WWW 2014 Proceedings Table of Contents

WWW 2015 General Chairs' Welcome
Aldo Gangemi (National Research Council)
Stefano Leonardi (Sapienza University of Rome)
Alessandro Panconesi (Sapienza University of Rome)

WWW 2015 Program Chairs' Welcome
Krishna Gummadi (Max Planck Institute for Software Systems)
Chengxiang Zhai (University of Illinois at Urbana-Champaign)

WWW 2015 Organization & Committees

WWW 2015 Program Committee Members

WWW 2015 Proceedings
Listed alphabetically by lead author

Optimizing Display Advertising in Online Social Networks (Page 1)
Zeinab Abbassi (Columbia University)
Aditya Bhaskara (Google Research)
Vishal Misra (Columbia University)

Frankenplace: Interactive Thematic Mapping for Ad Hoc Exploratory Search (Page 12)
Benjamin Adams (The University of Auckland)
Grant McKenzie (University of California, Santa Barbara)
Mark Gahegan (The University of Auckland)

Towards Reconciling SPARQL and Certain Answers (Page 23)
Shqiponja Ahmetaj (Vienna University of Technology)
Wolfgang Fischl (Vienna University of Technology)
Reinhard Pichler (Vienna University of Technology)
Mantas Šimkus (Vienna University of Technology)
Sebastian Skritek (Vienna University of Technology)

Donor Retention in Online Crowdfunding Communities: A Case Study of DonorsChoose.org (Page 34)
Tim Althoff (Stanford University)
Jure Leskovec (Stanford University)

Budget-Constrained Item Cold-Start Handling in Collaborative Filtering Recommenders via Optimal Design (Page 45)
Oren Anava (Technion, Israel)
Shahar Golan (Yahoo Labs, Israel)
Nadav Golbandi (Yahoo Labs, Israel)
Zohar Karnin (Yahoo Labs, Israel)
Ronny Lempel (Outbrain Inc., Israel)
Oleg Rokhlenko (Yahoo Labs, Israel)
Oren Somekh (Yahoo Labs, Israel)

Improved Theoretical and Practical Guarantees for Chromatic Correlation Clustering (Page 55)
Yael Anava (Technion, Israel)
Noa Avigdor-Elgrabli (Yahoo Labs, Israel)
Iftah Gamzu (Yahoo Labs, Israel)

Global Diffusion via Cascading Invitations: Structure, Growth, and Homophily (Page 66)
Ashton Anderson (Stanford University)
Daniel Huttenlocher (Cornell University)
Jon Kleinberg (Cornell University)
Jure Leskovec (Stanford University)
Mitul Tiwari (LinkedIn Corporation)

Recommendation Subgraphs for Web Discovery (Page 77)
Arda Antikacioglu (Carnegie Mellon University)
R. Ravi (Carnegie Mellon University)
Srinath Sridhar (BloomReach Inc.)

Is Sniping a Problem for Online Auction Markets? (Page 88)
Matt Backus (Cornell University and eBay Research Labs)
Thomas Blake (eBay Research Labs)
Dimitriy V. Masterov (eBay Research Labs)
Steven Tadelis (UC Berkeley, NBER, and eBay Research Labs)

Essential Web Pages Are Easy to Find (Page 97)
Ricardo Baeza-Yates (Yahoo Labs, Barcelona)
Paolo Boldi (Università degli Studi di Milano)
Flavio Chierichetti (Sapienza University of Rome)

Design and Analysis of Benchmarking Experiments for Distributed Internet Services (Page 108)
Eytan Bakshy (Facebook, Menlo Park)
Eitan Frachtenberg (Facebook, Menlo Park)

ACCAMS: Additive Co-Clustering to Approximate Matrices Succinctly (Page 119)
Alex Beutel (Carnegie Mellon University)
Amr Ahmed (Google Strategic Technologies)
Alexander J. Smola (Carnegie Mellon University & Google ST)

Who, What, When, and Where: Multi-Dimensional Collaborative Recommendations Using Tensor Factorization on Sparse User-Generated Data (Page 130)
Preeti Bhargava (University of Maryland, College Park)
Thomas Phan (Samsung Research America - Silicon Valley)
Jiayu Zhou (Samsung Research America - Silicon Valley)
Juhan Lee (Samsung Research America - Silicon Valley)

Secrets, Lies, and Account Recovery: Lessons From the Use of Personal Knowledge Questions at Google (Page 141)
Joseph Bonneau (Stanford University & EFF)
Elie Bursztein (Google)
Ilan Caron (Google)
Rob Jackson (Google)
Mike Williamson (Google)

Supporting Ethical Web Research: A New Research Ethics Review (Page 151)
Anne Bowser (University of Maryland)
Janice Y. Tsai (Microsoft Research)

Sequential Hypothesis Tests for Adaptive Locality Sensitive Hashing (Page 162)
Aniket Chakrabarti (The Ohio State University)
Srinivasan Parthasarathy (The Ohio State University)

Opinion Spam Detection in Web Forum: A Real Case Study (Page 173)
Yu-Ren Chen (National Taiwan University)
Hsin-Hsi Chen (National Taiwan University)

Summarizing Entity Descriptions for Effective and Efficient Human-centered Entity Linking (Page 184)
Gong Cheng (Nanjing University)
Danyun Xu (Nanjing University)
Yuzhong Qu (Nanjing University)

Semantic Tagging of Mathematical Expressions (Page 195)
Pao-Yu Chien (National Taiwan University)
Pu-Jen Cheng (National Taiwan University)

Collaborative Ranking with a Push at the Top (Page 205)
Konstantina Christakopoulou (University of Minnesota, Twin Cities)
Arindam Banerjee (University of Minnesota, Twin Cities)

Parallel Streaming Signature EM-Tree: A Clustering Algorithm for Web Scale Applications (Page 216)
Christopher M. De Vries (Game Analytics ApS, Germany)
Lance De Vine (Queensland University of Technology)
Shlomo Geva (Queensland University of Technology)
Richi Nayak (Queensland University of Technology)

Network-based Origin Confusion Attacks against HTTPS Virtual Hosting (Page 227)
Antoine Delignat-Lavaud (Inria Paris-Rocquencourt)
Karthikeyan Bhargavan (Inria Paris-Rocquencourt)

The Dynamics of Micro-Task Crowdsourcing: The Case of Amazon MTurk (Page 238)
Djellel Eddine Difallah (University of Fribourg)
Michele Catasta (École Polytechnique Fédérale de Lausanne)
Gianluca Demartini (University of Sheffield)
Panagiotis G. Ipeirotis (New York University)
Philippe Cudré-Mauroux (University of Fribourg)

Hierarchical Neural Language Models for Joint Representation of Streaming Documents and Their Content (Page 248)
Nemanja Djuric (Yahoo Labs, Sunnyvale)
Hao Wu (University of Southern California)
Vladan Radosavljevic (Yahoo Labs, Sunnyvale)
Mihajlo Grbovic (Yahoo Labs, Sunnyvale)
Narayan Bhamidipati (Yahoo Labs, Sunnyvale)

Future User Engagement Prediction and Its Application to Improve the Sensitivity of Online Experiments (Page 256)
Alexey Drutsa (Yandex, Moscow, Russia)
Gleb Gusev (Yandex, Moscow, Russia)
Pavel Serdyukov (Yandex, Moscow, Russia)

Enriching Structured Knowledge with Open Information (Page 267)
Arnab Dutta (University of Mannheim)
Christian Meilicke (University of Mannheim)
Heiner Stuckenschmidt (University of Mannheim)

A Multi-View Deep Learning Approach for Cross Domain User Modeling in Recommendation Systems (Page 278)
Ali Elkahky (Columbia University)
Yang Song (Microsoft Research, Redmond, WA)
Xiaodong He (Microsoft Research, Redmond, WA)

Cookies That Give You Away: The Surveillance Implications of Web Tracking (Page 289)
Steven Englehardt (Princeton University)
Dillon Reisman (Princeton University)
Christian Eubank (Princeton University)
Peter Zimmerman (Princeton University)
Jonathan Mayer (Stanford University)
Arvind Narayanan (Princeton University)
Edward W. Felten (Princeton University)

Efficient Densest Subgraph Computation in Evolving Graphs (Page 300)
Alessandro Epasto (Brown University, Providence)
Silvio Lattanzi (Google, Inc., New York)
Mauro Sozio (Institut Mines-Télécom, Télécom ParisTech, CNRS LTCI, Paris)

A Practical Framework for Privacy-Preserving Data Analytics (Page 311)
Liyue Fan (University of Southern California)
Hongxia Jin (Samsung R&D Research Center, San Jose)

Compressed Indexes for String Searching in Labeled Graphs (Page 322)
Paolo Ferragina (University of Pisa)
Francesco Piccinno (University of Pisa)
Rossano Venturini (University of Pisa)

Improving Paid Microtasks through Gamification and Adaptive Furtherance Incentives (Page 333)
Oluwaseyi Feyisetan (University of Southampton, UK)
Elena Simperl (University of Southampton, UK)
Max Van Kleek (University of Southampton, UK)
Nigel Shadbolt (University of Southampton, UK)

Tagging Personal Photos with Transfer Deep Learning (Page 344)
Jianlong Fu (Chinese Academy of Sciences)
Tao Mei (Microsoft Research, Beijing)
Kuiyuan Yang (Microsoft Research, Beijing)
Hanqing Lu (Chinese Academy of Sciences)
Yong Rui (Microsoft Research, Beijing)

MobInsight: On Improving the Performance of Mobile Apps in Cellular Networks (Page 355)
Vijay Gabale (IBM Research, India)
Dilip Krishnaswamy (IBM Research, India)

Rethinking Security of Web-Based System Applications (Page 366)
Martin Georgiev (University of Texas at Austin)
Suman Jana (University of Texas at Austin)
Vitaly Shmatikov (University of Texas at Austin)

Cardinal Contests (Page 377)
Arpita Ghosh (Cornell University)
Patrick Hummel (Google Inc.)

Accessible On-Line Floor Plans (Page 388)
Cagatay Goncu (Monash University, Australia)
Anuradha Madugalla (Monash University & NICTA, Victoria, Australia)
Simone Marinai (Universita degli Studi di Firenze)
Kim Marriott (Monash University & NICTA, Victoria, Australia)

Network A/B Testing: From Sampling to Estimation (Page 399)
Huan Gui (University of Illinois at Urbana-Champaign)
Ya Xu (LinkedIn Corporation, Mountain View, CA)
Anmol Bhasin (LinkedIn Corporation, Mountain View, CA)
Jiawei Han (University of Illinois at Urbana-Champaign)

User Session Identification Based on Strong Regularities in Inter-Activity Time (Page 410)
Aaron Halfaker (Wikimedia Foundation, San Francisco)
Oliver Keyes (Wikimedia Foundation, San Francisco)
Daniel Kluver (University of Minnesota)
Jacob Thebault-Spieker (University of Minnesota)
Tien Nguyen (University of Minnesota)
Kenneth Shores (University of Minnesota)
Anuradha Uduwage (University of Minnesota)
Morten Warncke-Wang (University of Minnesota)

Incentivizing High Quality Crowdwork (Page 419)
Chien-Ju Ho (University of California, Los Angeles)
Aleksandrs Slivkins (Microsoft Research)
Siddharth Suri (Microsoft Research)
Jennifer Wortman Vaughan (Microsoft Research)

Skolemising Blank Nodes while Preserving Isomorphism (Page 430)
Aidan Hogan (University of Chile)

Scalable Methods for Adaptively Seeding a Social Network (Page 441)
Thibaut Horel (Harvard University)
Yaron Singer (Harvard University)

User Review Sites as a Resource for Large-Scale Sociolinguistic Studies (Page 452)
Dirk Hovy (University of Copenhagen)
Anders Johannsen (University of Copenhagen)
Anders Søgaard (University of Copenhagen)

When Does Improved Targeting Increase Revenue? (Page 462)
Patrick Hummel (Google Inc.)
R. Preston McAfee (Microsoft Corp.)

Social Status and Badge Design (Page 473)
Nicole Immorlica (Microsoft Research)
Greg Stoddard (Northwestern University)
Vasilis Syrgkanis (Microsoft Research)

Mapping Temporal Horizons: Analysis of Collective Future and Past Related Attention in Twitter (Page 484)
Adam Jatowt (Kyoto University)
Émilien Antoine (Kyoto Sangyo University)
Yukiko Kawai (Kyoto Sangyo University)
Toyokazu Akiyama (Kyoto Sangyo University)

Path Sampling: A Fast and Provable Method for Estimating 4-Vertex Subgraph Counts (Page 495)
Madhav Jha (Zenefits, San Francisco)
C. Seshadhri (University of California, Santa Cruz)
Ali Pinar (Sandia National Laboratories)

Automatic Online Evaluation of Intelligent Assistants (Page 506)
Jiepu Jiang (University of Massachusetts, Amherst)
Ahmed Hassan Awadallah (Microsoft, Redmond, WA)
Rosie Jones (Microsoft, Redmond, WA)
Umut Ozertem (Microsoft, Redmond, WA)
Imed Zitouni (Microsoft, Redmond, WA)
Ranjitha Gurunath Kulkarni (Microsoft, Redmond, WA)
Omar Zia Khan (Microsoft, Redmond, WA)

Incorporating Social Context and Domain Knowledge for Entity Recognition (Page 517)
Jie Tang (Tsinghua University & Tsinghua National Laboratory)
Zhanpeng Fang (Tsinghua University)
Jimeng Sun (Georgia Institute of Technology)

Querying Web-Scale Information Networks Through Bounding Matching Scores (Page 527)
Jiahui Jin (Southeast University, China & University of Massachusetts, Amherst)
Samamon Khemmarat (University of Massachusetts, Amherst)
Lixin Gao (University of Massachusetts, Amherst)
Junzhou Luo (Southeast University, China)

LN-Annote: An Alternative Approach to Information Extraction from Emails Using Locally-Customized Named-Entity Recognition (Page 538)
YoungHoon Jung (Columbia University)
Karl Stratos (Columbia University)
Luca P. Carloni (Columbia University)

Describing and Understanding Neighborhood Characteristics through Online Social Media (Page 549)
Mohamed Kafsi (École Polytechnique Fédérale de Lausanne)
Henriette Cramer (Yahoo Labs, Sunnyvale, CA)
Bart Thomee (Yahoo Labs, Sunnyvale, CA)
David A. Shamma (Yahoo Labs, Sunnyvale, CA)

Active Learning for Multi-relational Data Construction (Page 560)
Hiroshi Kajino (The University of Tokyo)
Akihiro Kishimoto (IBM Research - Ireland)
Adi Botea (IBM Research - Ireland)
Elizabeth Daly (IBM Research - Ireland)
Spyros Kotoulas (IBM Research - Ireland)

The Social World of Content Abusers in Community Question Answering (Page 570)
Imrul Kayes (University of South Florida)
Nicolas Kourtellis (Yahoo Labs, Barcelona)
Daniele Quercia (Yahoo Labs, Barcelona)
Adriana Iamnitchi (University of South Florida)
Francesco Bonchi (Yahoo Labs, Barcelona)

The Lifecycles of Apps in a Social Ecosystem (Page 581)
Isabel Kloumann (Cornell University)
Lada Adamic (Facebook Inc.)
Jon Kleinberg (Cornell University)
Shaomei Wu (Facebook Inc.)

Getting More for Less: Optimized Crowdsourcing with Dynamic Tasks and Goals (Page 592)
Ari Kobren (Google & UMass Amherst)
Chun How Tan (Google)
Panagiotis Ipeirotis (Google & NYU)
Evgeniy Gabrilovich (Google)

Evolution of Conversations in the Age of Email Overload (Page 603)
Farshad Kooti (University of Southern California)
Luca Maria Aiello (Yahoo Labs, Barcelona)
Mihajlo Grbovic (Yahoo Labs, Sunnyvale, CA)
Kristina Lerman (University of Southern California)
Amin Mantrach (Yahoo Labs, Barcelona)

Events and Controversies: Influences of a Shocking News Event on Information Seeking (Page 614)
Danai Koutra (Carnegie Mellon University)
Paul N. Bennett (Microsoft Research)
Eric Horvitz (Microsoft Research)

Statistically Significant Detection of Linguistic Change (Page 625)
Vivek Kulkarni (Stony Brook University)
Rami Al-Rfou (Stony Brook University)
Bryan Perozzi (Stony Brook University)
Steven Skiena (Stony Brook University)

Replacing the Irreplaceable: Fast Algorithms for Team Member Recommendation (Page 636)
Liangyue Li (Arizona State University)
Hanghang Tong (Arizona State University)
Nan Cao (IBM Research)
Kate Ehrlich (IBM Research)
Yu-Ru Lin (University of Pittsburgh)
Norbou Buchler (US Army Research Laboratory)

Robust Group Linkage (Page 647)
Pei Li (University of Zurich)
Xin Luna Dong (Google Inc.)
Songtao Guo (LinkedIn)
Andrea Maurino (University of Milan-Bicocca)
Divesh Srivastava (AT&T Labs-Research)

Uncovering the Small Community Structure in Large Networks: A Local Spectral Approach (Page 658)
Yixuan Li (Cornell Unveristy)
Kun He (Huazhong University of Science and Technology)
David Bindel (Cornell University)
John E. Hopcroft (Cornell University)

Scalable Parallel EM Algorithms for Latent Dirichlet Allocation in Multi-Core Systems (Page 669)
Xiaosheng Liu (Soochow University)
Jia Zeng (Soochow University & Huawei Noah's Ark Lab, Hong Kong)
Xi Yang (Soochow University)
Jianfeng Yan (Soochow University)
Qiang Yang (Huawei Noah's Ark Lab & Hong Kong University of Science and Technology)

Grading the Graders: Motivating Peer Graders in a MOOC (Page 680)
Yanxin Lu (Rice University)
Joe Warren (Rice University)
Christopher Jermaine (Rice University)
Swarat Chaudhuri (Rice University)
Scott Rixner (Rice University)

Measurement and Analysis of Mobile Web Cache Performance (Page 691)
Yun Ma (Peking University)
Xuanzhe Liu (Peking University)
Shuhui Zhang (Peking University)
Ruirui Xiang (Peking University)
Yunxin Liu (Microsoft Research, China)
Tao Xie (University of Illinois at Urbana-Champaign)

SCULPT: A Schema Language for Tabular Data on the Web (Page 702)
Wim Martens (Universität Bayreuth)
Frank Neven (Hasselt University and transnational University of Limburg)
Stijn Vansummeren (Université Libre de Bruxelles)

The Web as a Jungle: Non-Linear Dynamical Systems for Co-Evolving Online Activities (Page 721)
Yasuko Matsubara (Kumamoto University)
Yasushi Sakurai (Kumamoto University)
Christos Faloutsos (Carnegie Mellon University)

Spanning Edge Centrality: Large-Scale Computation and Applications (Page 732)
Charalampos Mavroforakis (Boston University)
Richard Garcia-Lebron (University of Texas)
Ioannis Koutis (University of Puerto Rico)
Evimaria Terzi (Boston University)

No Escape from Reality: Security and Privacy of Augmented Reality Browsers (Page 743)
Richard McPherson (University of Texas at Austin)
Suman Jana (University of Texas at Austin)
Vitaly Shmatikov (University of Texas at Austin)

Discovering Meta-Paths in Large Heterogeneous Information Networks (Page 754)
Changping Meng (Purdue University)
Reynold Cheng (University of Hong Kong)
Silviu Maniu (Noah's Ark Lab, Hong Kong)
Pierre Senellart (Telecom ParisTech; CNRS LTCI)
Wangda Zhang (University of Hong Kong)

From "Selena Gomez" to "Marlon Brando": Understanding Explorative Entity Search (Page 765)
Iris Miliaraki (Yahoo Labs)
Roi Blanco (Yahoo Labs)
Mounia Lalmas (Yahoo Labs)

Children Seen But Not Heard: When Parents Compromise Children's Online Privacy (Page 776)
Tehila Minkus (New York University)
Kelvin Liu (New York University, Shanghai)
Keith W. Ross (New York University & NYU, Shanghai)

TrueView: Harnessing the Power of Multiple Review Sites (Page 787)
Amanda J. Minnich (University of New Mexico)
Nikan Chavoshi (University of New Mexico)
Abdullah Mueen (University of New Mexico)
Shuang Luan (University of New Mexico)
Michalis Faloutsos (University of New Mexico)

QUOTUS: The Structure of Political Media Coverage as Revealed By Quoting Patterns (Page 798)
Vlad Niculae (Cornell University)
Caroline Suen (Stanford University)
Justine Zhang (Stanford University)
Cristian Danescu-Niculescu-Mizil (Cornell University)
Jure Leskovec (Stanford University)

Energy and Performance of Smartphone Radio Bundling in Outdoor Environments (Page 809)
Ana Nika (University of California, Santa Barbara)
Yibo Zhu (University of California, Santa Barbara)
Ning Ding (Purdue University)
Abhilash Jindal (Purdue University)
Y. Charlie Hu (Purdue University)
Xia Zhou (Dartmouth College)
Ben Y. Zhao (University of California, Santa Barbara)
Haitao Zheng (University of California, Santa Barbara)

PriVaricator: Deceiving Fingerprinters with Little White Lies (Page 820)
Nick Nikiforakis (Stony Brook University)
Wouter Joosen (KU Leuven)
Benjamin Livshits (Microsoft Research)

Diagnoses, Decisions, and Outcomes: Web Search as Decision Support for Cancer (Page 831)
Michael J. Paul (Johns Hopkins University)
Ryen W. White (Microsoft Research)
Eric Horvitz (Microsoft Research)

PocketTrend: Timely Identification and Delivery of Trending Search Content to Mobile Users (Page 842)
Gennady Pekhimenko (Carnegie Mellon University)
Dimitrios Lymberopoulos (Microsoft Research)
Oriana Riva (Microsoft Research)
Karin Strauss (Microsoft Research)
Doug Burger (Microsoft Research)

Overcoming Relational Learning Biases to Accurately Predict Preferences in Large Scale Networks (Page 853)
Joseph J. Pfeiffer III (Purdue University)
Jennifer Neville (Purdue University)
Paul N. Bennett (Microsoft Research)

Deriving an Emergent Relational Schema from RDF Data (Page 864)
Minh-Duc Pham (Vrije Universiteit Amsterdam)
Linnea Passing (Technische Universität München)
Orri Erling (OpenLink Software)
Peter Boncz (CWI, The Netherlands)

The Digital Life of Walkable Streets (Page 875)
Daniele Quercia (University of Cambridge)
Luca Maria Aiello (Yahoo Labs, Barcelona)
Rossano Schifanella (University of Turin)
Adam Davies (Walkonomics)

Beyond Models: Forecasting Complex Network Processes Directly From Data (Page 885)
Bruno Ribeiro (Carnegie Mellon University)
Minh X. Hoang (University of California, Santa Barbara)
Ambuj K. Singh (University of California, Santa Barbara)

Weakly Supervised Extraction of Computer Security Events from Twitter (Page 896)
Alan Ritter (The Ohio State University)
Evan Wright (Carnegie Mellon University)
William Casey (Carnegie Mellon University)
Tom Mitchell (Carnegie Mellon University)

Groupsourcing: Team Competition Designs for Crowdsourcing (Page 906)
Markus Rokicki (L3S Research Center)
Sergej Zerr (L3S Research Center)
Stefan Siersdorfer (L3S Research Center)

Authentication Melee: A Usability Analysis of Seven Web Authentication Systems (Page 916)
Scott Ruoti (Brigham Young University)
Brent Roberts (Brigham Young University)
Kent Seamons (Brigham Young University)

Finding the Hierarchy of Dense Subgraphs Using Nucleus Decompositions (Page 927)
Ahmet Erdem Sarıyüce (The Ohio State University)
C. Seshadhri (University of California, Santa Cruz)
Ali Pınar (Sandia National Labs, Livermore, CA)
Ümit V. Çatalyürek (The Ohio State University)

Bringing CUPID Indoor Positioning System to Practice (Page 938)
Souvik Sen (HP Labs)
Dongho Kim (HP Labs)
Stephane Laroche (HP Networking)
Kyu-Han Kim (HP Labs)
Jeongkeun Lee (HP Labs)

Early Detection of Spam Mobile Apps (Page 949)
Suranga Seneviratne (NICTA & School of EET, UNSW)
Aruna Seneviratne (NICTA & School of EET, UNSW)
Mohamed Ali Kaafar (NICTA)
Anirban Mahanti (NICTA)
Prasant Mohapatra (University of California, Davis)

N-gram IDF: A Global Term Weighting Scheme Based on Information Distance (Page 960)
Masumi Shirakawa (Osaka University)
Takahiro Hara (Osaka University)
Shojiro Nishio (Osaka University)

Query Suggestion and Data Fusion in Contextual Disambiguation (Page 971)
Milad Shokouhi (Microsoft)
Marc Sloan (University College London)
Paul N. Bennett (Microsoft)
Kevyn Collins-Thompson (University of Michigan)
Siranush Sarkizova (Harvard University)

Asymmetric Minwise Hashing for Indexing Binary Inner Products and Set Containment (Page 981)
Anshumali Shrivastava (Cornell University)
Ping Li (Rutgers University)

Language Understanding in the Wild: Combining Crowdsourcing and Machine Learning (Page 992)
Edwin Simpson (University of Oxford)
Matteo Venanzi (University of Southampton)
Steven Reece (University of Oxford)
Pushmeet Kohli (Microsoft Research, Cambridge)
John Guiver (Microsoft Research, Cambridge)
Stephen J. Roberts (University of Oxford)
Nicholas R. Jennings (University of Southampton)

HypTrails: A Bayesian Approach for Comparing Hypotheses About Human Trails on the Web (Page 1003)
Philipp Singer (GESIS & Graz University of Technology)
Denis Helic (Graz University of Technology)
Andreas Hotho (University of Würzburg)
Markus Strohmaier (GESIS & University of Koblenz-Landau)

Exploiting Collective Hidden Structures in Webpage Titles for Open Domain Entity Extraction (Page 1014)
Wei Song (Capital Normal University, Beijing)
Shiqi Zhao (Baidu Inc., Beijing)
Chao Zhang (Baidu Inc., Beijing)
Hua Wu (Baidu Inc., Beijing)
Haifeng Wang (Baidu Inc., Beijing)
Lizhen Liu (Capital Normal University, Beijing)
Hanshi Wang (Capital Normal University, Beijing)

Rocker - a Refinement Operator for Key Discovery (Page 1025)
Tommaso Soru (University of Leipzig)
Edgard Marx (University of Leipzig)
Axel-Cyrille Ngonga Ngomo (University of Leipzig)

Random Walk TripleRush: Asynchronous Graph Querying and Sampling (Page 1034)
Philip Stutz (University of Zurich)
Bibek Paudel (University of Zurich)
Mihaela Verman (University of Zurich)
Abraham Bernstein (University of Zurich)

Open Domain Question Answering Via Semantic Enrichment (Page 1045)
Huan Sun (University of California, Santa Barbara)
Hao Ma (Microsoft Research)
Wen-tau Yih (Microsoft Research)
Chen-Tse Tsai (University of Illinois at Urbana-Champaign)
Jingjing Liu (Microsoft Research)
Ming-Wei Chang (Microsoft Research)

All Who Wander: On the Prevalence and Characteristics of Multi-community Engagement (Page 1056)
Chenhao Tan (Cornell University)
Lillian Lee (Cornell University)

LINE: Large-Scale Information Network Embedding (Page 1067)
Jian Tang (Microsoft Research Asia)
Meng Qu (Peking University)
Mingzhe Wang (Peking University)
Ming Zhang (Peking University)
Jun Yan (Microsoft Research Asia)
Qiaozhu Mei (University of Michigan)

Leveraging Pattern Semantics for Extracting Entities in Enterprises (Page 1078)
Fangbo Tao (University of Illinois at Urbana-Champaign)
Bo Zhao (LinkedIn)
Ariel Fuxman (Microsoft)
Yang Li (UC Santa Barbara)
Jiawei Han (University of Illinois at Urbana-Champaign)

Density-Friendly Graph Decomposition (Page 1089)
Nikolaj Tatti (Aalto University)
Aristides Gionis (Aalto University)

Crowd Fraud Detection in Internet Advertising (Page 1100)
Tian Tian (Tsinghua University)
Jun Zhu (Tsinghua University)
Fen Xia (Baidu, Inc., Beijing)
Xin Zhuang (Baidu, Inc., Beijing)
Tong Zhang (Baidu, Inc., Beijing)

Provably Fast Inference of Latent Features from Networks: With Applications to Learning Social Circles and Multilabel Classification (Page 1111)
Charalampos E. Tsourakakis (Harvard University)

The K-Clique Densest Subgraph Problem (Page 1122)
Charalampos E. Tsourakakis (Harvard University)

GERBIL - General Entity Annotator Benchmarking Framework (Page 1133)
Ricardo Usbeck (Leipzig University)
Michael Röder (Leipzig University)
Axel-Cyrille Ngonga Ngomo (Leipzig University)
Ciro Baron (Leipzig University)
Andreas Both (Unister GmbH)
Martin Brümmer (Leipzig University)
Diego Ceccarelli (ISTI-CNR, Italy)
Marco Cornolti (University of Pisa)
Didier Cherix (Unister GmbH)
Bernd Eickmann (Unister GmbH)
Paolo Ferragina (University of Pisa)
Christiane Lemke (Unister GmbH)
Andrea Moro (Sapienza University of Rome)
Roberto Navigli (Sapienza University of Rome)
Francesco Piccinno (University of Pisa)
Giuseppe Rizzo (EURECOM)
Harald Sack (HPI Potsdam)
René Speck (Leipzig University)
Raphaël Troncy (Eurecom)
Jörg Waitelonis (HPI Potsdam)
Lars Wesemann (Unister GmbH)

An Optimization Framework for Weighting Implicit Relevance Labels for Personalized Web Search (Page 1144)
Yury Ustinovskiy (Yandex)
Gleb Gusev (Yandex)
Pavel Serdyukov (Yandex)

A First Look at Tribal Web Traffic (Page 1155)
Morgan Vigil (University of California Santa Barbara)
Matthew Rantanen (Southern California Tribal Chairmen's Association)
Elizabeth Belding (University of California Santa Barbara)

A Weighted Correlation Index for Rankings with Ties (Page 1166)
Sebastiano Vigna (Università degli Studi di Milano)

Gathering Additional Feedback on Search Results By Multi-Armed Bandits with Respect to Production Ranking (Page 1177)
Aleksandr Vorobev (Yandex LLC, Moscow)
Damien Lefortier (Yandex LLC, Moscow & University of Amsterdam)
Gleb Gusev (Yandex LLC, Moscow)
Pavel Serdyukov (Yandex LLC, Moscow)

The E-Commerce Market for "Lemons": Identification and Analysis of Websites Selling Counterfeit Goods (Page 1188)
John Wadleigh (Southern Methodist University)
Jake Drew (Southern Methodist University)
Tyler Moore (Southern Methodist University)

Concept Expansion Using Web Tables (Page 1198)
Chi Wang (Microsoft Research)
Kaushik Chakrabarti (Microsoft Research)
Yeye He (Microsoft Research)
Kris Ganjam (Microsoft Research)
Zhimin Chen (Microsoft Research)
Philip A. Bernstein (Microsoft Research)

User Latent Preference Model for Better Downside Management in Recommender Systems (Page 1209)
Jian Wang (LinkedIn Corp)
David Hardtke (LinkedIn Corp)

The Role of Data Cap in Optimal Two-Part Network Pricing (Page 1220)
Xin Wang (University of Science and Technology of China)
Richard T. B. Ma (National University of Singapore)
Yinlong Xu (University of Science and Technology of China)

Tweeting Cameras for Event Detection (Page 1231)
Yuhui Wang (National University of Singapore)
Mohan S. Kankanhalli (National University of Singapore)

Mining Missing Hyperlinks from Human Navigation Traces: A Case Study of Wikipedia (Page 1242)
Robert West (Stanford University)
Ashwin Paranjape (Stanford University)
Jure Leskovec (Stanford University)

Semantic Annotaion of Mobility Data Using Social Media (Page 1253)
Fei Wu (Pennsylvania State University)
Zhenhui Li (Pennsylvania State University)
Wang-Chien Lee (Pennsylvania State University)
Hongjian Wang (Pennsylvania State University)
Zhuojie Huang (Pennsylvania State University)

Automatic Web Content Extraction By Combination of Learning and Grouping (Page 1264)
Shanchan Wu (HP Labs, Palo Alto, CA)
Jerry Liu (HP Labs, Palo Alto, CA)
Jian Fan (HP Labs, Palo Alto, CA)

Executing Provenance-Enabled Queries over Web Data (Page 1275)
Marcin Wylot (University of Fribourg)
Philippe Cudré-Mauroux (University of Fribourg)
Paul Groth (Elsevier Labs)

Understanding Malvertising Through Ad-Injecting Browser Extensions (Page 1286)
Xinyu Xing (Georgia Institute of Technology)
Wei Meng (Georgia Institute of Technology)
Byoungyoung Lee (Georgia Institute of Technology)
Udi Weinsberg (Facebook Inc.)
Anmol Sheth (A9.com/Amazon)
Roberto Perdisci (University of Georgia)
Wenke Lee (Georgia Institute of Technology)

E-Commerce Reputation Manipulation: The Emergence of Reputation-Escalation-as-a-Service (Page 1296)
Haitao Xu (University of Delaware & College of William and Mary)
Daiping Liu (University of Delaware)
Haining Wang (University of Delaware)
Angelos Stavrou (George Mason University)

Effective Techniques for Message Reduction and Load Balancing in Distributed Graph Computation (Page 1307)
Da Yan (The Chinese University of Hong Kong)
James Cheng (The Chinese University of Hong Kong)
Yi Lu (The Chinese University of Hong Kong)
Wilfred Ng (The Hong Kong University of Science and Technology)

Tackling the Achilles Heel of Social Networks: Influence Propagation Based Language Model Smoothing (Page 1318)
Rui Yan (Baidu Inc.)
Ian E.H. Yen (University of Texas at Austin)
Cheng-Te Li (Academia Sinica, Taiwan)
Shiqi Zhao (Baidu Inc.)
Xiaohua Hu (Drexel University)

A Game Theoretic Model for the Formation of Navigable Small-World Networks (Page 1329)
Zhi Yang (Peking University)
Wei Chen (Microsoft Research, China)

A Scalable Asynchronous Distributed Algorithm for Topic Modeling (Page 1340)
Hsiang-Fu Yu (University of Texas at Austin)
Cho-Jui Hsieh (University of Texas at Austin)
Hyokun Yun (Amazon)
S.V.N. Vishwanathan (University of California, Santa Cruz)
Inderjit S. Dhillon (University of Texas at Austin)

Lightlda: Big Topic Models on Modest Computer Clusters (Page 1351)
Jinhui Yuan (Microsoft Research)
Fei Gao (Microsoft Research)
Qirong Ho (Institute for Infocomm Research, A*STAR)
Wei Dai (Carnegie Mellon University)
Jinliang Wei (Carnegie Mellon University)
Xun Zheng (Carnegie Mellon University)
Eric P. Xing (Carnegie Mellon University)
Tie-Yan Liu (Microsoft Research)
Wei-Ying Ma (Microsoft Research)

A Novelty-Seeking based Dining Recommender System (Page 1362)
Fuzheng Zhang (University of Science & Technology of China & Microsoft Research)
Kai Zheng (University of Queensland)
Nicholas Jing Yuan (Microsoft Research)
Xing Xie (Microsoft Research)
Enhong Chen (University of Science and Technology of China)
Xiaofang Zhou (University of Queensland)

Daily-Aware Personalized Recommendation based on Feature-Level Time Series Analysis (Page 1373)
Yongfeng Zhang (Tsinghua University & University of California)
Min Zhang (Tsinghua University)
Yi Zhang (University of California, Santa Cruz)
Guokun Lai (Tsinghua University)
Yiqun Liu (Tsinghua University)
Honghui Zhang (Tsinghua University)
Shaoping Ma (Tsinghua University)

Automatic Detection of Information Leakage Vulnerabilities in Browser Extensions (Page 1384)
Rui Zhao (University of Colorado, Colorado Springs)
Chuan Yue (University of Colorado, Colorado Springs)
Qing Yi (University of Colorado, Colorado Springs)

Enquiring Minds: Early Detection of Rumors in Social Media From Enquiry Posts (Page 1395)
Zhe Zhao (University of Michigan, Ann Arbor)
Paul Resnick (University of Michigan, Ann Arbor)
Qiaozhu Mei (University of Michigan, Ann Arbor)

Improving User Topic Interest Profiles By Behavior Factorization (Page 1406)
Zhe Zhao (University of Michigan, Ann Arbor)
Zhiyuan Cheng (Google Inc)
Lichan Hong (Google Inc)
Ed H. Chi (Google Inc)

Predicting Pinterest: Automating a Distributed Human Computation (Page 1417)
Changtao Zhong (King's College London)
Dmytro Karamshuk (King's College London)
Nishanth Sastry (King's College London)