing," a confluence of embedded physical computing and pervasive wireless networking. Indeed, ubiquitous computing has become a dominant paradigm for computing research and an increasingly prevalent form for the delivery of information services. Ubiquitous computing reconfigures the relationship between people and the world around them. It does this by interpreting that world in terms of information. This is not a new phenomenon. Information systems research has, since its inception, been built upon a model of information as commodity, to be extracted, exchanged, moved, stored, and processed. The idea that the world is populated with information objects and artifacts is at the heart of the technological enterprise. However, in the context of ubiquitous computing, this model privileges certain models of spatial and environmental knowing while obscuring or devaluing others. In this talk, I will use ubiquitous computing as a lens through which to examine these concerns, and explore the consequences of the model of information as commodity. http://www.slis.indiana.edu/media/rkcsi_2006/dourish_rkcsi_10_14.mov Mon, 17 Oct 2005 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library science, librarian, library school, information retrieval http://www.slis.indiana.edu/media/rkcsi_2006/oppenheim_rkcsi_10_07.ppt The Rob Kling Center for Social Informatics Speaker Series (slides): This talk will consider two current key areas relevant to scholarly publishing from the point of view of developments in the United Kingdom. Copyright law has for many years been steadily shifting to favour the rights of owners against those of users. Recent developments in UK copyright law will be described, together with an explanation of the tensions that have brought about the changes and an explanation of how the changes fit into rights owners' broader strategies. The implications for scholars and for librarians' daily work will be considered. In contrast to the somewhat depressing picture painted by developments in copyright law, the picture regarding Open Access and Institutional Repositories favours scholars and librarians more. A brief background to Open Access and Institutional Repositories will be followed by an account of recent initiatives in the UK, the current research being undertaken by the presenter, and some predictions regarding the future of Repositories in the UK. http://www.slis.indiana.edu/media/rkcsi_2006/oppenheim_rkcsi_10_07.ppt Wed, 12 Oct 2005 00:00:00 -0400 no School of Library and Information Science, Indiana University, information architecture, Information Science, information systems, information technology, library