Robert Ackland SONIC Speaker Series

On Friday, October 7, from 2:00-3:00 p.m. Australian National University Fellow, Robert Ackland will be giving a presentation in Room 1-483 of Frances Searle Building on the Northwestern University Evanston Campus.
This presentation provides an overview of empirical research into WWW hyperlink networks.

Social scientific research in this area is classified into three broad approaches, where hyperlink networks are studied as citation networks, issue networks and social networks, respectively. The disciplinary foundations, underlying assumptions and examples of research for each approach are discussed. The presentation then turns to available tools for conducting hyperlink network research, focusing on three particular tools that are associated with the above approaches: SocSciBot, Issuecrawler, and the Virtual Observatory for the Study of Online Networks (VOSON) which was created by the presenter. The three tools are compared in the context of a particular research exercise: constructing the hyperlink network of environmental activist organizations. This presentation concludes with a brief outline of the VOSON project.

Robert Ackland is a Fellow at the Australian National University, where he conducts empirical social science research into online social and organizational networks. He leads the VOSON project (http://voson.anu.edu.au), coordinates the ANU’s Master of Social Research programme and teaches on the social science of the Internet and online research methods. Robert has degrees in economics from the University of Melbourne, Yale University (where he was a Fulbright Scholar) and the ANU, where he gained his PhD in 2001.

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Comparing Webcrawlers for the Social Sciences


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Yuval Kalish Workshop

Yuval Kalish, an assistant professor in the Department of Management of Tel Aviv University will be leading a workshop on Wednesday, September 14 from 2:00-5:30 pm in Frances Searle, Room 1.459.
This workshop provides a hands-on tutorial on how to fit Exponential Random Graph (ERG) Models for social selection using Pnet.

If you plan on attending, please RSVP to Marilyn Logan by 5pm September 13.

ERG models have been referred to as the most promising technique for the modeling of social networks (Snijders, 2007), and has wide applications in the area of organizational studies and communication studies. Topics include: the logic of ERG models, Parameter selection and estimation, parameter interpretation, Goodness of Fit, and troubleshooting convergence issues.
We will discuss Multivariate ERG models if time permits and there is participant interest. Participants are requested to bring their laptops after they have downloaded pnet from: www.sna.unimelb.edu.au/pnet/pnet.html and made sure that it works on their computer.

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Maria Binz-Scharf SONIC Speaker Series

Maria Binz-ScharfProfessor Maria Binz-Scharf will be presenting “Collaborative Production of Scientific Knowledge”  on Thursday, September 15, 2011 10:30-11:30 a.m.

Research scientists have become increasingly dependent on collaborations across laboratories and organizations to maintain their productivity. However, growing specialization of individual laboratories works against a current drive towards understanding systems in the sciences. Consequently, there is a tension between the rising importance of collaborative efforts and the practical and structural challenges in establishing and managing such collaborations in the quest to understand our world. Drawing on ethnographic case studies of three academic research labs, we illustrate how scientific knowledge is produced in collaborations that are established and maintained through virtual organizations (VOs). As much as VOs can facilitate scientific work across time and space, they do not eradicate the social aspects (e.g. trust among scientists, institutional limitations, laboratory cultures) to scientific knowledge production.

Maria Binz-Scharf is Associate Professor of Management at the City College of CUNY, and Visiting Researcher at Xerox PARC. Her research examines how individuals search for and share knowledge to accomplish work. In particular, she is interested in understanding the role technology plays in processes of knowledge sharing and innovation. With the support of grants from the NSF and NIH, she has studied the knowledge networks of biologists, primary care physicians, and DNA forensic scientists.

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Collaborative Production of Scientific Knowledge


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Yuval Kalish SONIC Speaker Series

Visiting scholar Yuval Kalish will be presenting “Till Stress Do Us Part: Linking Communication networks, Stress and Voluntary Exit in Extreme Contexts”  on Monday, August 29, 2011 10:30-11:30 a.m.

Research has linked stress with various withdrawal behaviors, including voluntary exit from groups. research also demonstrated that stress is contagious – it spreads among group members. However, there is no detailed theory or study of the mechanisms by which stress is disseminated by individuals to others in a group. We discuss and empirically test four stress-related processes that explain why some individuals voluntarily leave their group.

Two hundred and seventy-eight individuals (17 groups) in a unique military setting were measured for their communication-network structure and individual stress at three time-points. Using HLM and stochastic actor-oriented models for social networks, we found support for stress-related withdrawal and selection, and for stress-contagion. Managerial implications are discussed.

Yuval Kalish is assistant professor at the Department of Management, Tel Aviv University. His research focuses on the relationship between individual attributes, networks structures and outcomes within and between organizations. He focuses on the modeling of social networks using Exponential Random Graph models (for which he jointly received the most cited paper award in Social Networks) and other analytic techniques. He teaches courses on leadership, conflict management, statistics and network analysis.

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Till Stress Do Us Part


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MTS studies featured on Army Research Lab Blog

The work of several SONIC researchers including Brooke Foucault Welles, and Tony Vashevko has been featured in the Army Research Lab’s Network Science-Collaborative Technology Alliance Blog. The information can be found after the jump, halfway down the blog under “Multi-Team Systems Simulation”.
Whether it’s emergency relief due to natural disasters or humanitarian aid in war torn regions, there are situations where international organizations, first responders, and military personnel need to collaborate effectively on teams in stressful situations. Researchers at Northwestern University and the University of Illinois at Urbana-Champaign will use the Multi-team System Simulation – or MTS Platform – to gain insight on how network parameters can be configured to better allow small teams to coordinate in such emergency situations.

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SONIC hosts Take Our Daughters and Sons To Work Day visitors

The SONIC lab was bustling on April 28 with children visiting campus for Take Our Daughters and Sons to Work Day. SONIC led two workshops designed to teach children, ages 10-16, basic concepts in network science. The kids explored network concepts such as degree, balance, and brokerage by examining Harry Potter’s friendship network. Then, they had a chance to apply their newly-learned skills when they constructed their own friendship networks out of M&Ms and pretzel sticks. The workshops were a hit, and we’re hoping to see some of the participants back in a few years in the classes of 2016-2022!

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Manuel Castells From WikiLeaks to Wiki-revolutions

Manuel CastellsThe Media, Technology and Society Speaker Series presents:
From WikiLeaks to Wiki-Revolutions: Internet and the Culture of Freedom (video)
Manuel Castells, University of Southern California

Friday, March 4, 2011, 4-5pm
1-421 Frances Searle Building, Northwestern University

Manuel Castells is University Professor and the Wallis Annenberg Chair in Communication Technology and Society at the University of Southern California, Los Angeles, as well as Professor of Sociology at the Open University of Catalonia, Barcelona. He is Distinguished Visiting Professor of Technology and Society at MIT, and Distinguished Visiting Professor of Internet Studies at Oxford University. He was Professor of Planning and of Sociology at the University of California, Berkeley from 1979 to 2003. He has published 24 books including the trilogy The Information Age: Economy, Society, and Culture (Blackwell, 1996-2000), translated into 22 languages, and The Internet Galaxy (OUP, 2001), translated into 17 languages. He is a fellow of the American Academy of Political and Social Science, of the Academia Europea, of the British Academy, of the Mexican Academy, and of the Spanish Royal Academy of Economics. He has received 14 honorary doctorates. He was a founding member of the European Research Council. He is a member of the Board of the European Institute of Innovation and Technology (EIT) and a member of the Scholars’ Council at the U.S. Library of Congress.

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Discover Text Software Training: Unlock the Power of Text

Friday, February 4, 9-1Stuart Shulman1 a.m.

Location: Frances Searle Building, Room 1.459 (SONIC Conference Room)

Discover Text Software Training: Unlock the Power of Text: A PhD-holding Political Scientist, Stu knows the importance of easy to use, powerful, text analytic software. As founder of a technology start up (http://texifter.com) and the QDAP labs (http://www.umass.edu/qdap), Stu’s work advances text mining and natural language processing research. His software trainings link these worlds via straightforward and easy to understand explanations of software features that can be tailored for all experience levels and project types.

Dr. Stuart W. Shulman is founder & CEO of Texifter, LLC and an Assistant Professor of Political Science at the University of Massachusetts Amherst. He is the founding Director of the Qualitative Data Analysis Program (QDAP) at the University of Pittsburgh and at UMass Amherst, as well as Associate Director of the National Center for Digital Government.

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Stuart Shulman SONIC Speaker Series

Stuart ShulmanStuart Shulman presents  “Measuring Validity in Annotation” Friday, February 4, 2011.Tools for reviewing, coding, and retrieving text found in qualitative data analysis packages carry with them no particular attributes for ensuring the reliability or validity of the recorded observations. Based on more than 10 years of multidisciplinary experience doing qualitative research, this presentation guides researchers through aspects of coder validity and reliability.

Dr. Stuart W. Shulman is founder & CEO of Texifter, LLC and an Assistant Professor of Political Science at the University of Massachusetts Amherst. He is the founding Director of the Qualitative Data Analysis Program (QDAP) at the University of Pittsburgh and at UMass Amherst, as well as Associate Director of the National Center for Digital Government.

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Measuring Validity in Annotation


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