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Author Index

WWW'16 Proceedings Table of Contents

WWW 2016 General Chairs' Welcome
Jacqueline Bourdeau (TELUQ)
Jim Hendler (Rensselaer Polytechnic Institute)
Roger Nkambou (Université du Québec ŕ Montréal)

WWW 2016 PC Chairs' Welcome
Ian Horrocks (Oxford University)
Ben Y. Zhao (University of California, Santa Barbara)

WWW2016 Organization and Committees

WWW 2016 Sponsors and Supporters

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Keynote Talks

Session 13

Session 26A

Session 1

Session 14

Session 26B

Session 2

Session 15

Session 27A

Session 3

Session 16

Session 27B

Session 4

Session 17

Session 28A

Session 5

Session 18

Session 28B

Session 6

Session 19

Session 29A

Session 7

Session 20

Session 29B

Session 8

Session 21

Session 30A

Session 9

Session 22

Session 30B

Session 10

Session 23

Session 31

Session 11

Session 24

Session 32

Session 12

Session 25

Session 33

Session 13


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Keynote Talks

The Semantic Web and the Semantics of the Web: Where Does Meaning Come From? (Page 1)
Peter Norvig (Google)

Dot Everyone Power, the Internet and You (Page 3)
Martha Lane Fox (Open University)

La Sécurité Ouverte How We Doin' So Far? (Page 5)
Mary Ellen Zurko (Cisco Systems)

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Session 1
Session Chair: Matteo Riondato (Two Sigma Investments)

Social Networks Under Stress (Page 9)
Daniel M. Romero (University of Michigan)
Brian Uzzi (Northwestern University)
Jon Kleinberg (Cornell University)

Measuring Urban Social Diversity Using Interconnected Geo-Social Networks (Page 21)
Desislava Hristova (University of Cambridge)
Matthew J. Williams (University of Birmingham)
Mirco Musolesi (University College London)
Pietro Panzarasa (Queen Mary, University of London)
Cecilia Mascolo (University of Cambridge)

Recommendations in Signed Social Networks (Page 31)
Jiliang Tang (Yahoo Labs)
Charu Aggarwal (IBM T.J. Watson Research Center)
Huan Liu (Arizona State University)

HeteroSales: Utilizing Heterogeneous Social Networks to Identify the Next Enterprise Customer (Page 41)
Qingbo Hu (University of Illinois at Chicago)
Sihong Xie (University of Illinois at Chicago)
Jiawei Zhang (University of Illinois at Chicago)
Qiang Zhu (LinkedIn Corporation)
Songtao Guo (LinkedIn Corporation)
Philip S. Yu (University of Illinois at Chicago & Tsinghua University)

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Session 2
Session Chair: Xavier Amatriain (Quora)

Immersive Recommendation: News and Event Recommendations Using Personal Digital Traces (Page 51)
Cheng-Kang Hsieh (University of California, Los Angeles)
Longqi Yang (Cornell Tech)
Honghao Wei (Tsinghua University)
Mor Naaman (Cornell Tech)
Deborah Estrin (Cornell Tech)

Beyond Collaborative Filtering: The List Recommendation Problem (Page 63)
Oren Sar Shalom (Bar Ilan University & IBM Research)
Noam Koenigstein (Microsoft)
Ulrich Paquet (Microsoft)
Hastagiri P. Vanchinathan (ETH Zurich)

Economic Recommendation with Surplus Maximization (Page 73)
Yongfeng Zhang (University of California, Santa Cruz & Tsinghua University)
Qi Zhao (University of California, Santa Cruz)
Yi Zhang (University of California, Santa Cruz)
Daniel Friedman (University of California, Santa Cruz)
Min Zhang (Tsinghua University)
Yiqun Liu (Tsinghua University)
Shaoping Ma (Tsinghua University)

When do Recommender Systems Work the Best? The Moderating Effects of Product Attributes and Consumer Reviews on Recommender Performance (Page 85)
Dokyun Lee (Carnegie Mellon University)
Kartik Hosanagar (University of Pennsylvania)

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Session 3
Session Chair: Ben Zhao (University of California, Santa Barbara)

TrackMeOrNot: Enabling Flexible Control on Web Tracking (Page 99)
Wei Meng (Georgia Institute of Technology)
Byoungyoung Lee (Georgia Institute of Technology)
Xinyu Xing (Pennsylvania State University)
Wenke Lee (Georgia Institute of Technology)

In a World That Counts: Clustering and Detecting Fake Social Engagement at Scale (Page 111)
Yixuan Li (Cornell University)
Oscar Martinez (Google Inc.)
Xing Chen (Google Inc.)
Yi Li (Google Inc.)
John E. Hopcroft (Cornell University)

Tracking the Trackers (Page 121)
Zhonghao Yu (Cliqz)
Sam Macbeth (Cliqz)
Konark Modi (Cliqz)
Josep M. Pujol (Cliqz)

Crowdsourcing Annotations for Websites' Privacy Policies: Can It Really Work? (Page 133)
Shomir Wilson (Carnegie Mellon University)
Florian Schaub (Carnegie Mellon University)
Rohan Ramanath (Carnegie Mellon University)
Norman Sadeh (Carnegie Mellon University)
Fei Liu (University of Central Florida)
Noah A. Smith (University of Washington)
Frederick Liu (Carnegie Mellon University)

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Session 4
Session Chair: Maarten de Rijke

Abusive Language Detection in Online User Content (Page 145)
Chikashi Nobata (Yahoo Labs)
Joel Tetreault (Yahoo Labs)
Achint Thomas (Embibe)
Yashar Mehdad (Yahoo Labs)
Yi Chang (Yahoo Labs)

Hidden Topic Sentiment Model (Page 155)
Md Mustafizur Rahman (University of Virginia)
Hongning Wang (University of Virginia)

Mining Aspect-Specific Opinion using a Holistic Lifelong Topic Model (Page 167)
Shuai Wang (University of Illinois at Chicago)
Zhiyuan Chen (University of Illinois at Chicago)
Bing Liu (University of Illinois at Chicago)

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Session 5
Session Chair: Christo Wilson (Northeastern University)

Mean Field Equilibria for Competitive Exploration in Resource Sharing Settings (Page 177)
Pu Yang (Cornell University)
Krishnamurthy Iyer (Cornell University)
Peter I. Frazier (Cornell University)

A Field Guide to Personalized Reserve Prices (Page 1093)
Renato Paes Leme (Google Research)
Martin Pál (Google Research)
Sergei Vassilvitskii (Google Research)

Competition on Price and Quality in Cloud Computing (Page 1123)
Cinar Kilcioglu (Columbia University)
Justin M. Rao (Microsoft Research)

Mechanism Design for Mixed Bidders (Page 215)
Yoram Bachrach (Microsoft Research)
Sofia Ceppi (The University of Edinburgh)
Ian A. Kash (Microsoft Research)
Peter Key (Microsoft Research)
Mohammad Reza Khani (Microsoft R&D)

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Session 6
Session Chair: Sören Auer (University of Bonn & Fraunhofer IAIS)

Semantics and Expressive Power of Subqueries and Aggregates in SPARQL 1.1 (Page 227)
Mark Kaminski (University of Oxford)
Egor V. Kostylev (University of Oxford)
Bernardo Cuenca Grau (University of Oxford)

Reverse Engineering SPARQL Queries (Page 239)
Marcelo Arenas (Pontificia Universidad Católica de Chile)
Gonzalo I. Diaz (University of Oxford)
Egor V. Kostylev (University of Oxford)

Profiling the Potential of Web Tables for Augmenting Cross-domain Knowledge Bases (Page 251)
Dominique Ritze (University of Mannheim)
Oliver Lehmberg (University of Mannheim)
Yaser Oulabi (University of Mannheim)
Christian Bizer (University of Mannheim)

Foundations of JSON Schema (Page 263)
Felipe Pezoa (Pontificia Universidad Católica de Chile)
Juan L. Reutter (Pontificia Universidad Católica de Chile)
Fernando Suarez (Pontificia Universidad Católica de Chile)
Martín Ugarte (Université Libre de Bruxelless)
Domagoj Vrgoč (Pontificia Universidad Católica de Chile)

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Session 7
Session Chair: Yizhou Sun (Northeastern University)

Mining Online Social Data for Detecting Social Network Mental Disorders (Page 275)
Hong-Han Shuai (Academia Sinica)
Chih-Ya Shen (Academia Sinica)
De-Nian Yang (Academia Sinica)
Yi-Feng Lan (Tamkang University)
Wang-Chien Lee (The Pennsylvania State University)
Philip S. Yu (University of Illinois at Chicago & Tsinghua University)
Ming-Syan Chen (National Taiwan University)

Visualizing Large-scale and High-dimensional Data (Page 287)
Jian Tang (Microsoft Research Asia)
Jingzhou Liu (Peking University)
Ming Zhang (Peking University)
Qiaozhu Mei (University of Michigan)

Predicting Pre-click Quality for Native Advertisements (Page 299)
Ke Zhou (Yahoo Labs)
Miriam Redi (Yahoo Labs)
Andrew Haines (Yahoo Labs)
Mounia Lalmas (Yahoo Labs)

The Lifecycle and Cascade of WeChat Social Messaging Groups (Page 311)
Jiezhong Qiu (Tsinghua University)
Yixuan Li (Cornell University)
Jie Tang (Tsinghua University)
Zheng Lu (Tencent Corporation)
Hao Ye (Tencent Corporation)
Bo Chen (Tencent Corporation)
Qiang Yang (Hong Kong University of Science and Technology)
John E. Hopcroft (Cornell University)

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Session 8
Session Chair: Alan Mislove (Northeastern)

Characterizing Long-tail SEO Spam on Cloud Web Hosting Services (Page 321)
Xiaojing Liao (Georgia Institute of Technology)
Chang Liu (University of Maryland)
Damon McCoy (New York University)
Elaine Shi (Cornell University)
Shuang Hao (University of California, Santa Barbara)
Raheem Beyah (Georgia Institute of Technology)

Automatic Extraction of Indicators of Compromise for Web Applications (Page 333)
Onur Catakoglu (Eurecom & Monaco Digital Security Agency)
Marco Balduzzi (Trend Micro Research)
Davide Balzarotti (Eurecom)

Cracking Classifiers for Evasion: A Case Study on the Google's Phishing Pages Filter (Page 345)
Bin Liang (Renmin University of China)
Miaoqiang Su (Renmin University of China)
Wei You (Renmin University of China)
Wenchang Shi (Renmin University of China)
Gang Yang (Renmin University of China)

Understanding the Detection of View Fraud in Video Content Portals (Page 357)
Miriam Marciel (NEC Labs Europe & Universidad Carlos III de Madrid)
Rubén Cuevas (Universidad Carlos III de Madrid)
Albert Banchs (IMDEA Networks Institute & Universidad Carlos III de Madrid)
Roberto González (NEC Labs Europe)
Stefano Traverso (Politecnico di Torino)
Mohamed Ahmed (NEC Labs Europe)
Arturo Azcorra (IMDEA Networks Institute & Universidad Carlos III de Madrid)

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Session 9
Session Chair: Cristian Joel Tetreault

On the Temporal Dynamics of Opinion Spamming: Case Studies on Yelp (Page 369)
Santosh K C (University of Houston)
Arjun Mukherjee (University of Houston)

Scaling up Dynamic Topic Models (Page 381)
Arnab Bhadury (Tsinghua University)
Jianfei Chen (Tsinghua University)
Jun Zhu (Tsinghua University)
Shixia Liu (Tsinghua University)

Learning Global Term Weights for Content-based Recommender Systems (Page 391)
Yupeng Gu (Northeastern University)
Bo Zhao (LinkedIn Corp)
David Hardtke (LinkedIn Corp)
Yizhou Sun (Northeastern University)

Exploring Patterns of Identity Usage in Tweets: A New Problem, Solution and Case Study (Page 401)
Kenneth Joseph (Carnegie Mellon University)
Wei Wei (Carnegie Mellon University)
Kathleen M. Carley (Carnegie Mellon University)

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Session 10
Session Chair: Anastasios Noulas (University of Lancaster)

The Death and Life of Great Italian Cities: A Mobile Phone Data Perspective (Page 413)
Marco De Nadai (Fondazione Bruno Kessler & University of Trento)
Jacopo Staiano (Sorbonne Universités)
Roberto Larcher (SKIL & Telecom Italia)
Nicu Sebe (University of Trento)
Daniele Quercia (Bell Labs)
Bruno Lepri (Fondazione Bruno Kessler)

Beyond the Baseline: Establishing the Value in Mobile Phone Based Poverty Estimates (Page 425)
Christopher Smith-Clarke (University College London)
Licia Capra (University College London)

Pushing the Frontier: Exploring the African Web Ecosystem (Page 435)
Rodérick Fanou (IMDEA Networks Institute & Universidad Carlos III de Madrid)
Gareth Tyson (Queen Mary University of London)
Pierre Francois (Cisco Systems, Inc)
Arjuna Sathiaseelan (University of Cambridge)

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Session 11
Session Chair: Alessandra Sala (Bell Labs)

Latent Space Model for Multi-Modal Social Data (Page 447)
Yoon-Sik Cho (University of Southern California)
Greg Ver Steeg (University of Southern California)
Emilio Ferrara (University of Southern California)
Aram Galstyan (University of Southern California)

Modeling a Retweet Network via an Adaptive Bayesian Approach (Page 459)
Bin Bi (Microsoft Research)
Junghoo Cho (University of California, Los Angeles)

On Sampling Nodes in a Network (Page 471)
Flavio Chiericetti (Sapienza University)
Anirban Dasgupta (IIT)
Ravi Kumar (Google)
Silvio Lattanzi (Google)
Tamás Sarlós (Google)

Distributed Estimation of Graph 4-Profiles (Page 483)
Ethan R. Elenberg (The University of Texas)
Karthikeyan Shanmugam (The University of Texas)
Michael Borokhovich (The University of Texas)
Alexandros G. Dimakis (The University of Texas)

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Session 12
Session Chair: Mounia Lalmas (Yahoo Labs)

Detecting Good Abandonment in Mobile Search (Page 495)
Kyle Williams (The Pennsylvania State University)
Julia Kiseleva (Eindhoven University of Technology)
Aidan C. Crook (Microsoft)
Imed Zitouni (Microsoft)
Ahmed Hassan Awadallah (Microsoft)
Madian Khabsa (Microsoft)

Ups and Downs: Modeling the Visual Evolution of Fashion Trends with One-Class Collaborative Filtering (Page 507)
Ruining He (University of California, San Diego)
Julian McAuley (University of California, San Diego)

Modeling User Consumption Sequences (Page 519)
Austin R. Benson (Stanford University)
Ravi Kumar (Google Inc.)
Andrew Tomkins (Google Inc.)

A Neural Click Model for Web Search (Page 531)
Alexey Borisov (Yandex & University of Amsterdam)
Ilya Markov (University of Amsterdam)
Maarten de Rijke (University of Amsterdam)
Pavel Serdyukov (Yandex)

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Session 13
Session Chair: Marc Najork

Query-Less: Predicting Task Repetition for NextGen Proactive Search and Recommendation Engines (Page 543)
Yang Song (Microsoft Research)
Qi Guo (Microsoft)

Behavior Driven Topic Transition for Search Task Identification (Page 555)
Liangda Li (East China Normal University & Yahoo Labs)
Hongbo Deng (Yahoo Labs)
Yunlong He (Yahoo Labs)
Anlei Dong (Yahoo Labs)
Yi Chang (Yahoo Labs)
Hongyuan Zha (East China Normal University & Georgia Institute of Technology)

A Piggyback System for Joint Entity Mention Detection and Linking in Web Queries (Page 567)
Marco Cornolti (University of Pisa)
Paolo Ferragina (University of Pisa)
Massimiliano Ciaramita (Google)
Stefan Rüd (University of Munich)
Hinrich Schütze (University of Munich)

Towards Mobile Query Auto-Completion: An Efficient Mobile Application-Aware Approach (Page 579)
Aston Zhang (University of Illinois at Urbana-Champaign)
Amit Goyal (Yahoo Labs)
Ricardo Baeza-Yates (Yahoo Labs)
Yi Chang (Yahoo Labs)
Jiawei Han (University of Illinois at Urbana-Champaign)
Carl A. Gunter (University of Illinois at Urbana-Champaign)
Hongbo Deng (Yahoo Labs)

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Session 14
Session Chair: Philippe Cudré-Mauroux (University of Fribourg)

Disinformation on the Web: Impact, Characteristics, and Detection of Wikipedia Hoaxes (Page 591)
Srijan Kumar (University of Maryland)
Robert West (Stanford University)
Jure Leskovec (Stanford University)

Tweet Properly: Analyzing Deleted Tweets to Understand and Identify Regrettable Ones (Page 603)
Lu Zhou (Wright State University)
Wenbo Wang (Wright State University)
Keke Chen (Wright State University)

Winning Arguments: Interaction Dynamics and Persuasion Strategies in Good-faith Online Discussions (Page 613)
Chenhao Tan (Cornell University)
Vlad Niculae (Cornell University)
Cristian Danescu-Niculescu-Mizil (Cornell University)
Lillian Lee (Cornell University)

Addressing Complex and Subjective Product-Related Queries with Customer Reviews (Page 625)
Julian McAuley (University of California, San Diego)
Alex Yang (University of California, San Diego)

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Session 15
Session Chair: Laura Hollink (VU University Amsterdam)

A Robust Framework for Estimating Linguistic Alignment in Twitter Conversations (Page 637)
Gabriel Doyle (Stanford University)
Dan Yurovsky (Stanford University)
Michael C. Frank (Stanford University)

Detecting Evolution of Concepts based on Cause-Effect Relationships in Online Reviews (Page 649)
Yating Zhang (Kyoto University)
Adam Jatowt (Kyoto University)
Katsumi Tanaka (Kyoto University)

The QWERTY Effect on the Web: How Typing Shapes the Meaning of Words in Online Human-Computer Interaction (Page 661)
David Garcia (ETH Zurich)
Markus Strohmaier (GESIS - Leibniz Institute for the Social Sciences & University of Koblenz-Landau)

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Session 16
Session Chair: Silvio Lattanzi (Google)

Do Cascades Recur? (Page 671)
Justin Cheng (Stanford University)
Lada A. Adamic (Facebook)
Jon Kleinberg (Cornell University)
Jure Leskovec (Stanford University)

Exploring Limits to Prediction in Complex Social Systems (Page 683)
Travis Martin (University of Michigan)
Jake M. Hofman (Microsoft Research)
Amit Sharma (Microsoft Research)
Ashton Anderson (Microsoft Research)
Duncan J. Watts (Microsoft Research)

TribeFlow: Mining & Predicting User Trajectories (Page 695)
Flavio Figueiredo (Universidade Federal de Minas Gerais & IBM Research Brazil)
Bruno Ribeiro (Purdue University & Carnegie Mellon University)
Jussara M. Almeida (Universidade Federal de Minas Gerais)
Christos Faloutsos (Carnegie Mellon University)

Linking Users Across Domains with Location Data: Theory and Validation (Page 707)
Christopher Riederer (Columbia Univeristy)
Yunsung Kim (Columbia Univeristy)
Augustin Chaintreau (Columbia Univeristy)
Nitish Korula (Google Research)
Silvio Lattanzi (Google Research)

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Session 17
Session Chair: Zhenhui Jessie Li

Exploiting Dining Preference for Restaurant Recommendation (Page 725)
Fuzheng Zhang (Microsoft Research)
Nicholas Jing Yuan (Microsoft Research)
Kai Zheng (University of Queensland)
Defu Lian (University of Electronic Science and Technology of China)
Xing Xie (Microsoft Research)
Yong Rui (Microsoft Research)

Non-Linear Mining of Competing Local Activities (Page 737)
Yasuko Matsubara (Kumamoto University)
Yasushi Sakurai (Kumamoto University)
Christos Faloutsos (Carnegie Mellon University)

PCT: Partial Co-Alignment of Social Networks (Page 749)
Jiawei Zhang (University of Illinois at Chicago)
Philip S. Yu (University of Illinois at Chicago, Tsinghua University)

Improving Post-Click User Engagement on Native Ads via Survival Analysis (Page 761)
Nicola Barbieri (Yahoo Labs)
Fabrizio Silvestri (Yahoo Labs)
Mounia Lalmas (Yahoo Labs)

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Session 18
Session Chair: Yoelle Maarek

Table Cell Search for Question Answering (Page 771)
Huan Sun (University of California, Santa Barbara)
Hao Ma (Microsoft Research)
Xiaodong He (Microsoft Research)
Wen-tau Yih (Microsoft Research)
Yu Su (University of California, Santa Barbara)
Xifeng Yan (University of California, Santa Barbara)

Identifying Web Queries with Question Intent (Page 783)
Gilad Tsur (Yahoo Labs)
Yuval Pinter (Yahoo Labs)
Idan Szpektor (Yahoo Labs)
David Carmel (Yahoo Labs)

A Study of Retrieval Models for Long Documents and Queries in Information Retrieval (Page 795)
Ronan Cummins (University of Cambridge)

Effective Construction of Relative Lempel-Ziv Dictionaries (Page 807)
Kewen Liao (The University of Melbourne)
Matthias Petri (The University of Melbourne)
Alistair Moffat (The University of Melbourne)
Anthony Wirth (The University of Melbourne)

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Session 19
Session Chair: Julian McAuley (University of California, San Diego)

Just in Time: Controlling Temporal Performance in Crowdsourcing Competitions (Page 817)
Markus Rokicki (L3S Research Center)
Sergej Zerr (University of Southampton)
Stefan Siersdorfer (Consultant)

Averaging Gone Wrong: Using Time-Aware Analyses to Better Understand Behavior (Page 829)
Samuel Barbosa (University of Săo Paulo)
Dan Cosley (Cornell University)
Amit Sharma (Microsoft Research)
Roberto M. Cesar-Jr (University of Săo Paulo)

Using Hierarchical Skills for Optimized Task Assignment in Knowledge-Intensive Crowdsourcing (Page 843)
Panagiotis Mavridis (Université de Rennes 1)
David Gross-Amblard (Université de Rennes 1)
Zoltán Miklós (Université de Rennes 1)

Scheduling Human Intelligence Tasks in Multi-Tenant Crowd-Powered Systems (Page 855)
Djellel Eddine Difallah (University of Fribourg)
Gianluca Demartini (University of Sheffield)
Philippe Cudré-Mauroux (University of Fribourg)

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Session 20
Session Chair: Stephane B. Bazan (Université Saint-Joseph de Beyrouth)

MapWatch: Detecting and Monitoring International Border Personalization on Online Maps (Page 867)
Gary Soeller (Northeastern University)
Karrie Karahalios (University of Illinois at Urbana-Champaign)
Christian Sandvig (University of Michigan)
Christo Wilson (Northeastern University)

What Links Alice and Bob? Matching and Ranking Semantic Patterns in Heterogeneous Networks (Page 879)
Jiongqian Liang (The Ohio State University)
Deepak Ajwani (Bell Labs Ireland)
Patrick K. Nicholson (Bell Labs Ireland)
Alessandra Sala (Bell Labs Ireland)
Srinivasan Parthasarathy (The Ohio State University)

An Empirical Study of Web Cookies (Page 891)
Aaron Cahn (comScore)
Scott Alfeld (University of Wisconsin-Madison)
Paul Barford (comScore & University of Wisconsin-Madison)
S. Muthukrishnan (Rutgers University & Microsoft India)

From Social Machines to Social Protocols: Software Engineering Foundations for Sociotechnical Systems (Page 903)
Amit K. Chopra (Lancaster University)
Munindar P. Singh (North Carolina State University)

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Session 21
Session Chair: Avigdor Gal

As Time Goes By: Comprehensive Tagging of Textual Phrases with Temporal Scopes (Page 915)
Erdal Kuzey (Max Planck Institute for Informatics)
Vinay Setty (Max Planck Institute for Informatics)
Jannik Strötgen (Max Planck Institute for Informatics)
Gerhard Weikum (Max Planck Institute for Informatics)

Probabilistic Bag-of-Hyperlinks Model for Entity Linking (Page 927)
Octavian-Eugen Ganea (ETH Zurich)
Marina Ganea (ETH Zurich)
Aurelien Lucchi (ETH Zurich)
Carsten Eickhoff (ETH Zurich)
Thomas Hofmann (ETH Zurich)

Discovering Structure in the Universe of Attribute Names (Page 939)
Alon Halevy (Recruit Institute of Technology)
Natalya Noy (Google Research)
Sunita Sarawagi (Google Research & IIT Bombay)
Steven Euijong Whang (Google Research)
Xiao Yu (Google Research)

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Session 22
Session Chair: Ricardo Baeza-Yates

Modeling User Exposure in Recommendation (Page 951)
Dawen Liang (Columbia University)
Laurent Charlin (McGill University)
James McInerney (Columbia University)
David M. Blei (Columbia University)

On the Relevance of Irrelevant Alternatives (Page 963)
Austin R. Benson (Stanford University)
Ravi Kumar (Google Inc.)
Andrew Tomkins (Google Inc.)

Growing Wikipedia Across Languages via Recommendation (Page 975)
Ellery Wulczyn (Wikimedia Foundation)
Robert West (Stanford University)
Leila Zia (Wikimedia Foundation)
Jure Leskovec (Stanford University)

Using Shortlists to Support Decision Making and Improve Recommender System Performance (Page 987)
Tobias Schnabel (Cornell University)
Paul N. Bennett (Microsoft Research)
Susan T. Dumais (Microsoft Research)
Thorsten Joachims (Cornell University)

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Session 23
Session Chair: TBA

Tell Me About Yourself: The Malicious CAPTCHA Attack (Page 999)
Nethanel Gelernter (College of Management Academic Studies)
Amir Herzberg (Bar Ilan University)

Remedying Web Hijacking: Notification Effectiveness and Webmaster Comprehension (Page 1009)
Frank Li (University of California, Berkeley)
Grant Ho (University of California, Berkeley)
Eric Kuan (Google Inc.)
Yuan Niu (Google Inc.)
Lucas Ballard (Google Inc.)
Kurt Thomas (Google Inc.)
Elie Bursztein (Google Inc.)
Vern Paxson (University of California, Berkeley)

No Honor Among Thieves: A Large-Scale Analysis of Malicious Web Shells (Page 1021)
Oleksii Starov (Stony Brook University)
Johannes Dahse (Ruhr-University Bochum)
Syed Sharique Ahmad (Stony Brook University)
Thorsten Holz (Ruhr-University Bochum)
Nick Nikiforakis (Stony Brook University)

Stress Testing the Booters: Understanding and Undermining the Business of DDoS Services (Page 1033)
Mohammad Karami (George Mason University)
Youngsam Park (University of Maryland, College Park)
Damon McCoy (New York University)

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Session 24
Session Chair: Ben Zhao (University of California, Santa Barbara)

N-gram over Context (Page 1045)
Noriaki Kawamae (NTT Comware)

Representing Documents via Latent Keyphrase Inference (Page 1057)
Jialu Liu (University of Illinois at Urbana-Champaign)
Xiang Ren (University of Illinois at Urbana-Champaign)
Jingbo Shang (University of Illinois at Urbana-Champaign)
Taylor Cassidy (Army Research Lab)
Clare R. Voss (Army Research Lab)
Jiawei Han (University of Illinois at Urbana-Champaign)

Unsupervised, Efficient and Semantic Expertise Retrieval (Page 1069)
Christophe Van Gysel (University of Amsterdam)
Maarten de Rijke (University of Amsterdam)
Marcel Worring (University of Amsterdam)

Using Metafeatures to Increase the Effectiveness of Latent Semantic Models in Web Search (Page 1081)
Alexey Borisov (Yandex & University of Amsterdam)
Pavel Serdyukov (Yandex)
Maarten de Rijke (University of Amsterdam)

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Session 25
Session Chair: Peter Key

Bayesian Budget Feasibility with Posted Pricing (Page 189)
Eric Balkanski (Harvard University)
Jason D. Hartline (Northwestern University)

People and Cookies: Imperfect Treatment Assignment in Online Experiments (Page 1103)
Dominic Coey (Facebook)
Michael Bailey (Facebook)

Objective Variables for Probabilistic Revenue Maximization in Second-Price Auctions with Reserve (Page 1113)
Maja R. Rudolph (Columbia University)
Joseph G. Ellis (Columbia University)
David M. Blei (Columbia University)

Competition on Price and Quality in Cloud Computing (Page 1123)
Cinar Kilcioglu (Columbia University)
Justin M. Rao (Microsoft Research)

Understanding User Economic Behavior in the City Using Large-scale Geotagged and Crowdsourced Data (Page 205)
Yingjie Zhang (Carnegie Mellon University)
Beibei Li (Carnegie Mellon University)
Jason Hong (Carnegie Mellon University)

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Session 26A
Session Chair: Christian Bizer (University of Mannheim)

IncApprox: A Data Analytics System for Incremental Approximate Computing (Page 1133)
Dhanya R. Krishnan (TU Dresden)
Do Le Quoc (TU Dresden)
Pramod Bhatotia (TU Dresden)
Christof Fetzer (TU Dresden)
Rodrigo Rodrigues (University Lisbon & INESC-ID)

From Diversity-based Prediction to Better Ontology & Schema Matching (Page 1145)
Avigdor Gal (Technion - Israel Institute of Technology)
Haggai Roitman (IBM Research - Haifa)
Tomer Sagi (Technion - Israel Institute of Technology)

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Session 26B
Session Chair: Julian McAuley (University of California, San Diego)

The Effect of Recommendations on Network Structure (Page 1157)
Jessica Su (Stanford University)
Aneesh Sharma (Twitter)
Sharad Goel (Stanford University)

Gender, Productivity, and Prestige in Computer Science Faculty Hiring Networks (Page 1169)
Samuel F. Way (University of Colorado at Boulder)
Daniel B. Larremore (Santa Fe Institute)
Aaron Clauset (University of Colorado at Boulder)

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Session 27A
Session Chair: Qiaozhu Mei

Which to View: Personalized Prioritization for Broadcast Emails (Page 1181)
Beidou Wang (Zhejiang University & Simon Fraser University)
Martin Ester (Simon Fraser University)
Jiajun Bu (Zhejiang University)
Yu Zhu (Zhejiang University)
Ziyu Guan (Northwest University of China)
Deng Cai (Zhejiang University)

Learning-to-Rank for Real-Time High-Precision Hashtag Recommendation for Streaming News (Page 1191)
Bichen Shi (University College Dublin)
Georgiana Ifrim (University College Dublin)
Neil Hurley (University College Dublin)

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Session 27B
Session Chair: Pavel Serdyukov (Yandex)

Discovery of Topical Authorities in Instagram (Page 1203)
Aditya Pal (Facebook)
Amaç Herdağdelen (Facebook)
Sourav Chatterji (Facebook)
Sumit Taank (Facebook)
Deepayan Chakrabarti (University of Texas)

Did You Say U2 or YouTube? Inferring Implicit Transcripts from Voice Search Logs (Page 1215)
Milad Shokouhi (Microsoft)
Umut Ozertem (Microsoft)
Nick Craswell (Microsoft)

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Session 28A
Session Chair: Alfredo Cuzzocrea (University of Trieste)

Where Can I Buy a Boulder? Searching for Offline Retail Locations (Page 1225)
Sandro Bauer (University of Cambridge)
Filip Radlinski (Microsoft)
Ryen W. White (Microsoft)

Exploiting Green Energy to Reduce the Operational Costs of Multi-Center Web Search Engines (Page 1237)
Roi Blanco (Yahoo Labs)
Matteo Catena (Gran Sasso Science Institute)
Nicola Tonellotto (ISTI-CNR)

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Session 28B
Session Chair: Alfredo Cuzzocrea (University of Trieste)

Strengthening Weak Identities Through Inter-Domain Trust Transfer (Page 1249)
Giridhari Venkatadri (MPI-SWS)
Oana Goga (MPI-SWS)
Changtao Zhong (King's College London)
Bimal Viswanath (Nokia Bell Labs)
Krishna P. Gummadi (MPI-SWS)
Nishanth Sastry (King's College London)

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Session 29A
Session Chair: Cristian Danescu-Niculescu-Mizil

Entity Disambiguation with Linkless Knowledge Bases (Page 1261)
Yang Li (University of California, Santa Barbara)
Shulong Tan (University of California, Santa Barbara)
Huan Sun (University of California, Santa Barbara)
Jiawei Han (University of Illinois at Urbana-Champaign)
Dan Roth (University of Illinois at Urbana-Champaign)
Xifeng Yan (University of California, Santa Barbara)

Joint Recognition and Linking of Fine-Grained Locations from Tweets (Page 1271)
Zongcheng Ji (Nanyang Technological University)
Aixin Sun (Nanyang Technological University)
Gao Cong (Nanyang Technological University)
Jialong Han (Nanyang Technological University)

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Session 29B
Session Chair: Amit Sharma

Internet Collaboration on Extremely Difficult Problems: Research versus Olympiad Questions on the Polymath Site (Page 1283)
Isabel Kloumann (Cornell University)
Chenhao Tan (Cornell University)
Jon Kleinberg (Cornell University)
Lillian Lee (Cornell University)

The Communication Network Within the Crowd (Page 1293)
Ming Yin (Harvard University)
Mary L. Gray (Microsoft Research)
Siddharth Suri (Microsoft Research)
Jennifer Wortman Vaughan (Microsoft Research)

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Session 30A
Session Chair: Xing Xie (Microsoft Research)

An In-depth Study of Mobile Browser Performance (Page 1305)
Javad Nejati (Stony Brook University)
Aruna Balasubramanian (Stony Brook University)

The Case for Robotic Wireless Networks (Page 1317)
Mahanth Gowda (University of Illinois at Urbana-Champaign)
Ashutosh Dhekne (University of Illinois at Urbana-Champaign)
Romit Roy Choudhury (University of Illinois at Urbana-Champaign)

GoCAD: GPU-Assisted Online Content-Adaptive Display Power Saving for Mobile Devices in Internet Streaming (Page 1329)
Yao Liu (SUNY Binghamton)
Mengbai Xiao (George Mason University)
Ming Zhang (George Mason University)
Xin Li (Samsung Telecommunications America)
Mian Dong (AT International, Inc.)
Zhan Ma (Nanjing University)
Zhenhua Li (Tsinghua University)
Songqing Chen (George Mason University)

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Session 30B
Session Chair: Xing Xie (Microsoft Research)

An Empirical Analysis of Algorithmic Pricing on Amazon Marketplace (Page 1339)
Le Chen (Northeastern University)
Alan Mislove (Northeastern University)
Christo Wilson (Northeastern University)

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Session 31
Session Chair: Sebastian Schaffert

Voting with Their Feet: Inferring User Preferences from App Management Activities (Page 1351)
Huoran Li (Peking University)
Wei Ai (University of Michigan)
Xuanzhe Liu (Peking University)
Jian Tang (Microsoft Research)
Gang Huang (Peking University)
Feng Feng (Wandoujia Lab)
Qiaozhu Mei (University of Michigan)

User Fatigue in Online News Recommendation (Page 1363)
Hao Ma (Microsoft Research)
Xueqing Liu (University of Illinois at Urbana-Champaign)
Zhihong Shen (Microsoft Research)

Mining User Intentions from Medical Queries: A Neural Network Based Heterogeneous Jointly Modeling Approach (Page 1373)
Chenwei Zhang (University of Illinois at Chicago)
Wei Fan (Baidu Research Big Data Lab)
Nan Du (Baidu Research Big Data Lab)
Philip S. Yu (University of Illinois at Chicago & Tsinghua University)

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Session 32
Session Chair: Chenwei Zhang

Who Benefits from the "Sharing" Economy of Airbnb? (Page 1385)
Giovanni Quattrone (University College of London)
Davide Proserpio (Boston University, USA)
Daniele Quercia (Bell Laboratories)
Licia Capra (University College London)
Mirco Musolesi (University College London)

Socialized Language Model Smoothing via Bi-directional Influence Propagation on Social Networks (Page 1395)
Rui Yan (Central China Normal University & Baidu Inc.)
Cheng-Te Li (Academia Sinica)
Hsun-Ping Hsieh (Air Force Institute of Technology)
Po Hu (Central China Normal University)
Xiaohua Hu (Central China Normal University & Drexel University)
Tingting He (Central China Normal University)

Collaborative Nowcasting for Contextual Recommendation (Page 1407)
Yu Sun (University of Melbourne & Microsoft Research)
Nicholas Jing Yuan (Microsoft Research)
Xing Xie (Microsoft Research)
Kieran McDonald (Microsoft Corporation)
Rui Zhang (University of Melbourne)

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Session 33
Session Chair: Rui Yan

From Freebase to Wikidata: The Great Migration (Page 1419)
Thomas Pellissier Tanon (Google)
Denny Vrandecic (Google)
Sebastian Schaffert (Google)
Thomas Steiner (Google)
Lydia Pintscher (Wikimedia)

Automatic Discovery of Attribute Synonyms Using Query Logs and Table Corpora (Page 1429)
Yeye He (Microsoft Research)
Kaushik Chakrabarti (Microsoft Research)
Tao Cheng (Pinterest, Inc.)
Tomasz Tylenda (Max-Planck Institute for Informatics)