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WWW 2013 Proceedings

Daniel Schwabe, Virgilio Almeida, Hartmut Glaser, Ricardo Baeza-Yates, & Sue Moon (editors), Proceedings of the IW3C2 WWW 2013 Conference, May 13–17, 2013, Rio de Janeiro, Brazil. IW3C2 2013, ISBN 978-1-4503-2035-1.


Table of Contents

General Chairs' Welcome
Daniel Schwabe (PUC-Rio, Brazil)
Virgilio Almeida (UFMG, Brazil)
Hartmut Glaser (CGI.br)

Programme Chairs’ Welcome
Ricardo Baeza-Yates (Yahoo! Labs, Spain & Chile)
Sue Moon (KAIST, South Korea)

Message from the Chair of IW3C2: In the beached margent of the sea …
Mary Ellen Zurko (Cisco Systems)

WWW 2013 Organization Listing (Chairs, Committees, & Reviewers)

WWW 2013 Sponsors & Supporters

 

WWW 2013 Research Papers
The proceedings papers are organized alphabetically by lead author's last name

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
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Real-Time Recommendation of Diverse Related Articles (Page 1)
Sofiane Abbar (Qatar Computing Research Institute)
Sihem Amer-Yahia (CNRS, LIG)
Piotr Indyk (Massachusetts Institute of Technology)
Sepideh Mahabadi (Massachusetts Institute of Technology)

Multi-Label Learning with Millions of Labels: Recommending Advertiser Bid Phrases for Web Pages (Page 13)
Rahul Agrawal (Microsoft AdCenter)
Archit Gupta (Indian Institude of Technology Delhi)
Yashoteja Prabhu (Micrososft Research)
Manik Varma (Micrososft Research)

Hierarchical Geographical Modeling of User Locations from Social Media Posts (Page 25)
Amr Ahmed (Google)
Liangjie Hong (Yahoo! Labs)
Alex Smola (Google & Carnegie Mellon University)

Distributed Large-scale Natural Graph Factorization (Page 37)
Amr Ahmed (Google)
Nino Shervashidze (INRIA, ENS)
Shravan Narayanamurthy (Microsoft)
Vanja Josifovski (Google)
Alexander J. Smola (Carnegie Mellon University & Google)

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A CRM System for Social Media: Challenges and Experiences (Page 49)
Jitendra Ajmera (IBM India Research)
Hyung-iL Ahn (IBM Research)
Meena Nagarajan (IBM Research)
Ashish Verma (IBM India Research)
Danish Contractor (IBM India Research)
Stephen Dill (IBM Research)
Matthew Denesuk (IBM Research)

Here's My Cert, So Trust Me, Maybe? Understanding TLS Errors on the Web (Page 59)
Devdatta Akhawe (University of California, Berkeley)
Bernhard Amann (International Computer Science Institute)
Matthias Vallentin (University of California, Berkeley)
Robin Sommer (International Computer Science Institute)

Towards a Robust Modeling of Temporal Interest Change Patterns for Behavioral Targeting (Page 71)
Mohamed Aly (Seeloz Inc.)
Sandeep Pandey (Twitter)
Vanja Josifovski (Google Inc.)
Kunal Punera (RelateIQ)

The Anatomy of LDNS Clusters: Findings and Implications for Web Content Delivery (Page 83)
Hussein A. Alzoubi (Case Western Reserve University)
Michael Rabinovich (Case Western Reserve University)
Oliver Spatscheck (AT&T Research Labs)

Steering User Behavior with Badges (Page 95)
Ashton Anderson (Stanford University)
Daniel Huttenlocher (Cornell University)
Jon Kleinberg (Cornell University)
Jure Leskovec (Stanford University)

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Cascading Tree Sheets and Recombinant HTML: Better Encapsulation and Retargeting of Web Content (Page 107)
Edward Benson (Massachusetts Institute of Technology)
David R. Karger (Massachusetts Institute of Technology)

CopyCatch: Stopping Group Attacks by Spotting Lockstep Behavior in Social Networks (Page 119)
Alex Beutel (Carnegie Mellon University)
Wanhong Xu (Facebook)
Venkatesan Guruswami (Carnegie Mellon University)
Christopher Palow (Facebook)
Christos Faloutsos (Carnegie Mellon University)

Inferring the Demographics of Search Users: Social Data Meets Search Queries (Page 131)
Bin Bi (University of California, Los Angeles)
Milad Shokouhi (Microsoft Research Cambridge)
Michal Kosinski (University of Cambridge)
Thore Graepel (Microsoft Research Cambridge)

Strategyproof Mechanisms for Competitive Influence in Networks (Page 141)
Allan Borodin (University of Toronto)
Mark Braverman (Princeton University)
Brendan Lucier (Microsoft Research)
Joel Oren (University of Toronto)

Reactive Crowdsourcing (Page 153)
Alessandro Bozzon (Politecnico di Milano)
Marco Brambilla (Politecnico di Milano)
Stefano Ceri (Politecnico di Milano)
Andrea Mauri (Politecnico di Milano)

On Participation in Group Chats on Twitter (Page 165)
Ceren Budak (University of California, Santa Barbara)
Rakesh Agrawal (Microsoft Research Labs)

The Role of Web Hosting Providers in Detecting Compromised Websites (Page 177)
Davide Canali (Eurecom)
Davide Balzarotti (Eurecom)
Aurélien Francillon (Eurecom)

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Your Browsing Behavior for a Big Mac: Economics of Personal Information Online (Page 189)
Juan Pablo Carrascal (Universitat Pompeu Fabra)
Christopher Riederer (Columbia University)
Vijay Erramilli (Telefónica Research)
Mauro Cherubini (Telefónica Research)
Rodrigo de Oliveira (Telefónica Research)

Is This App Safe for Children? A Comparison Study of Maturity Ratings on Android and IOS Applications (Page 201)
Ying Chen (The Pennsylvania State University)
Heng Xu (The Pennsylvania State University)
Yilu Zhou (George Washington University)
Sencun Zhu (The Pennsylvania State University)

Traveling the Silk Road: A Measurement Analysis of a Large Anonymous Online Marketplace (Page 213)
Nicolas Christin (Carnegie Mellon University)

Group Chats on Twitter (Page 225)
James Cook (University of California, Berkeley)
Krishnaram Kenthapadi (Microsoft Research)
Nina Mishra (Microsoft Research)

How to Grow More Pairs: Suggesting Review Targets for Comparison-Friendly Review Ecosystems (Page 237)
James Cook (University of California, Berkeley)
Alex Fabrikant (Google Research)
Avinatan Hassidim (Google Research)

A Framework for Benchmarking Entity-Annotation Systems (Page 249)
Marco Cornolti (University of Pisa)
Paolo Ferragina (University of Pisa)
Massimiliano Ciaramita (Google Research)

A Framework for Learning Web Wrappers from the Crowd (Page 261)
Valter Crescenzi (Università degli Studi Roma Tre)
Paolo Merialdo (Università Roma Tre)
Disheng Qiu (Università Roma Tre)

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Lightweight Server Support for Browser-Based CSRF Protection (Page 273)
Alexei Czeskis (University of Washington)
Alexander Moshchuk (Microsoft Research)
Tadayoshi Kohno (University of Washington)
Helen J. Wang (Microsoft Research)

Aggregating Crowdsourced Binary Ratings (Page 285)
Nilesh Dalvi (Facebook, Inc.)
Anirban Dasgupta (Yahoo! Labs)
Ravi Kumar (Google)
Vibhor Rastogi (Google)

Optimal Hashing Schemes for Entity Matching (Page 295)
Nilesh Dalvi (Facebook)
Vibhor Rastogi (Google)
Anirban Dasgupta (Yahoo!)
Anish Das Sarma (Google)
Tamás Sarlós (Google)

No Country for Old Members: User Lifecycle and Linguistic Change in Online Communities (Page 307)
Cristian Danescu-Niculescu-Mizil (Stanford University & Max Planck Institute SWS)
Robert West (Stanford University)
Dan Jurafsky (Stanford University)
Jure Leskovec (Stanford University)
Christopher Potts (Stanford University)

Crowdsourced Judgement Elicitation with Endogenous Proficiency (Page 319)
Anirban Dasgupta (Yahoo! Labs)
Arpita Ghosh (Cornell University)

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Timespent Based Models for Predicting User Retention (Page 331)
Kushal Dave (IIIT - Hyderabad)
Vishal Vaingankar (StumbleUpon)
Sumanth Kolar (StumbleUpon)
Vasudeva Varma (IIIT - Hyderabad)

Attributing Authorship of Revisioned Content (Page 343)
Luca de Alfaro (University of California)
Michael Shavlovsky (University of California)

ClausIE: Clause-Based Open Information Extraction (Page 355)
Luciano Del Corro (Max-Planck-Institute für Informatik)
Rainer Gemulla (Max-Planck-Institute für Informatik)

Pick-A-Crowd: Tell Me What You Like, and I'll Tell You What to Do - A Crowdsourcing Platform for Personalized Human Intelligence Task Assignment Based on Social Networks (Page 367)
Djellel Eddine Difallah (University of Fribourg)
Gianluca Demartini (University of Fribourg)
Philippe Cudré-Mauroux (University of Fribourg)

Compact Explanation of Data Fusion Decisions (Page 379)
Xin Luna Dong (Google Inc.)
Divesh Srivastava (AT&T Labs-Research)

From Query to Question in One Click: Suggesting Synthetic Questions to Searchers (Page 391)
Gideon Dror (Yahoo! Research)
Yoelle Maarek (Yahoo! Research)
Avihai Mejer (Yahoo! Research)
Idan Szpektor (Yahoo! Research)

Perception and Understanding of Social Annotations in Web Search (Page 403)
Jennifer Fernquist (Google, Inc.)
Ed H. Chi (Google, Inc.)

AMIE: Association Rule Mining under Incomplete Evidence in Ontological Knowledge Bases (Page 413)
Luis Galárraga (Max-Planck Institute for Informatics)
Christina Teflioudi (Max-Planck Institute for Informatics)
Katja Hose (Aalborg University)
Fabian Suchanek (Max-Planck Institute for Informatics)

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PrefixSolve: Efficiently Solving Multi-Source Multi-Destination Path Queries on RDF Graphs by Sharing Suffix Computations (Page 423)
Sidan Gao (North Carolina State University)
Kemafor Anyanwu (North Carolina State University)

When Tolerance Causes Weakness: The Case of Injection-Friendly Browsers (Page 435)
Yossi Gilad (Bar-Ilan University)
Amir Herzberg (Bar-Ilan University)

Exploiting Innocuous Activity for Correlating Users Across Sites (Page 447)
Oana Goga (UPMC Sorbonne Universites)
Howard Lei (ICSI)
Sree Hari Krishnan Parthasarathi (ICSI)
Gerald Friedland (ICSI & University of California, Berkeley)
Robin Sommer (ICSI & LBNL)
Renata Teixeira (CNRS & UPMC Sorbonne Universites)

The Cost of Annoying Ads (Page 459)
Daniel G. Goldstein (Microsoft Research)
R. Preston McAfee (Google Strategic Technologies)
Siddharth Suri (Microsoft Research)

Researcher Homepage Classification Using Unlabeled Data (Page 471)
Sujatha Das Gollapalli (The Pennsylvania State University)
Cornelia Caragea (The University of North Texas)
Prasenjit Mitra (The Pennsylvania State University)
C. Lee Giles (The Pennsylvania State University)

Google+ or Google-? Dissecting the Evolution of the New OSN in its First Year (Page 483)
Roberto Gonzalez (Universidad Carlos III de Madrid)
Ruben Cuevas (Universidad Carlos III de Madrid)
Reza Motamedi (University of Oregon)
Reza Rejaie (University of Oregon)
Angel Cuevas (Telecom Sud Paris)

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Probabilistic Group Recommendation via Information Matching (Page 495)
Jagadeesh Gorla (University College London)
Neal Lathia (University of Cambridge)
Stephen Robertson (Microsoft Research)
Jun Wang (University College London)

WTF: The Who to Follow Service at Twitter (Page 505)
Pankaj Gupta (Twitter, Inc.)
Ashish Goel (Twitter, Inc.)
Jimmy Lin (Twitter, Inc.)
Aneesh Sharma (Twitter, Inc.)
Dong Wang (Twitter, Inc.)
Reza Zadeh (Twitter, Inc.)

Mining Expertise and Interests from Social Media (Page 515)
Ido Guy (IBM Research)
Uri Avraham (IBM Research)
David Carmel (IBM Research)
Sigalit Ur (IBM Research)
Michal Jacovi (IBM Research)
Inbal Ronen (IBM Research)

Measuring Personalization of Web Search (Page 527)
Aniko Hannak (Northeastern University)
Piotr Sapieżyński (Technical University of Denmark)
Arash Molavi Kakhki (Northeastern University)
Balachander Krishnamurthy (AT&T Labs - Research)
David Lazer (Northeastern University)
Alan Mislove (Northeastern University)
Christo Wilson (Northeastern University)

Estimating Clustering Coefficients and Size of Social Networks via Random Walk (Page 539)
Stephen J. Hardiman (Capital Fund Management)
Liran Katzir (Microsoft Research)

Exploiting Annotations for the Rapid Development of Collaborative Web Applications (Page 551)
Matthias Heinrich (SAP Research)
Franz Josef Grüneberger (SAP Research)
Thomas Springer (Dresden University of Technology)
Martin Gaedke (Chemnitz University of Technology)

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Web Usage Mining with Semantic Analysis (Page 561)
Laura Hollink (Delft University of Technology & VU University of Amsterdam)
Peter Mika (Yahoo! Research)
Roi Blanco (Yahoo! Research)

Organizational Overlap on Social Networks and Its Applications (Page 571)
Cho-Jui Hsieh (University of Texas at Austin)
Mitul Tiwari (LinkedIn)
Deepak Agarwal (LinkedIn)
Xinyi (Lisa) Huang (University of Waterloo)
Sam Shah (LinkedIn)

Space-Efficient Data Structures for Top-k Completion (Page 583)
Bo-June (Paul) Hsu (Microsoft Research)
Giuseppe Ottaviano (Università di Pisa)

Personalized Recommendation Via Cross-Domain Triadic Factorization (Page 595)
Liang Hu (Shanghai Jiaotong University)
Jian Cao (Shanghai Jiaotong University)
Guandong Xu (University Technology Sydney)
Longbing Cao (University Technology Sydney)
Zhiping Gu (Shanghai Technical Institute of Electronics & Information)
Can Zhu (Shanghai Jiaotong University)

Unsupervised Sentiment Analysis with Emotional Signals (Page 607)
Xia Hu (Arizona State University)
Jiliang Tang (Arizona State University)
Huiji Gao (Arizona State University)
Huan Liu (Arizona State University)

An Analysis of Socware Cascades in Online Social Networks (Page 619)
Ting-Kai Huang (University of California, Riverside)
Md Sazzadur Rahman (University of California, Riverside)
Harsha V. Madhyastha (University of California, Riverside)
Michalis Faloutsos (University of California, Riverside)

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Measurement and Analysis of Child Pornography Trafficking on P2P Networks (Page 631)
Ryan Hurley (University of Massachusetts, Amherst)
Swagatika Prusty (University of Massachusetts, Amherst)
Hamed Soroush (University of Massachusetts, Amherst)
Robert J. Walls (University of Massachusetts, Amherst)
Jeannie Albrecht (Williams College)
Emmanuel Cecchet (University of Massachusetts, Amherst)
Brian Neil Levine (University of Massachusetts, Amherst)
Marc Liberatore (University of Massachusetts, Amherst)
Brian Lynn (University of Massachusetts, Amherst)
Janis Wolak (University of New Hampshire)

HeteroMF: Recommendation in Heterogeneous Information Networks Using Context Dependent Factor Models (Page 643)
Mohsen Jamali (University of British Columbia)
Laks V. S. Lakshmanan (University of British Columbia)

Interactive Exploratory Search for Multi Page Search Results (Page 655)
Xiaoran Jin (University College London)
Marc Sloan (University College London)
Jun Wang (University College London)

Spatio-Temporal Dynamics of Online Memes: A Study of Geo-Tagged Tweets (Page 667)
Krishna Y. Kamath (Texas A&M University)
James Caverlee (Texas A&M University)
Kyumin Lee (Texas A&M University)
Zhiyuan Cheng (Texas A&M University)

Accountable Key Infrastructure (AKI): A Proposal for a Public-Key Validation Infrastructure (Page 679)
Tiffany Hyun-Jin Kim (Carnegie Mellon University)
Lin-Shung Huang (Carnegie Mellon University)
Adrian Perrig (Carnegie Mellon University)
Collin Jackson (Carnegie Mellon University)
Virgil Gligor (Carnegie Mellon University)

DIGTOBI: A Recommendation System for Digg Articles Using Probabilistic Modeling (Page 691)
Younghoon Kim (Seoul National University)
Yoonjae Park (Seoul National University)
Kyuseok Shim (Seoul National University)

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Understanding Latency Variations of Black Box Services (Page 703)
Darja Krushevskaja (Rutgers University)
Mark Sandler (Google Inc.)

Diversified Recommendation on Graphs: Pitfalls, Measures, and Algorithms (Page 715)
Onur Küçüktunç (The Ohio State University)
Erik Saule (The Ohio State University)
Kamer Kaya (The Ohio State University)
Ümit V. Çatalyürek (The Ohio State University)

What Is the Added Value of Negative Links in Online Social Networks? (Page 727)
Jérôme Kunegis (University of Koblenz-Landau)
Julia Preusse (University of Koblenz-Landau)
Felix Schwagereit (University of Koblenz-Landau)

Voices of Victory: A Computational Focus Group Framework for Tracking Opinion Shift in Real Time (Page 737)
Yu-Ru Lin (Northeastern University)
Drew Margolin (Northeastern University)
Brian Keegan (Northeastern University)
David Lazer (Northeastern University)

Rethinking the Web as a Personal Archive (Page 749)
Siân E. Lindley (Microsoft Research Cambridge)
Catherine C. Marshall (Microsoft Research Silicon Valley)
Richard Banks (Microsoft Research Cambridge)
Abigail Sellen (Microsoft Research Cambridge)
Tim Regan (Microsoft Research Cambridge)

Expressive Languages for Selecting Groups from Graph-Structured Data (Page 761)
Vitaliy Liptchinsky (Vienna University of Technology)
Benjamin Satzger (Vienna University of Technology)
Rostyslav Zabolotnyi (Vienna University of Technology)
Schahram Dustdar (Vienna University of Technology)

Modeling/Predicting the Evolution Trend of OSN-Based Applications (Page 771)
Han Liu (University of California-Davis)
Atif Nazir (University of California-Davis)
Jinoo Joung (Sangmyung University)
Chen-Nee Chuah (University of California-Davis)

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SoCo: A Social Network Aided Context-Aware Recommender System (Page 781)
Xin Liu (École Polytechnique Fédérale de Lausanne)
Karl Aberer (École Polytechnique Fédérale de Lausanne)

Using Stranger as Sensors: Temporal and Geo-Sensitive Question Answering via Social Media (Page 803)
Yefeng Liu (Waseda University)
Todorka Alexandrova (Waseda University)
Tatsuo Nakajima (Waseda University)

Imagen: Runtime Migration of Browser Sessions for JavaScript Web Applications (Page 815)
James Lo (University of British Columbia)
Eric Wohlstadter (University of British Columbia)
Ali Mesbah (University of British Columbia)

Gender Swapping and User Behaviors in Online Social Games (Page 827)
Jing-Kai Lou (National Taiwan University)
Kunwoo Park (Korea Advanced Institute of Science and Technology)
Meeyoung Cha (Korea Advanced Institute of Science and Technology)
Juyong Park (Korea Advanced Institute of Science and Technology)
Chin-Laung Lei (National Taiwan University)
Kuan-Ta Chen (Academia Sinica)

Mining Structural Hole Spanners Through Information Diffusion in Social Networks (Page 837)
Tiancheng Lou (Google, Inc. & Tsinghua University)
Jie Tang (Tsinghua University)

On the Evolution of the Internet Economic Ecosystem (Page 849)
Richard T. B. Ma (National University of Singapore)
John C. S. Lui (The Chinese University of Hong Kong)
Vishal Misra (Columbia University)

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Two Years of Short URLs Internet Measurement: Security Threats and Countermeasures (Page 861)
Federico Maggi (Politecnico di Milano)
Alessandro Frossi (Politecnico di Milano)
Stefano Zanero (Politecnico di Milano)
Gianluca Stringhini (UC Santa Barbara)
Brett Stone-Gross (UC Santa Barbara)
Christopher Kruegel (UC Santa Barbara)
Giovanni Vigna (UC Santa Barbara)

Know Your Personalization: Learning Topic Level Personalization in Online Services (Page 873)
Anirban Majumder (Bell Labs Research)
Nisheeth Shrivastava (Bell Labs Research)

Saving, Reusing, and Remixing Web Video: Using Attitudes and Practices to Reveal Social Norms (Page 885)
Catherine C. Marshall (Microsoft Research, Silicon Valley)
Frank M. Shipman (Texas A&M University)

From Amateurs to Connoisseurs: Modeling the Evolution of User Expertise Through Online Reviews (Page 897)
Julian McAuley (Stanford University)
Jure Leskovec (Stanford University)

The FLDA Model for Aspect-Based Opinion Mining: Addressing the Cold Start Problem (Page 909)
Samaneh Moghaddam (Simon Fraser University)
Martin Ester (Simon Fraser University)

Iolaus: Securing Online Content Rating Systems (Page 919)
Arash Molavi Kakhki (Northeastern University)
Chloe Kliman-Silver (Brown University)
Alan Mislove (Northeastern University)

On Cognition, Emotion, and Interaction Aspects of Search Tasks with Different Search Intentions (Page 931)
Yashar Moshfeghi (University of Glasgow)
Joemon M. Jose (University of Glasgow)

Ad Impression Forecasting for Sponsored Search (Page 943)
Abhirup Nath (Microsoft Research India)
Shibnath Mukherjee (Microsoft adCenter)
Prateek Jain (Microsoft Research India)
Navin Goyal (Microsoft Research India)
Srivatsan Laxman (Microsoft Research India)

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Measurement and Modeling of Eye-Mouse Behavior in the Presence of Nonlinear Page Layouts (Page 953)
Vidhya Navalpakkam (Google)
LaDawn Jentzsch (Google)
Rory Sayres (Google)
Sujith Ravi (Google)
Amr Ahmed (Google)
Alex Smola (Google & Carnegie Mellon University)

Understanding and Decreasing the Network Footprint of Catch-up TV (Page 965)
Gianfranco Nencioni (University of Pisa)
Nishanth Sastry (King's College London)
Jigna Chandaria (BBC R&D)
Jon Crowcroft (University of Cambridge)

Sorry, I Don't Speak SPARQL - Translating SPARQL Queries into Natural Language (Page 977)
Axel-Cyrille Ngonga Ngomo (Universität Leipzig)
Lorenz Bühmann (Universität Leipzig)
Christina Unger (Bielefeld University)
Jens Lehmann (Universität Leipzig)
Daniel Gerber (Universität Leipzig)

Bitsquatting: Exploiting Bit-flips for Fun, or Profit? (Page 989)
Nick Nikiforakis (iMinds-Distrinet, KU Leuven)
Steven Van Acker (iMinds-Distrinet, KU Leuven)
Wannes Meert (DTAI, KU Leuven)
Lieven Desmet (iMinds-Distrinet, KU Leuven)
Frank Piessens (iMinds-Distrinet, KU Leuven)
Wouter Joosen (iMinds-Distrinet, KU Leuven)

One-Class Collaborative Filtering with Random Graphs (Page 999)
Ulrich Paquet (Microsoft Reseach Cambridge)
Noam Koenigstein (Microsoft R&D)

Latent Credibility Analysis (Page 1009)
Jeff Pasternack (Facebook, Inc.)
Dan Roth (University of Illinois, Urbana-Champaign)

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Predicting Group Stability in Online Social Networks (Page 1021)
Akshay Patil (Stony Brook University)
Juan Liu (Palo Alto Research Center)
Jie Gao (Stony Brook University)

Predictive Web Automation Assistant for People with Vision Impairments (Page 1019)
Yury Puzis (Charmtech Labs LLC)
Yevgen Borodin (Charmtech Labs LLC)
Rami Puzis (Ben-Gurion University)
I.V. Ramakrishnan (Charmtech Labs LLC)

Mining Collective Intelligence in Diverse Groups (Page 1041)
Guo-Jun Qi (University of Illinois at Urbana-Champaign)
Charu C. Aggarwal (IBM T.J. Watson Research Center)
Jiawei Han (University of Illinois at Urbana-Champaign)
Thomas Huang (University of Illinois at Urbana-Champaign)

Trade Area Analysis Using User Generated Mobile Location Data (Page 1053)
Yan Qu (PlaceNous.com)
Jun Zhang (Pitney Bowes Inc.)

Psychological Maps 2.0: A Web Engagement Enterprise Starting in London (Page 1065)
Daniele Quercia (Yahoo! Research)
João Paulo Pesce (UFMG)
Virgilio Almeida (UFMG)
Jon Crowcroft (University of Cambridge)

Towards Realistic Team Formation in Social Networks Based on Densest Subgraphs (Page 1077)
Syama Rangapuram (Max Planck Institute for Computer Science)
Thomas Bühler (Saarland University)
Matthias Hein (Saarland University)

Efficient Community Detection in Large Networks Using Content and Links (Page 1089)
Yiye Ruan (The Ohio State University)
David Fuhry (The Ohio State University)
Srinivasan Parthasarathy (The Ohio State University)

Learning Joint Query Interpretation and Response Ranking (Page 1099)
Uma Sawant (IIT Bombay & Yahoo! Labs)
Soumen Chakrabarti (IIT Bombay)

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A Model for Green Design of Online News Media Services (Page 1111)
Daniel Schien (University of Bristol)
Paul Shabajee (University of Bristol)
Stephen G. Wood (University of Surrey)
Chris Preist (University of Bristol)

Potential Networks, Contagious Communities, and Understanding Social Network Structure (Page 1123)
Grant Schoenebeck (University of Michigan)

Do Social Explanations Work? Studying and Modeling the Effects of Social Explanations in Recommender Systems (Page 1133)
Amit Sharma (Cornell University)
Dan Cosley (Cornell University)

Question Answering on Interlinked Data (Page 1145)
Saeedeh Shekarpour (Leipzig University)
Axel-Cyrille Ngonga Ngomo (Leipzig University)
Sören Auer (Leipzig University)

Pricing Mechanisms for Crowdsourcing Markets (Page 1157)
Yaron Singer (Google Innc)
Manas Mittal (University of California, Berkeley)

Truthful Incentives in Crowdsourcing Tasks Using Regret Minimization Mechanisms (Page 1167)
Adish Singla (ETH Zurich)
Andreas Krause (ETH Zurich)

A Predictive Model for Advertiser Value-Per-Click in Sponsored Search (Page 1179)
Eric Sodomka (Brown University)
Sébastien Lahaie (Microsoft Research)
Dustin Hillard (Microsoft Corp.)

I Know the Shortened URLs You Clicked on Twitter: Inference Attack Using Public Click Analytics and Twitter Metadata (Page 1191)
Jonghyuk Song (POSTECH)
Sangho Lee (POSTECH)
Jong Kim (POSTECH)

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Exploring and Exploiting User Search Behavior on Mobile and Tablet Devices to Improve Search Relevance (Page 1201)
Yang Song (Microsoft Research)
Hao Ma (Microsoft Research)
Hongning Wang (University of Illinois at Urbana-Champaign)
Kuansan Wang (Microsoft Research)

Evaluating and Predicting User Engagement Change with Degraded Search Relevance (Page 1213)
Yang Song (Microsoft Research)
Xiaolin Shi (Microsoft Bing)
Xin Fu (LinkedIn Corporation)

Data-Fu: A Language and an Interpreter for Interaction with Read/Write Linked Data (Page 1225)
Steffen Stadtmüller (Karlsruhe Institute of Technology)
Sebastian Speiser (Karlsruhe Institute of Technology)
Andreas Harth (Karlsruhe Institute of Technology)
Rudi Studer (Karlsruhe Institute of Technology)

NIFTY: A System for Large Scale Information Flow Tracking and Clustering (Page 1237)
Caroline Suen (Stanford University)
Sandy Huang (Stanford University)
Chantat Eksombatchai (Stanford University)
Rok Sosič (Stanford University)
Jure Leskovec (Stanford University)

When Relevance Is Not Enough: Promoting Diversity and Freshness in Personalized Question Recommendation (Page 1249)
Idan Szpektor (Yahoo! Research)
Yoelle Maarek (Yahoo! Research)
Dan Pelleg (Yahoo! Research)

Mining Acronym Expansions and Their Meanings Using Query Click Log (Page 1261)
Bilyana Taneva (Max-Planck Institute for Informatics)
Tao Cheng (Microsoft Research)
Kaushik Chakrabarti (Microsoft Research)
Yeye He (Microsoft Research)

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Groundhog Day: Near-Duplicate Detection on Twitter (Page 1273)
Ke Tao (Delft University of Technology)
Fabian Abel (Delft University of Technology & XING AG)
Claudia Hauff (Delft University of Technology)
Geert-Jan Houben (Delft University of Technology)
Ujwal Gadiraju (Delft University of Technology)

Uncovering Locally Characterizing Regions within Geotagged Data (Page 1285)
Bart Thomee (Yahoo! Research)
Adam Rae (brandcrumb)

Spectral Analysis of Communication Networks Using Dirichlet Eigenvalues (Page 1297)
Alexander Tsiatas (University of California, San Diego)
Iraj Saniee (Alcatel-Lucent Bell Labs)
Onuttom Narayan (University of California, Santa Cruz)
Matthew Andrews (Alcatel-Lucent Bell Labs)

Subgraph Frequencies: Mapping the Empirical and Extremal Geography of Large Graph Collections (Page 1307)
Johan Ugander (Cornell University)
Lars Backstrom (Facebook)
Jon Kleinberg (Cornell University)

The Self-Feeding Process: A Unifying Model for Communication Dynamics in the Web (Page 1319)
Pedro O. S. Vaz de Melo (Universidade Federal de Minas Gerais)
Christos Faloutsos (Carnegie Mellon University)
Renato Assunção (Universidade Federal de Minas Gerais)
Antonio A. F. Loureiro (Universidade Federal de Minas Gerais)

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Google+ Ripples: A Native Visualization of Information Flow (Page 1389)
Fernanda Viégas (Google, Inc.)
Martin Wattenberg (Google, Inc.)
Jack Hebert (Google, Inc.)
Geoffrey Borggaard (Google, Inc.)
Alison Cichowlas (Google, Inc.)
Jonathan Feinberg (Google, Inc.)
Jon Orwant (Google, Inc.)
Christopher R. Wren (Google, Inc.)

Whom to Mention: Expand the Diffusion of Tweets by @ Recommendation on Micro-Blogging Systems (Page 1331)
Beidou Wang (Zhejiang University)
Can Wang (Zhejiang University)
Jiajun Bu (Zhejiang University)
Chun Chen (Zhejiang University)
Wei Vivian Zhang (Microsoft Corporation)
Deng Cai (Zhejiang University)
Xiaofei He (Zhejiang University)

Wisdom in the Social Crowd: An Analysis of Quora (Page 1341)
Gang Wang (UC Santa Barbara)
Konark Gill (UC Santa Barbara)
Manish Mohanlal (UC Santa Barbara)
Haitao Zheng (UC Santa Barbara)
Ben Y. Zhao (UC Santa Barbara)

Learning to Extract Cross-Session Search Tasks (Page 1353)
Hongning Wang (University of Illinois at Urbana-Champaign)
Yang Song (Microsoft Research)
Ming-Wei Chang (Microsoft Research)
Xiaodong He (Microsoft Research)
Ryen W. White (Microsoft Research)
Wei Chu (Microsoft Bing)

Content-Aware Click Modeling (Page 1365)
Hongning Wang (University of Illinois at Urbana-Champaign)
ChengXiang Zhai (University of Illinois at Urbana-Champaign)
Anlei Dong (Yahoo! Labs)
Yi Chang (Yahoo! Labs)

Is It Time for a Career Switch? (Page 1377)
Jian Wang (University of California, Santa Cruz)
Yi Zhang (University of California, Santa Cruz)
Christian Posse (LinkedIn Corp.)
Anmol Bhasin (LinkedIn Corp.)

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From Cookies to Cooks: Insights on Dietary Patterns via Analysis of Web Usage Logs (Page 1399)
Robert West (Stanford University)
Ryen W. White (Microsoft Research)
Eric Horvitz (Microsoft Research)

Enhancing Personalized Search by Mining and Modeling Task Behavior (Page 1411)
Ryen W. White (Microsoft Research)
Wei Chu (Microsoft Bing)
Ahmed Hassan (Microsoft Research)
Xiaodong He (Microsoft Research)
Yang Song (Microsoft Research)
Hongning Wang (University of Illinois at Urbana-Champaign)

Inferring Dependency Constraints on Parameters for Web Services (Page 1421)
Qian Wu (Peking University)
Ling Wu (Peking University)
Guangtai Liang (Peking University)
Qianxiang Wang (Peking University)
Tao Xie (North Carolina State University)
Hong Mei (Peking University)

Predicting Advertiser Bidding Behaviors in Sponsored Search by Rationality Modeling (Page 1433)
Haifeng Xu (University of Waterloo)
Bin Gao (Microsoft Research Asia)
Diyi Yang (Shanghai Jiao Tong University)
Tie-Yan Liu (Microsoft Research Asia)

A Biterm Topic Model for Short Texts (Page 1445)
Xiaohui Yan (Institute of Computing Technology, CAS)
Jiafeng Guo (Institute of Computing Technology, CAS)
Yanyan Lan (Institute of Computing Technology, CAS)
Xueqi Cheng (Institute of Computing Technology, CAS)

Unified Entity Search in Social Media Community (Page 1457)
Ting Yao (City University of Hong Kong)
Yuan Liu (Ricoh Software Research Center Co., Ltd.)
Chong-Wah Ngo (City University of Hong Kong)
Tao Mei (Microsoft Research Asia)

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MATRI: A Multi-Aspect and Transitive Trust Inference Model (Page 1467)
Yuan Yao (State Key Laboratory for Novel Software Technology)
Hanghang Tong (City College, CUNY)
Xifeng Yan (University of California at Santa Barbara)
Feng Xu (State Key Laboratory for Novel Software Technology)
Jian Lu (State Key Laboratory for Novel Software Technology)

Predicting Positive and Negative Links in Signed Social Networks by Transfer Learning (Page 1477)
Jihang Ye (The Chinese University of Hong Kong)
Hong Cheng (The Chinese University of Hong Kong)
Zhe Zhu (The Chinese University of Hong Kong)
Minghua Chen (The Chinese University of Hong Kong)

Sparse Online Topic Models (Page 1489)
Aonan Zhang (Tsinghua University)
Jun Zhu (Tsinghua University)
Bo Zhang (Tsinghua University)

TopRec: Domain-Specific Recommendation Through Community Topic Mining in Social Network (Page 1501)
Xi Zhang (Chinese Academy of Sciences)
Jian Cheng (Chinese Academy of Sciences)
Ting Yuan (Chinese Academy of Sciences)
Biao Niu (Chinese Academy of Sciences)
Hanqing Lu (Chinese Academy of Sciences)

Localized Matrix Factorization for Recommendation Based on Matrix Block Diagonal Forms (Page 1511)
Yongfeng Zhang (Tsinghua University)
Min Zhang (Tsinghua University)
Yiqun Liu (Tsinghua University)
Shaoping Ma (Tsinghua University)
Shi Feng (Tsinghua University)

Predicting Purchase Behaviors from Social Media (Page 1521)
Yongzheng Zhang (eBay Inc.)
Marco Pennacchiotti (eBay Inc.)

Anatomy of a Web-Scale Resale Market: A Data Mining Approach (Page 1533)
Yuchen Zhao (University of Illinois at Chicago)
Neel Sundaresan (eBay Research Labs)
Zeqian Shen (eBay Research Labs)
Philip S. Yu (University of Illinois at Chicago & King Abdulaziz University)

Questions about Questions: An Empirical Analysis of Information Needs on Twitter (Page 1545)
Zhe Zhao (University of Michigan)
Qiaozhu Mei (University of Michigan)

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Which Vertical Search Engines Are Relevant? Understanding Vertical Relevance Assessments for Web Queries (Page 1557)
Ke Zhou (University of Glasgow)
Ronan Cummins (University of Greenwich)
Mounia Lalmas (Yahoo! Labs)
Joemon M. Jose (University of Glasgow)

Making the Most of Your Triple Store: Query Answering in OWL 2 Using an RL Reasoner (Page 1569)
Yujiao Zhou (University of Oxford)
Bernardo Cuenca Grau (University of Oxford)
Ian Horrocks (University of Oxford)
Zhe Wu (Oracle Corporation)
Jay Banerjee (Oracle Corporation)

Security Implications of Password Discretization for Click-Based Graphical Passwords (Page 1581)
Bin B. Zhu (Microsoft Research Asia)
Dongchen Wei (Sichuan University)
Maowei Yang (Sichuan University)
Jeff Yan (Newcastle University)