Proceedings of the Fifth International Conference on Weblogs and Social Media
Sponsored by the Association for the Advancement of Artificial Intelligence
General Chair: Nicolas Nicolov and James G. Shanahan
Program Cochairs: Lada Adamic, Ricardo Baeza-Yates, Scott Counts
Barcelona, Catalonia, Spain, July 17 – 21, 2011. Published by The AAAI Press, Menlo Park, California.
This proceedings is also available in book and CD format.
Contents
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
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