General Chair

Marti Hearst
University of California, Berkeley

Program Chair

William Cohen
Carnegie Mellon University
Samuel Gosling
Univ of Texas, Dept of Psychology

Publicity Chair

Nicolas Nicolov
J.D.Power and Associates, McGraw-Hill

Sponsorship Chair

Matthew Hurst

Tutorials Chair

Chris Diehl
Lawrence Livermore National Labs

Data Challenge Chairs

Ian Soboroff
Akshay Java


Ramnath Balasubramanyan
Carnegie Mellon University





Call for Papers




Hotel Info

Important Dates


Accepted Papers

Invited Speakers


Data Challenge


ICWSM 2009

ICWSM 2008

ICWSM 2007

Videolectures from 2008

Videolectures from 2009

4th Int'l AAAI Conference on Weblogs and Social Media

May 23-26, 2010, George Washington University, Washington, DC

Sponsored by the Association for the Advancement of Artificial Intelligence.


May 23rd (Sun) || May 24th (Mon) || May 25th (Tue) || May 26th (Wed)


Sunday, May 23, 2010 @ Rooms 307 and 308

9.00-12.00 The Social Semantic Web: How Web 2.0 and the Semantic Web Can Strengthen Each Other
   John Breslin and Alexandre Passant (NUI Galway, Ireland)
Introduction to Social Media Network Analysis
   Marc Smith (Connected Action) and Derek Hansen (University of Maryland)
13:00 - 16:00 Large-Scale Social Media Analytics with Hadoop
   Jake Hoffman (Yahoo!)
The Social Psychology of Social Media through the Lens of Text Analysis
   Cindy Chung and James W. Pennebaker (University of Texas - Austin)

Technical Program - Accepted Papers

All papers are online here
Presenters are shown in bold

Monday, May 24, 2010 @ Grand Ballroom

8.45-9.00 Opening Remarks
   Marti Hearst
9.00-10.00 Keynote: Designing Online Communities from Theory
   Bob Kraut, Carnegie Mellon University
10:00-10:30 Break
Influence and Composition in Social Networks
Session Chair: Nicole Ellison
10.30-10.55 20 Sequential Influence Models in Social Networks
   Dan Cosley, Daniel Huttenlocher, Jon Kleinberg, Xiangyang Lan, Siddharth Suri
10.55-11.20 47 ePluribus : Ethnicity on Social Networks - Best Paper Award
   Jonathan Chang, Itamar Rosenn, Lars Backstrom, Cameron Marlow
11.20-11.45 125 Who Acquires Friends Through Social Media and Why? “Rich Get Richer” versus “Seek and Ye Shall Find”
   Zeynep Tufekci
11.45-12.10 66 To be a star is not only metaphoric: from popularity to social linkage
   Alina Stoica, Thomas Couronne, Jean-Samuel Beuscart
12:10-1:30 Lunch
Dynamics and Diffusion in Social Networks
Session Chair: Winter Mason
1.30-1.55 140 The Social Dynamics of Economic Activity in a Virtual World - Best Paper Award
   Eytan Bakshy, Matthew Simmons, David Huffaker, ChunYuen Teng, Lada Adamic
1.55-2.20 43 Your Brain on Facebook: Neuropsychological Associations with Social Versus other Media
   Kristie Fisher, Scott Counts
2.20-2.45 143 Towards Social Causality: An Analysis of Interpersonal Relations in Online Blogs and Forums
   Roxana Girju
2.45-3.10 19 How Does the Data Sampling Strategy Impact the Discovery of Information Diffusion in Social Media?
   Munmun De Choudhury, Yu-Ru Lin, Hari Sundaram, K. Selcuk Candan, Lexing Xie, Aisling Kelliher
3.10-3.35 124 Tagging Over Time: A Longitudinal Study of the Role of Attention, Network Density, and Motivations
   Paul Russo, Oded Nov
3:35-4:00 Break
Microblogging 1
Session Chair: Jason Kessler
4.00-4.25 155 Microblogging Inside and Outside the Workplace
   Kate Ehrlich, N. Sadat Shami
4.25-4.50 38 Measuring User Influence on Twitter: The Million Follower Fallacy
   Meeyoung Cha, Hamed Haddadi, Fabricio Benevenuto, and Krishna P. Gummad
4.50-5.15 94 The Directed Closure Process in Information Networks with an Analysis of Link Formation on Twitter
   Daniel Romero, Jon Kleinberg
5.15-5.40 122 Characterizing Microblogs with Topic Models
   Daniel Ramage, Susan Dumais, Dan Liebling
6.00-10.00 Reception - Hippodrome, 5th Floor, Marvin Center

Tuesday, May 25, 2010 @ Grand Ballroom

9.00-10.00 Invited Symposium: Research on Social Media in the Social Sciences - Chair: Marc Smith

9:00 Words as reflections of psychological state
 James W. Pennebaker
9:20 Got Facebook? Investigating What's Social About Social Media
 S. Craig Watkins
9:40 Researching interaction in social media: Examining online and offline communication processes in online dating and social network sites
 Nicole B. Ellison
10.00-10.30 Break
Microblogging 2
Session Chair: danah boyd
10.30-10.55 17 Predicting Elections with Twitter: What 140 Characters Reveal about Political Sentiment
   Andranik Tumasjan, Timm Sprenger, Philipp Sandner, Isabell Welpe
10.55-11.20 148 From Tweets to Polls: Linking Text Sentiment to Public Opinion Time Series
   Brendan O'Connor, Ramnath Balasubramanyan, Bryan R. Routledge, Noah Smith
11.20-11.45 75 Information Contagion: an Empirical Study of the Spread of News on Digg and Twitter Social Networks
   Kristina Lerman, Rumi Ghosh
11.45-12.10 30 Tweeting from the Town Square: Measuring Geographic Local Networks
   Sarita Yardi, danah boyd
12.10-1.30 Lunch
1.30-2.30 Panel Discussion - US Government and Social Media
Macon Phillips: White House, Don Burke: CIA, Haym Hirsh: NSF
2.30-3.00 Break
Analysis of Social Network Usage
Session Chair: Matt Hurst
3.00-3.25 89 Increasing energy saving behaviors via social networks
   Jennifer Mankoff, Susan R. Fussell, Rachel Glaves, Michael Johnson, Deanna Matthews, Scott Matthews, Robert McGuire, Robert Thompson, Aubrey Shick, Leslie Setlock
3.25-3.50 142 Governance in Social Media: A case study of the Wikipedia promotion process
   Jure Leskovec, Daniel Huttenlocher, Jon Kleinberg
3.50-4.15 10 Activity Lifespan: An Analysis of User Survival Patterns in Online Knowledge Sharing Communities
   Jiang Yang, Xiao Wei, Mark Ackerman, Lada Adamic
4.15-4.40 39 Responses to remixing on a social media sharing website
   Benjamin Mako Hill, Andrés Monroy-Hernández, Kristina R. Olson
4.40-5.30 Poster Madness
6.00-10.00 Poster and Demos Reception - Continental Ballroom

Wednesday, May 26, 2010 @ Continental Ballroom

9.00-10.00 Keynote: Behavioral Experiments in Strategic Networks
   Michael Kearns, University of Pennsylvania
10.00-10.30 Break
Sentiment and Language Analysis
Session Chair: Claire Cardie
10.30-10.55 35 ICWSM - A Great Catchy Name: Semi-Supervised Recognition of Sarcastic Sentences in Product Reviews
   Oren Tsur, Dmitry Davidov, Ari Rappoport
10.55-11.20 105 Widespread Worry and the Stock Market
   Eric Gilbert, Karrie Karahalios
11.20-11.45 119 Star Quality: Aggregating Reviews to Rank Products and Merchants
   Mary McGlohon, Natalie Glance, Zach Reiter
11.45-12.10 132 Study of Static Classification of Social Spam Profiles in MySpace
   Danesh Irani, Steve Webb, Calton Pu
12.10-12.15 Closing remarks
12.15-1.30 Lunch

Data Challenge Workshop

Wednesday, May 26, 2010 @ Continental Ballroom

2.00 - 3.00 Welcome and Introduction
   Ian Soboroff
Invited Keynote Panel
   Representatives of the Library of Congress discuss Twitter archive at LOC
3.00 - 3.45 News Detection in the Blogosphere: Two Approaches Based on Structure and Content Analysis
   Leandro Franco, Hideki Kawai
Statistical Measure of the Effectiveness of the Open Editing Model of Wikipedia
   Sara Javanmardi, Yasser Ganjisaffar, Cristina Lopes, Pierre Baldi
3.45-4.00 Break
4.00 - 4.45 The ICWSM 2010 JDPA Sentiment Corpus for the Automotive Domain
   Jason S. Kessler, Miriam Eckert, Lyndsie Clark, Nicolas Nicolov
Extracting Information Networks from the Blogosphere: State-of-the-Art and Challenges
   Filipe Mesquita, Yuval Merhav, Denilson Barbosa
4.45 - 5.30 Invited Panel on Data-Driven Research Challenges in the Social Media industry
   Panelists include representatives from Facebook and others

Sponsored by the Association for the Advancement of Artificial Intelligence. For more info: