Full Papers
| Rating Friends Without Making Enemies | |
| Lada A. Adamic, Debra Lauterbach, Chun-Yuen Teng, Mark Ackerman |
| Trust Amongst Rogues? A Hypergraph Approach for Comparing Clandestine Trust Networks in MMOGs | |
| Muhammad Aurangzeb Ahmad, Brian Keegan, Dmitri Williams, Jaideep Srivastava, Noshir Contractor |
| Media Landscape in Twitter: A World of New Conventions and Political Diversity | |
| Jisun An, Meeyoung Cha, Krishna Gummadi, Jon Crowcroft |
| Reconstruction of Threaded Conversations in Online Discussion Forums | |
| Erik Aumayr, Jeffrey Chan, Conor Hayes |
| Center of Attention: How Facebook Users Allocate Attention across Friends | |
| Lars Backstrom, Eytan Bakshy, Jon M. Kleinberg, Thomas M. Lento, Itamar Rosenn |
| Insights into Internet Memes | |
| Christian Bauckhage |
| 4chan and /b/: An Analysis of Anonymity and Ephemerality in a Large Online Community | |
| Michael Scott Bernstein, Andrés Monroy-Hernández, Drew Harry, Paul André, Katrina Panovich, Greg Vargas |
| Two Paths of Glory — Structural Positions and Trajectories of Websites within Their Topical Territory | |
| Dominique Cardon, Guilhem Fouetillou, Camille Roth |
| Event Summarization Using Tweets | |
| Deepayan Chakrabarti, Kunal Punera |
| Location3: How Users Share and Respond to Location-Based Data on Social | |
| Jonathan Chang, Eric Sun |
| Exploring Millions of Footprints in Location Sharing Services | |
| Zhiyuan Cheng, James Caverlee, Kyumin Lee, Daniel Z. Sui |
| Political Polarization on Twitter | |
| Michael D. Conover, Jacob Ratkiewicz, Matthew Francisco, Bruno Goncalves, Filippo Menczer, Alessandro Flammini |
| Taking It All In? Visual Attention in Microblog Consumption | |
| Scott Counts, Kristie Fisher |
| Timing Tweets to Increase Effectiveness of Information Campaigns | |
| Onkar Dabeer, Prachi Mehendale, Aditya Karnik, Atul Saroop |
| Social Lens: Personalization Around User Defined Collections for Filtering Enterprise Message Streams | |
| Elizabeth M. Daly, Michael Muller, Liang Gou, David R. Millen |
| Modelling Action Cascades in Social Networks | |
| Kushal Shailesh Dave, Rushi Bhatt, Vasudeva Varma |
| Find Me the Right Content! Diversity-Based Sampling of Social Media Spaces for Topic-Centric Search | |
| Munmun De Choudhury, Scott Counts, Mary Czerwinski |
| Latent Set Models for Two-Mode Network Data | |
| Christopher DuBois, James Foulds, Padhraic Smyth |
| Can the Ambiance of a Place be Determined by the User Profiles of the People Who Visit It? | |
| Lindsay T. Graham, Samuel D. Gosling |
| Escaping Information Poverty through Internet Newsgroups | |
| Laura Hasler, Ian Ruthven |
| Searching Twitter: Separating the Tweet from the Chaff | |
| Jonathan Hurlock, Max L. Wilson |
| Dimensions of Self-Expression in Facebook Status Updates | |
| Adam D. I. Kramer, Cindy K. Chung |
| When the Wikipedians Talk: Network and Tree Structure of Wikipedia Discussion Pages | |
| David Laniado, Riccardo Tasso, Yana Volkovich, Andreas Kaltenbrunner |
| Seven Months with the Devils: A Long-Term Study of Content Polluters on Twitter | |
| Kyumin Lee, Brian David Eoff, James Caverlee |
| More Voices Than Ever? Quantifying Media Bias in Networks | |
| Yu-Ru Lin, James P. Bagrow, David Lazer |
| The Party Is Over Here: Structure and Content in the 2010 Election | |
| Avishay Livne, Matthew Simmons, Eytan Adar, Lada Adamic |
| Why do People Retweet? Anti-Homophily Wins the Day! | |
| Sofus A. Macskassy, Matthew Michelson |
| Task Specialization in Social Production Communities: The Case of Geographic Volunteer Work | |
| Mikhil N. Masli, Reid Priedhorsky, Loren Terveen |
| Extracting Meta Statements from the Blogosphere | |
| Filipe Mesquita, Denilson Barbosa |
| The Prevalence of Political Discourse in Non-Political Blogs | |
| Sean A. Munson, Paul Resnick |
| Exploiting User Interest on Social Media for Aggregating Diverse Data and Predicting Interest | |
| Nozomi Nori, Danushka Bollegala, Mitsuru Ishizuka |
| Technology-Mediated Citizen Science Participation: A Motivational Model | |
| Oded Nov, Ofer Arazy, David Anderson |
| What's in a @name? How Name Value Biases Judgment of Microblog Authors | |
| Aditya Pal, Scott Counts |
| You Are What You Tweet: Analyzing Twitter for Public Health | |
| Michael J. Paul, Mark Dredze |
| Generate Adjective Sentiment Dictionary for Social Media Sentiment Analysis Using Constrained Nonnegative Matrix Factorization | |
| Wei Peng, Dae Hoon Park |
| A Machine Learning Approach to Twitter User Classification | |
| Marco Pennacchiotti, Ana-Maria Popescu |
| The Effect of Mobile Platforms on Twitter Content Generation | |
| Mathieu Perreault, Derek Ruths |
| Detecting and Tracking Political Abuse in Social Media | |
| Jacob Ratkiewicz, Michael D. Conover, Mark Meiss, Bruno Goncalves, Alessandro Flammini, Filippo Menczer Menczer |
| How Does Social Capital Affect Retweets? | |
| Raquel Recuero, Ricardo Araujo, Gabriela Zago |
| Scalable Event-Based Clustering of Social Media Via Record Linkage Techniques | |
| Timo Reuter, Philipp Cimiano, Lucas Drumond, Krisztian Buza, Lars Schmidt-Thieme |
| An Assessment of Intrinsic and Extrinsic Motivation on Task Performance in Crowdsourcing Markets | |
| Jakob Rogstadius, Vassilis Kostakos, Aniket Kittur, Boris Smus, Jim Laredo, Maja Vukovic |
| Socio-Spatial Properties of Online Location-Based Social Networks | |
| Salvatore Scellato, Anastasios Noulas, Renaud Lambiotte, Cecilia Mascolo |
| Just a Click Away: Social Search and Metadata in Predicting File Discovery | |
| N. Sadat Shami, Michael Muller, David Millen |
| Differential Adaptive Diffusion: Understanding Diversity and Learning whom to Trust in Viral Marketing | |
| Hossam Sharara, William Rand, Lise Getoor |
| Memes Online: Extracted, Subtracted, Injected, and Recollected | |
| Matthew P. Simmons, Lada A. Adamic, Eytan Adar |
| Participation Maximization Based on Social Influence in Online Discussion Forums | |
| Tao Sun, Wei Chen, Zhenming Liu, Yajun Wang, Xiaorui Sun, Ming Zhang, Chin-Yew Lin |
| Diversity Measurement of Recommender Systems under Different User Choice Models | |
| Zoltán Szlávik, Wojtek Kowalczyk, Martijn Schut |
| What Stops Social Epidemics? | |
| Greg Ver Steeg, Rumi Ghosh, Kristina Lerman |
| Natural Language Processing to the Rescue? Extracting "Situational Awareness" Tweets During Mass Emergency | |
| Sudha Verma, Sarah Vieweg, William J. Corvey, Leysia Palen, James H. Martin, Martha Palmer, Aaron Schram, Kenneth M. Anderson |
| Identifying Representative Textual Sources in Blog Networks | |
| Karen Wade, Derek Greene, Conrad Lee, Daniel Archambault, Pádraig Cunningham |
| Event Detection in Twitter | |
| Jianshu Weng, Bu-Sung Lee |
| Culture Matters: A Survey Study of Social Q&A Behavior | |
| Jiang Yang, Meredith Ringel Morris, Jaime Teevan, Lada A. Adamic, Mark S. Ackerman |
| Classifying the Political Leaning of News Articles and Users from User Votes | |
| Daniel Xiaodan Zhou, Paul Resnick, Qiaozhu Mei |
Poster Papers
| Prominence Ranking in Graphs with Community Structure | |
| Sibel Adali, Xiaohui Lu, Malik Magdon-Ismail, Jonathan Purnell |
| Improving Text Clustering with Social Tagging | |
| M. Eduardo Ares, Javier Parapar, Álvaro Barreiro |
| Trends in Social Media: Persistence and Decay | |
| Sitaram Asur, Bernardo A. Huberman, Gabor Szabo, Chunyan Wang |
| Beyond Trending Topics: Real-World Event Identification on Twitter | |
| Hila Becker, Mor Naaman, Luis Gravano |
| Selecting Quality Twitter Content for Events | |
| Hila Becker, Mor Naaman, Luis Gravano |
| You Are Known by How You Vlog: Personality Impressions and Nonverbal Behavior in YouTube | |
| Joan-Isaac Biel, Oya Aran, Daniel Gatica-Perez |
| Modeling Public Mood and Emotion: Twitter Sentiment and Socio-Economic Phenomena | |
| Johan Bollen, Huina Mao, Alberto Pepe |
| Facebook Use and Social Capital — A Longitudinal Study | |
| Petter Bae Brandtzæg, Oded Nov |
| Who Should I Follow? Recommending People in Directed Social Networks | |
| Michael J. Brzozowski, Daniel M. Romero |
| A Bootstrapping Approach to Identifying Relevant Tweets for Social TV | |
| Ovidiu Dan, Junlan Feng, Brian D. Davison |
| Analyzing Political Trends in the Blogosphere | |
| Gianluca Demartini, Stefan Siersdorfer, Sergiu Chelaru, Wolfgang Nejdl |
| Using the H-Index to Estimate Blog Authority | |
| José Devezas, Sérgio Nunes, Cristina Ribeiro |
| Divided They Tweet: The Network Structure of Political Microbloggers and Discussion Topics | |
| Albert Feller, Matthias Kuhnert, Timm O. Sprenger, Isabell M. Welpe |
| Automatic Group-Interactive Radio Using Social-Networks of Musicians | |
| Ben Fields, Christophe Rhodes, Mark d'Inverno |
| Creating Conversations: An Automated Dialog System | |
| Lisa Gandy, Kristian Hammond |
| Large-Scale Community Detection on YouTube for Topic Discovery and Exploration | |
| Ullas Gargi, Wenjun Lu, Vahab Mirrokni, Sangho Yoon |
| Limits of Electoral Predictions Using Twitter | |
| Daniel Gayo-Avello, Panagiotis Takis Metaxas, Eni Mustafaraj |
| Trust, Reputation and the Small Firm: Building Online Brand Reputation for SMEs | |
| Barbara Gligorijevic, Benjamin Leong |
| Automatically Identifying Groups Based on Content and Collective Behavioral Patterns of Group Members | |
| Michelle Gregory, Dave W. Engel, Eric Bell, Andy Piatt, Scott Dowson, Andrew Cowell |
| Characterizing Social Relations Via NLP-Based Sentiment Analysis | |
| Georg Groh, Jan Hauffa |
| Exploring Text Virality in Social Networks | |
| Marco Guerini, Carlo Strapparava, Gozde Ozbal |
| Mapping the Political Twitterverse: Candidates and Their Followers in the Midterms | |
| Alexander Hanna, Ben Sayre, Leticia Bode, JungHwan Yang, Dhavan Shah |
| Relevance Modeling for Microblog Summarization | |
| Sanda Harabagiu, Andrew Hickl |
| Language Matters In Twitter: A Large Scale Study | |
| Lichan Hong, Gregorio Convertino, Ed H. Chi |
| Identifying Users Across Social Tagging Systems | |
| Tereza Iofciu, Peter Fankhauser, Fabian Abel, Kerstin Bischoff |
| Structure and Reciprocity in Technology-Centered Q&A Communities | |
| Ming Jiang, Tao Dong, Yung-Ju Chang |
| Supervised Topic Segmentation of Email Conversations | |
| Shafiq Joty, Giuseppe Carenini, Gabriel Murray, Raymond T Ng |
| Summarizing User-Contributed Comments | |
| Elham Khabiri, James Caverlee, Chiao-Fang Hsu |
| Twitter Sentiment Analysis: The Good the Bad and the OMG! | |
| Efthymios Kouloumpis, Theresa Wilson, Johanna Moore |
| Using Twitter to Detect and Tag Important Events in Sports Media | |
| James Lanagan, Alan F. Smeaton |
| Exploring Feature Definition and Selection for Sentiment Classifiers | |
| Yelena Mejova, Padmini Srinivasan |
| Sentiment Flow Through Hyperlink Networks | |
| Mahalia Miller, Conal Sathi, Daniel Wiesenthal, Jure Leskovec, Christopher Potts |
| Understanding the Demographics of Twitter Users | |
| Alan Mislove, Sune Lehmann, Yong-Yeol Ahn, Jukka-Pekka Onnela, J. Niels Rosenquist |
| LeadLag LDA: Estimating Topic Specific Leads and Lags of Information Outlets | |
| Ramesh Maruthi Nallapati, Xiaolin Shi, Daniel McFarland, Jure Leskovec, Daniel Jurafsky |
| Information Propagation on the Web: Data Extraction, Modeling and Simulation | |
| François Nel, Marie-Jeanne Lesot, Thomas Delavallade, Philippe Capet |
| Towards Discovery of Influence and Personality Traits through Social Link Prediction | |
| Thin Nguyen, Dinh Phung, Brett Adams, Svetha Venkatesh |
| An Empirical Study of Geographic User Activity Patterns in Foursquare | |
| Anastasios Noulas, Salvatore Scellato, Cecilia Mascolo, Massimiliano Pontil |
| Connecting Mutually Influencing Bloggers | |
| Aditya Pal, Jaya Kawale |
| Is Twitter a Good Place for Asking Questions? A Characterization Study | |
| Sharoda A. Paul, Lichan Hong, Ed H. Chi |
| Unearthing People from the SaND: Relationship Discovery with Social Media in the Enterprise | |
| Adam Perer, Ido Guy, Erel Uziel, Inbal Ronen, Michal Jacovi |
| RT to Win! Predicting Message Propagation in Twitter | |
| Sasa Petrovic, Miles Osborne, Victor Lavrenko |
| Methods to Determine Node Centrality and Clustering in Graphs with Uncertain Structure | |
| Joseph John Pfeiffer, Jennifer Neville |
| “Dancing with the Stars,” NBA Games, Politics: An Exploration of Twitter Users’ Response to Events | |
| Ana-Maria Popescu, Marco Pennacchiotti |
| Hierarchical Bayesian Models for Latent Attribute Detection in Social Media | |
| Delip Rao, Michael Paul, Clay Fink, David Yarowsky, Timothy Oates, Glen Coppersmith |
| Describing the Web in less than 140 Characters | |
| Stéphane Raux, Nils Grünwald, Christophe Prieur |
| Maintaining Ties on Social Media Sites: The Competing Effects of Balance, Exchange, and Betweenness | |
| Daniel Mauricio Romero, Brendan Meeder, Vladimir Barash, Jon Kleinberg |
| High Correlation between Incoming and Outgoing Activity: A Distinctive Property of Online Social Networks? | |
| Diego Saez-Trumper, David Nettleton, Ricardo Baeza-Yates |
| Using Network Structure to Identify Groups in Virtual Worlds | |
| Fahad Shah, Gita Reese Sukthankar |
| Viral Actions: Predicting Video View Counts Using Synchronous Sharing Behaviors | |
| David A. Shamma, Jude Yew, Lyndon Kennedy, Elizabeth F. Churchill |
| Personalized Landmark Recommendation Based on Geotags from Photo Sharing Sites | |
| Yue Shi, Pavel Serdyukov, Alan Hanjalic, Martha Larson |
| MODEC — Modeling and Detecting Evolutions of Communities | |
| Mansoureh Takaffoli, Farzad Sangi, Justin Fagnan, Osmar R. Zaiane |
| Factors Affecting Response Quantity, Quality, and Speed for Questions Asked Via Social Network Status Messages | |
| Jaime Teevan, Meredith Ringel Morris, Katrina Panovich |
| Social Influence, Popularity and Interestingness of Online Contents | |
| Hang Maxime Ung |
| An Optimized Web Feed Aggregation Approach for Generic Feed Types | |
| David Urbansky, Sandro Reichert, Klemens Muthmann, Daniel Schuster, Alexander Schill |
| Future Link Prediction in the Blogosphere for Recommendation | |
| Shanchan Wu, Louiqa Raschid, William Rand |
| Does Bad News Go Away Faster? | |
| Shaomei Wu, Chenhao Tan, Jon Kleinberg, Michael Walton Macy |
| Tracking Visual Memes in Rich-Media Social Communities | |
| Lexing Xie, Apostol Natsev, John R. Kender, Matthew Hill, John R. Smith |
Demonstration Papers
| Automatic Identification and Presentation of Twitter Content for Planned Events | |
| Hila Becker, Feiyang Chen, Dan Iter, Mor Naaman, Luis Gravano |
| Digital Diasporas Atlas Exploration and Cartography of Diasporas in Digital Networks | |
| Dana Diminescu, Renault Matthieu, Bourgeois Mehdi, Mathieu Jacomy |
| Making Project Team Recommendations from Online Information Sources | |
| Charles C. Earl, Amos Johnson, Kaakpema Yelpaala, Travis Good |
| TweetTracker: An Analysis Tool for Humanitarian and Disaster Relief | |
| Shamanth Kumar, Geoffrey Barbier, Mohammad Ali Abbasi, Huan Liu |
| TweetTrader.net: Leveraging Crowd Wisdom in a Stock Microblogging Forum | |
| Timm Oliver Sprenger |
| Areca: Online Comparison of Research Results | |
| David Urbansky, Klemens Muthmann, Lars Kreisz, Alexander Schill |
Workshop on the Future of the Social Web
| How Bad Do You Spell?: The Lexical Quality of Social Media | |
| Ricardo Baeza-Yates, Luz Rello |
| Brazilian Digital Culture Forum: A New Way of Making Public Policies | |
| Aline Carvalho, Adilson Cabral |
| Social Mechanics: An Empirically Grounded Science of Social Media | |
| Kristina Lerman, Aram Galstyan, Greg Ver Steeg, Tad Hogg |
| Mapping Information Flows on Twitter | |
| Gilad Lotan |
| GlobalIdentifier: Unexpected Personal Social Content with Data on the Web | |
| Sharon Paradesi, Fuming Shih |
Workshop on Social Innovation and Social Media
| Social Innovation Meets Social Media: A Framework Proposal | |
| Ricard Ruiz de Querol, Karolin Kappler, Andreas Kaltenbrunner, Yana Volkovich, David Laniado |
| Beyond Financial Support: Helping Citizens in Welfare Programs | |
| Nathalie Colineau, Cecile Paris |
| Retweet Reputation: A Bias-Free Evaluation Method for Tweeted Contents | |
| Shino Fujiki, Hiroya Yano, Takashi Fukuda, Hayato Yamana |
| Community Engagement through Social Media | |
| R. Jayakanthan |
| Social Media Revisited. User Generated Content as a Social Innovation for eInclusion | |
| Christoph Kaletka, Ralf Kopp, Bastian Pelka |
| Structuring E-Brainstorming to Better Support Innovation Processes | |
| Lorea Lorenzo, Osane Lizarralde, Igor Santos, Alexandre Passant |
| Information Markets for Social Participation in Public Policy Design and Implementation | |
| Gregoris Mentzas, Dimitris Apostolou, Efthimios Bothos, Babis Magoutas |
| Social Media for Social Innovation. Towards a Multi-Layered Analytic Framework | |
| Elena Pavan, Mario Diani, Claudia Padovani |
Workshop on the Social Mobile Web
| How Can You Not Be on Facebook?! A Digital Etnographic Exploratory Study of Portuguese Users | |
| Paula Cordeiro |
| Modeling the Detection of Textual Cyberbullying | |
| Karthik Dinakar, Roi Reichart, Henry Lieberman |
| Measuring User Influence on Twitter Using Modified K-Shell Decomposition | |
| Phil E. Brown, Junlan Feng |
| Asked and Answered: On Qualities and Quantities of Answers in Online Q&A Sites | |
| John Logie, Joseph Weinberg, F. Maxwell Harper, Joseph A. Konstan |
| Exploiting Semantic Annotations for Clustering Geographic Areas and Users in Location-based Social Networks | |
| Anastasios Noulas, Salvatore Scellato, Cecilia Mascolo, Massimiliano Pontil |
| Sensing Urban Social Geography Using Online Social Networking Data | |
| Santi Phithakkitnukoon |
| Using Hierarchical Community Structure to Improve Community-Based Message Routing | |
| Matthew Stabeler, Conrad Lee, Graham Williamson, Pádraig Cunningham |
| Marketing Ecosystem: The Dynamics of Twitter, TV Advertising, and Customer Acquisition | |
| Hikaru Yamamoto, Naohiro Matsumura |