5. ICWSM 2011: Barcelona, Catalonia, Spain

Full Papers

• Lada A. Adamic, Debra Lauterbach, ChunYuen Teng, Mark S. Ackerman:
  Rating Friends Without Making Enemies.
  
• Muhammad Aurangzeb Ahmad, Brian Keegan, Dmitri Williams, Jaideep Srivastava, Noshir S. Contractor:
  Trust Amongst Rogues? A Hypergraph Approach for Comparing Clandestine Trust Networks in MMOGs.
  
• Jisun An, Meeyoung Cha, P. Krishna Gummadi, Jon Crowcroft:
  Media Landscape in Twitter: A World of New Conventions and Political Diversity.
  
• Erik Aumayr, Jeffrey Chan, Conor Hayes:
  Reconstruction of Threaded Conversations in Online Discussion Forums.
  
• Lars Backstrom, Eytan Bakshy, Jon M. Kleinberg, Thomas M. Lento, Itamar Rosenn:
  Center of Attention: How Facebook Users Allocate Attention across Friends.
  
• Christian Bauckhage:
  Insights into Internet Memes.
  
• Michael S. Bernstein, Andrés Monroy-Hernández, Drew Harry, Paul André, Katrina Panovich, Gregory G. Vargas:
  4chan and /b/: An Analysis of Anonymity and Ephemerality in a Large Online Community.
  
• Dominique Cardon, Guilhem Fouetillou, Camille Roth:
  Two Paths of Glory - Structural Positions and Trajectories of Websites within Their Topical Territory.
  
• Deepayan Chakrabarti, Kunal Punera:
  Event Summarization Using Tweets.
  
• Jonathan Chang, Eric Sun:
  Location3: How Users Share and Respond to Location-Based Data on Social.
  
• Zhiyuan Cheng, James Caverlee, Kyumin Lee, Daniel Z. Sui:
  Exploring Millions of Footprints in Location Sharing Services.
  
• Michael Conover, Jacob Ratkiewicz, Matthew Francisco, Bruno Gonçalves, Filippo Menczer, Alessandro Flammini:
  Political Polarization on Twitter.
  
• Scott Counts, Kristie Fisher:
  Taking It All In? Visual Attention in Microblog Consumption.
  
• Onkar Dabeer, Prachi Mehendale, Aditya Karnik, Atul Saroop:
  Timing Tweets to Increase Effectiveness of Information Campaigns.
  
• Elizabeth M. Daly, Michael J. Muller, Liang Gou, David R. Millen:
  Social Lens: Personalization Around User Defined Collections for Filtering Enterprise Message Streams.
  
• Kushal Shailesh Dave, Rushi Bhatt, Vasudeva Varma:
  Modelling Action Cascades in Social Networks.
  
• Munmun De Choudhury, Scott Counts, Mary Czerwinski:
  Find Me the Right Content! Diversity-Based Sampling of Social Media Spaces for Topic-Centric Search.
  
• Christopher DuBois, James R. Foulds, Padhraic Smyth:
  Latent Set Models for Two-Mode Network Data.
  
• Lindsay T. Graham, Samuel D. Gosling:
  Can the Ambiance of a Place be Determined by the User Profiles of the People Who Visit It?
  
• Laura Hasler, Ian Ruthven:
  Escaping Information Poverty through Internet Newsgroups.
  
• Jonathan Hurlock, Max L. Wilson:
  Searching Twitter: Separating the Tweet from the Chaff.
  
• Adam D. I. Kramer, Cindy K. Chung:
  Dimensions of Self-Expression in Facebook Status Updates.
  
• David Laniado, Riccardo Tasso, Yana Volkovich, Andreas Kaltenbrunner:
  When the Wikipedians Talk: Network and Tree Structure of Wikipedia Discussion Pages.
  
• Kyumin Lee, Brian David Eoff, James Caverlee:
  Seven Months with the Devils: A Long-Term Study of Content Polluters on Twitter.
  
• Yu-Ru Lin, James P. Bagrow, David Lazer:
  More Voices Than Ever? Quantifying Media Bias in Networks.
  
• Avishay Livne, Matthew P. Simmons, Eytan Adar, Lada A. Adamic:
  The Party Is Over Here: Structure and Content in the 2010 Election.
  
• Sofus A. Macskassy, Matthew Michelson:
  Why do People Retweet? Anti-Homophily Wins the Day!
  
• Mikhil Masli, Reid Priedhorsky, Loren G. Terveen:
  Task Specialization in Social Production Communities: The Case of Geographic Volunteer Work.
  
• Filipe de Sá Mesquita, Denilson Barbosa:
  Extracting Meta Statements from the Blogosphere.
  
• Sean A. Munson, Paul Resnick:
  The Prevalence of Political Discourse in Non-Political Blogs.
  
• Nozomi Nori, Danushka Bollegala, Mitsuru Ishizuka:
  Exploiting User Interest on Social Media for Aggregating Diverse Data and Predicting Interest.
  
• Oded Nov, Ofer Arazy, David Anderson:
  Technology-Mediated Citizen Science Participation: A Motivational Model.
  
• Aditya Pal, Scott Counts:
  What's in a @name? How Name Value Biases Judgment of Microblog Authors.
  
• Michael J. Paul, Mark Dredze:
  You Are What You Tweet: Analyzing Twitter for Public Health.
  
• Wei Peng, Dae Hoon Park:
  Generate Adjective Sentiment Dictionary for Social Media Sentiment Analysis Using Constrained Nonnegative Matrix Factorization.
  
• Marco Pennacchiotti, Ana-Maria Popescu:
  A Machine Learning Approach to Twitter User Classification.
  
• Mathieu Perreault, Derek Ruths:
  The Effect of Mobile Platforms on Twitter Content Generation.
  
• Jacob Ratkiewicz, Michael Conover, Mark Meiss, Bruno Gonçalves, Alessandro Flammini, Filippo Menczer:
  Detecting and Tracking Political Abuse in Social Media.
  
• Raquel Recuero, Ricardo Araujo, Gabriela Zago:
  How Does Social Capital Affect Retweets?
  
• Timo Reuter, Philipp Cimiano, Lucas Drumond, Krisztian Buza, Lars Schmidt-Thieme:
  Scalable Event-Based Clustering of Social Media Via Record Linkage Techniques.
  
• Jakob Rogstadius, Vassilis Kostakos, Aniket Kittur, Boris Smus, Jim Laredo, Maja Vukovic:
  An Assessment of Intrinsic and Extrinsic Motivation on Task Performance in Crowdsourcing Markets.
  
• Salvatore Scellato, Anastasios Noulas, Renaud Lambiotte, Cecilia Mascolo:
  Socio-Spatial Properties of Online Location-Based Social Networks.
  
• N. Sadat Shami, Michael J. Muller, David R. Millen:
  Just a Click Away: Social Search and Metadata in Predicting File Discovery.
  
• Hossam Sharara, William Rand, Lise Getoor:
  Differential Adaptive Diffusion: Understanding Diversity and Learning whom to Trust in Viral Marketing.
  
• Matthew P. Simmons, Lada A. Adamic, Eytan Adar:
  Memes Online: Extracted, Subtracted, Injected, and Recollected.
  
• Tao Sun, Wei Chen, Zhenming Liu, Yajun Wang, Xiaorui Sun, Ming Zhang, Chin-Yew Lin:
  Participation Maximization Based on Social Influence in Online Discussion Forums.
  
• Zoltán Szlávik, Wojtek Kowalczyk, Martijn C. Schut:
  Diversity Measurement of Recommender Systems under Different User Choice Models.
  
• Greg Ver Steeg, Rumi Ghosh, Kristina Lerman:
  What Stops Social Epidemics?
  
• Sudha Verma, Sarah Vieweg, William J. Corvey, Leysia Palen, James H. Martin, Martha Palmer, Aaron Schram, Kenneth Mark Anderson:
  Natural Language Processing to the Rescue? Extracting "Situational Awareness" Tweets During Mass Emergency.
  
• Karen Wade, Derek Greene, Conrad Lee, Daniel Archambault, Pádraig Cunningham:
  Identifying Representative Textual Sources in Blog Networks.
  
• Jianshu Weng, Bu-Sung Lee:
  Event Detection in Twitter.
  
• Jiang Yang, Meredith Ringel Morris, Jaime Teevan, Lada A. Adamic, Mark S. Ackerman:
  Culture Matters: A Survey Study of Social Q&A Behavior.
  
• Daniel Xiaodan Zhou, Paul Resnick, Qiaozhu Mei:
  Classifying the Political Leaning of News Articles and Users from User Votes.
  

Poster Papers

• Sibel Adali, Xiaohui Lu, Malik Magdon-Ismail, Jonathan T. Purnell:
  Prominence Ranking in Graphs with Community Structure.
  
• M. Eduardo Ares, Javier Parapar, Alvaro Barreiro:
  Improving Text Clustering with Social Tagging.
  
• Sitaram Asur, Bernardo A. Huberman, Gábor Szabó, Chunyan Wang:
  Trends in Social Media: Persistence and Decay.
  
• Hila Becker, Mor Naaman, Luis Gravano:
  Beyond Trending Topics: Real-World Event Identification on Twitter.
  
• Hila Becker, Mor Naaman, Luis Gravano:
  Selecting Quality Twitter Content for Events.
  
• Joan-Isaac Biel, Oya Aran, Daniel Gatica-Perez:
  You Are Known by How You Vlog: Personality Impressions and Nonverbal Behavior in YouTube.
  
• Johan Bollen, Huina Mao, Alberto Pepe:
  Modeling Public Mood and Emotion: Twitter Sentiment and Socio-Economic Phenomena.
  
• Petter Bae Brandtzæg, Oded Nov:
  Facebook Use and Social Capital - A Longitudinal Study.
  
• Michael J. Brzozowski, Daniel M. Romero:
  Who Should I Follow? Recommending People in Directed Social Networks.
  
• Ovidiu Dan, Junlan Feng, Brian D. Davison:
  A Bootstrapping Approach to Identifying Relevant Tweets for Social TV.
  
• Gianluca Demartini, Stefan Siersdorfer, Sergiu Chelaru, Wolfgang Nejdl:
  Analyzing Political Trends in the Blogosphere.
  
• José Luís Devezas, Sérgio Nunes, Cristina Ribeiro:
  Using the H-Index to Estimate Blog Authority.
  
• Albert Feller, Matthias Kuhnert, Timm Oliver Sprenger, Isabell M. Welpe:
  Divided They Tweet: The Network Structure of Political Microbloggers and Discussion Topics.
  
• Benjamin Fields, Christophe Rhodes, Mark d'Inverno:
  Automatic Group-Interactive Radio Using Social-Networks of Musicians.
  
• Lisa M. Gandy, Kristian J. Hammond:
  Creating Conversations: An Automated Dialog System.
  
• Ullas Gargi, Wenjun Lu, Vahab S. Mirrokni, Sangho Yoon:
  Large-Scale Community Detection on YouTube for Topic Discovery and Exploration.
  
• Daniel Gayo-Avello, Panagiotis Takis Metaxas, Eni Mustafaraj:
  Limits of Electoral Predictions Using Twitter.
  
• Barbara Gligorijevic, Benjamin Leong:
  Trust, Reputation and the Small Firm: Building Online Brand Reputation for SMEs.
  
• Michelle L. Gregory, Dave W. Engel, Eric Belanga Bell, Andy Piatt, Scott Dowson, Andrew J. Cowell:
  Automatically Identifying Groups Based on Content and Collective Behavioral Patterns of Group Members.
  
• Georg Groh, Jan Hauffa:
  Characterizing Social Relations Via NLP-Based Sentiment Analysis.
  
• Marco Guerini, Carlo Strapparava, Gözde Özbal:
  Exploring Text Virality in Social Networks.
  
• Alexander Hanna, Ben Sayre, Leticia Bode, JungHwan Yang, Dhavan V. Shah:
  Mapping the Political Twitterverse: Candidates and Their Followers in the Midterms.
  
• Sanda M. Harabagiu, Andrew Hickl:
  Relevance Modeling for Microblog Summarization.
  
• Lichan Hong, Gregorio Convertino, Ed H. Chi:
  Language Matters In Twitter: A Large Scale Study.
  
• Tereza Iofciu, Peter Fankhauser, Fabian Abel, Kerstin Bischoff:
  Identifying Users Across Social Tagging Systems.
  
• Ming Jiang, Tao Dong, Yung-Ju Chang:
  Structure and Reciprocity in Technology-Centered Q&A Communities.
  
• Shafiq R. Joty, Giuseppe Carenini, Gabriel Murray, Raymond T. Ng:
  Supervised Topic Segmentation of Email Conversations.
  
• Elham Khabiri, James Caverlee, Chiao-Fang Hsu:
  Summarizing User-Contributed Comments.
  
• Efthymios Kouloumpis, Theresa Wilson, Johanna Moore:
  Twitter Sentiment Analysis: The Good the Bad and the OMG!
  
• James Lanagan, Alan F. Smeaton:
  Using Twitter to Detect and Tag Important Events in Sports Media.
  
• Yelena Mejova, Padmini Srinivasan:
  Exploring Feature Definition and Selection for Sentiment Classifiers.
  
• Mahalia Miller, Conal Sathi, Daniel Wiesenthal, Jure Leskovec, Christopher Potts:
  Sentiment Flow Through Hyperlink Networks.
  
• Alan Mislove, Sune Lehmann, Yong-Yeol Ahn, Jukka-Pekka Onnela, J. Niels Rosenquist:
  Understanding the Demographics of Twitter Users.
  
• Ramesh Nallapati, Xiaolin Shi, Daniel A. McFarland, Jure Leskovec, Daniel Jurafsky:
  LeadLag LDA: Estimating Topic Specific Leads and Lags of Information Outlets.
  
• François Nel, Marie-Jeanne Lesot, Thomas Delavallade, Philippe Capet:
  Information Propagation on the Web: Data Extraction, Modeling and Simulation.
  
• Thin Nguyen, Dinh Q. Phung, Brett Adams, Svetha Venkatesh:
  Towards Discovery of Influence and Personality Traits through Social Link Prediction.
  
• Anastasios Noulas, Salvatore Scellato, Cecilia Mascolo, Massimiliano Pontil:
  An Empirical Study of Geographic User Activity Patterns in Foursquare.
  
• Aditya Pal, Jaya Kawale:
  Connecting Mutually Influencing Bloggers.
  
• Sharoda A. Paul, Lichan Hong, Ed H. Chi:
  Is Twitter a Good Place for Asking Questions? A Characterization Study.
  
• Adam Perer, Ido Guy, Erel Uziel, Inbal Ronen, Michal Jacovi:
  Unearthing People from the SaND: Relationship Discovery with Social Media in the Enterprise.
  
• Sasa Petrovic, Miles Osborne, Victor Lavrenko:
  RT to Win! Predicting Message Propagation in Twitter.
  
• Joseph J. Pfeiffer III, Jennifer Neville:
  Methods to Determine Node Centrality and Clustering in Graphs with Uncertain Structure.
  
• Ana-Maria Popescu, Marco Pennacchiotti:
  "Dancing with the Stars, " NBA Games, Politics: An Exploration of Twitter Users' Response to Events.
  
• Delip Rao, Michael J. Paul, Clayton Fink, David Yarowsky, Timothy Oates, Glen Coppersmith:
  Hierarchical Bayesian Models for Latent Attribute Detection in Social Media.
  
• Stéphane Raux, Nils Grünwald, Christophe Prieur:
  Describing the Web in less than 140 Characters.
  
• Daniel Mauricio Romero, Brendan Meeder, Vladimir Barash, Jon M. Kleinberg:
  Maintaining Ties on Social Media Sites: The Competing Effects of Balance, Exchange, and Betweenness.
  
• Diego Sáez-Trumper, David F. Nettleton, Ricardo A. Baeza-Yates:
  High Correlation between Incoming and Outgoing Activity: A Distinctive Property of Online Social Networks?
  
• Fahad Shah, Gita Reese Sukthankar:
  Using Network Structure to Identify Groups in Virtual Worlds.
  
• David A. Shamma, Jude Yew, Lyndon Kennedy, Elizabeth F. Churchill:
  Viral Actions: Predicting Video View Counts Using Synchronous Sharing Behaviors.
  
• Yue Shi, Pavel Serdyukov, Alan Hanjalic, Martha Larson:
  Personalized Landmark Recommendation Based on Geotags from Photo Sharing Sites.
  
• Mansoureh Takaffoli, Farzad Sangi, Justin Fagnan, Osmar R. Zaïane:
  MODEC - Modeling and Detecting Evolutions of Communities.
  
• Jaime Teevan, Meredith Ringel Morris, Katrina Panovich:
  Factors Affecting Response Quantity, Quality, and Speed for Questions Asked Via Social Network Status Messages.
  
• Hang Maxime Ung:
  Social Influence, Popularity and Interestingness of Online Contents.
  
• David Urbansky, Sandro Reichert, Klemens Muthmann, Daniel Schuster, Alexander Schill:
  An Optimized Web Feed Aggregation Approach for Generic Feed Types.
  
• Shanchan Wu, Louiqa Raschid, William Rand:
  Future Link Prediction in the Blogosphere for Recommendation.
  
• Shaomei Wu, Chenhao Tan, Jon M. Kleinberg, Michael W. Macy:
  Does Bad News Go Away Faster?
  
• Lexing Xie, Apostol Natsev, John R. Kender, Matthew L. Hill, John R. Smith:
  Tracking Visual Memes in Rich-Media Social Communities.
  

Demonstration Papers

• Hila Becker, Feiyang Chen, Dan Iter, Mor Naaman, Luis Gravano:
  Automatic Identification and Presentation of Twitter Content for Planned Events.
  
• Dana Diminescu, Renault Matthieu, Bourgeois Mehdi, Mathieu Jacomy:
  Digital Diasporas Atlas Exploration and Cartography of Diasporas in Digital Networks.
  
• Charles C. Earl, Amos Johnson, Kaakpema Yelpaala, Travis Good:
  Making Project Team Recommendations from Online Information Sources.
  
• Shamanth Kumar, Geoffrey Barbier, Mohammad Ali Abbasi, Huan Liu:
  TweetTracker: An Analysis Tool for Humanitarian and Disaster Relief.
  
• Timm Oliver Sprenger:
  TweetTrader.net: Leveraging Crowd Wisdom in a Stock Microblogging Forum.
  
• David Urbansky, Klemens Muthmann, Lars Kreisz, Alexander Schill:
  Areca: Online Comparison of Research Results.
  

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