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Gibson and Spiro to Present HEROIC Research at Sunbelt 2013

Published on May 15, 2013 by

Team members Ben Gibson and Emma Spiro will head to Hamburg, Germany next week to present preliminary findings from HEROIC projects at Sunbelt XXXIII. The annual conference is sponsored by the International Network for Social Network Analysis.

Gibson will speak on recent work that introduces a method for estimating the size of active user populations in an online environment over short time intervals (e.g., minutes to hours). Using a variant of the capture-recapture method, Gibson et al. can estimate the total population of those who are active in online environments such at Twitter. Preliminary findings suggest that this method is an effective and useful approach for estimating active user population dynamics in a variety of online social network settings.

Spiro will present an exploration of tie dynamics in online social networks.   Many social systems now facilitate rapid re-organization (creation and dissolution) of social ties over short time scales on the order of days. Spiro et al. examine tie decay following instances of mass convergence of attention (i.e. “degree spikes”) on particular users of a popular microblogging service. They do so for randomly sampled users as well as a population of targeted emergency management organizations.

 
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Spiro to Join University of Washington

Published on May 15, 2013 by

NCASD lab member Emma Spiro has accepted a tenure track assistant professor position at the University of Washington Information School starting Fall 2013. Congratulations, Emma!

 
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Second Report on Twitter Activity During Boston Bombing

Published on May 14, 2013 by

The HEROIC team has released a second online research highlight that focuses on Twitter activity during the recent events in Boston, MA. This second report explores relational and conversational aspects of messages posted by official government accounts during the event.

Please see the online research highlight here.

Sutton, J., Spiro, E., Johnson, B., Fitzhugh, S., and Butts, C. (2013). “Tweeting Boston: The Influence of Microstructure in Broadcasting Messages through Twitter.” Online Research Highlight. http://heroicproject.org

 
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New Research Highlight on the Boston Bombing

Published on May 10, 2013 by

In recent work the HEROIC team examines the behavior of government organizations during the recent bombing at the Boston Marathon.  In particular the team looks at the drastic increase in followers that these government accounts experienced during the week of the bombing and subsequent events.

Please see the online research highlight here.

Sutton, J., Spiro, E., Johnson, B., and Butts, C. (2012). “Following the Bombing.” Online Research Highlight. http://heroicproject.org

 
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Almquist Awarded the Mathematical Sociology Outstanding Dissertation in Progress Award

Published on May 9, 2013 by

Lab member Zack Almquist has been awarded the Mathematical Sociology Outstanding Dissertation in Progress Award from the American Sociological Association’s Section on Mathematical Sociology for his dissertation entitled “Vertex Processes in Social Networks” (advised by lab PI Carter Butts).

 
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Almquist Speaks at Center for Studies in Demography and Ecology Seminar Series

Published on May 9, 2013 by

Lab member Zack Almquist gave a talk, “US Census Spatial and Demographic Data in R with Applications to Spatially Embedded Social Networks,” in the Center for Studies in Demography and Ecology Seminar Series, University of Washington, Seattle.

 
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Almquist Accepts Position at University of Minnesota

Published on May 9, 2013 by

Lab member Zack Almquist has accepted a tenure track assistant professor position joint in the Department of Sociology and the School of Statistics at the University of Minnesota starting Fall 2013. Congratulations, Zack!

 
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Spiro to Join MSR for the Summer

Published on May 3, 2013 by

NCASD lab member Emma Spiro will be interning at Microsoft Research this summer. Spiro will be working with the team at Future Social Experiences (FUSE) Labs in Redmond, WA.

 
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Sutton Speaks at TAMU

Published on April 24, 2013 by

HEROIC PI Jeannette Sutton spoke at the Industrial and Systems Engineering Seminar at Texas A&M University on Monday, April 22nd, 2013. The abstract of her talk is below.

Abstract:

The speed with which our society is enjoying technological change, including the growth of networked communications, lead many to appreciate the possibility for innovative uses of online communication tools.  Social media represent one set of channels and tools for use in disaster preparedness, response, and recovery by both members of the public and responders alike.  As a source of “big data,” it also brings challenges and opportunities for researchers and engineers.  This presentation will provide a historical narrative of some key social media events along the disaster timeline, and describe strategies for collecting, approaching, and analyzing Twitter data in order to create predictive models of social behaviors during the warning phase of a disaster.

 

 
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Spiro, Acton, and Butts Published in Social Networks

Published on March 11, 2013 by

Emma Spiro, Ryan Acton and Carter Butts published an article, “Extended structure of mediation: Re-examining brokerage in dynamics networks,” in the upcoming issue of Social Networks. Their article revisits the concept of brokerage in social networks, elaborating on the concept of brokerage as a process. Spiro et al. develop a framework for measuring brokerage opportunities in dynamic relational data. Using data on emergent inter-organizational collaborations, they employ the dynamic brokerage framework to examine the relationship between organizational attributes and coordination in the evolving network. Comparing the findings of the process-based definition with traditional, static approaches, Spiro et al. identify important dimensions of organizational action that would be missed by the latter approach.

Their article can be found online here.

 
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