The 23rd International World Wide Web Conference (WWW2014)

General Chair Chin-Wan Chung (KAIST)

General Vice Chairs Sung Joon Choi (MOTIE/KATS) Sang-goo Lee(Seoul National Univ.) Sue Moon (KAIST)

Research Track Co-Chairs Andrei Broder (Google) Kyuseok Shim (Seoul National Univ.) Torsten Suel (New York Univ.)

Demos Track Co-Chairs Jaewoo Kang (Korea Univ.) Yufei Tao (Chinese Univ. of Hong Kong)

Developers Track Co-Chairs Alejandro Jaimes (Yahoo Labs) Seokchan “Channy” Yun (Daum Communications Corp.)

Industry Track Co-Chairs Rakesh Agrawal (Microsoft Research) Chang Song (NAVER)

Panel Co-Chairs Arun Iyengar (IBM) Jong Kim (POSTECH)

Ph. D. Symposium Track Co-Chairs Jianyong Wang (Tsinghua Univ.) Hayato Yamana (Waseda Univ.)

Posters Track Co-Chairs Dongman Lee (KAIST) Wolfgang Nejdl (Univ. of Hanover)

Proceedings Co-Chairs Wonjae Lee (KAIST) Hae-Chang Rim (Korea Univ.) Daniel Schwabe (PUC)

Student Travel Grant Co-Chairs Meeyoung Cha (KAIST) Jihie Kim (KT) In Young Ko (KAIST)

Tutorials Co-Chairs Tie-Yan Liu (Microsoft Research Asia) Katsumi Tanaka (Kyoto Univ.)

W3C Track Co-Chairs Marie-Claire Forgue (W3C) Seung-Yun Lee (ETRI)

Web Science Track Co-Chairs Wendy Hall (Univ. of Southampton) Sung-Hyon Myaeng (KAIST)

Workshops Co-Chairs Kevin Chang (UIUC) Ricardo Baeza-Yates (Yahoo!)

Volunteers Co-Chairs Jun-Ki Min (Korea Univ. of Technology and Education) Sebastien Forget (TD Canada)

Local Organizing Committee Finance Chair Seok-Lyong Lee (Hankuk Univ. of Foreign Studies)

RegistrationChair Deok-Hwan Kim (Inha Univ.)

PublicityCo-Chairs Alice Oh (KAIST) Kyu-Chul Lee (Chungnam National Univ.)

SponsorshipCo-Chairs In-young Ko (KAIST) Hyoung-Joo Kim (Seoul National Univ.)

Exhibition Chair Hee-Yeol Choi (Samsung Electronics)

Local ArrangementCo-Chairs Sunbin Eom (MOTIE/KATS) Jun-Ki Min (Korea Univ. of Technology and Education) Kyong-Ho Lee (Yonsei Univ.)

MarketingCo-Chairs Zou Sam Ahn (MOTIE/KATS) Sunbin Eom (MOTIE/KATS) Junho Shim (Sookmyung Women’s Univ.)

Research Track Area Program Committee: Behavioral Analysis and Personalization Area Chairs

Pearl Pu (EPFL) Andrew Tomkins (Google)

PC Members

Bhargav Kanagal (Google) Gueorgi Kossinets (Google)

Georges Dupret (Yahoo!) Jaime Arguello (Univ. of North Carolina at Chapel Hill)

Jiawei Han (Univ. of Illinois at Urbana-Champaign) Mounia Lalmas (Yahoo!)

Omar Alonso Krishnaram Kenthapadi (Microsoft)

Gueorgi Kossinets (Google) Amr Ahmed (Google)

Jaime Arguello (Univ. of North Carolina at Chapel Hill) Chabane Djeraba (LIFL, Univ. of Sciences and Technologies of Lille)

Mounia Lalmas (Yahoo!) Diane Kelly (Univ. of North Carolina)

Krishnaram Kenthapadi (Microsoft) Alejandro Jaimes (Yahoo!)

Amr Ahmed (Google) Hanghang Tong

Bhargav Kanagal (Google) Hui Fang (Nanyang Technological Univ.)

Georges Dupret (Yahoo!) Filip Radlinski (Microsoft)

Jiawei Han (Univ. of Illinois at Urbana-Champaign) Nicholas Belkin (Rutgers Univ.)

Omar Alonso Milad Shokouhi (Microsoft)

Carlos Castillo (Qatar Computing Research Institute) Paolo Cremonesi (Politecnico di Milano)

Dmitry Lagun (Emory Univ.) Li Chen (Hong Kong Baptist Univ.)

Tie-Yan Liu (Microsoft) Dietmar Jannach (TU Dortmund)

Ran Wolff (Univ. of Haifa) Weike Pan (Shenzhen Univ.)

Kristen Lefevre (Google) Markus Strohmaier (Graz Univ. of Technology)

Peter Brusilovsky (Univ. of Pittsburgh) Mi Zhang (Fudan Univ.)

Robert Jäschke (L3S Research Center) Florent Garcin (EPFL)

Jian Wang (Univ. of California, Santa Cruz) Linas Baltrunas (Telefonica Research)

Pan Hui (Hong Kong Univ. of Science and Technology)

Research Track Area Program Committee: Content Analysis

Area Chairs Seung-won Hwang (POSTECH) Lillian Lee (Cornell Univ.)

PC Members

Eugene Agichtein (Emory Univ.) Gerard de Melo (ICSI)

Yuki Arase (Microsoft Research Asia) Don Metzler (Google)

Wolf-Tilo Balke (Technische Universitaet Braunschweig) RobertoNavigli (Sapienza Univ. of Rome/Univ. of Wolverhampton)

Shenghua Bao (IBM) Zaiqing Nie (Microsoft Research Asia)

Michael Bendersky (Google) Miles Osborne (Univ. of Edinburgh/Johns Hopkins)

Jordan Boyd-Graber (Univ. of Maryland) Myle Ott (Facebook)

Yunbo Cao (Microsoft Research Asia) Iadh Ounis (Univ. of Glasgow)

Claire Cardie (Cornell) Bo Pang (Google)

Ming-Wei Chang (Microsoft Research) Carolyn Penstein Rose (CMU)

Cristian Danescu-Niculescu-Mizil (MPI-SWS) Sasa Petrovic (Google)

Munmun De Choudhury (Microsoft Research) Chris Potts (Stanford)

Doug Downey (Northwestern) Karthik Raman (Cornell Univ.)

Jacob Eisenstein (Georgia Tech) Alan Ritter (CMU/Ohio State)

Sameh Elnikety (Microsoft Research) Shuming Shi (Microsoft Research Asia)

Hui Fang (Univ. of Delaware) Stefan Siersdorfer (L3S Research Center)

Evgeniy Gabrilovich (Google) Noah Smith (CMU)

Michael Gamon (Microsoft Research) Ian Soboroff (NIST)

Eric Gilbert (Georgia Tech) Young-In Song (NHN Corporation)

Marco Guerini (Trento RISE) Partha Talukdar (CMU)

Yuxiong He (Microsoft Research) Chenhao Tan (Cornell Univ.)

U Kang (KAIST) Haixun Wang (Microsoft Research Asia)

Oren Kurland (The Technion) Lu Wang (Cornell Univ.)

Sangkeun Lee (Korea Univ.) Furu Wei (Microsoft Research Asia)

Jimmy Lin (Univ. of Maryland) Yisong Yue (Disney Research and CalTech)

Bing Liu (Univ. of Illinois-Chicago) Torsten Zesch (TU-Darmstadt)

Mausam (Indian Institute of Technology, Delhi) Chengxiang Zhai (UIUC)

Elijah Mayfield (Lightside Labs) Yi Zhang (Univ. of California – Santa Cruz)

Qiaozhu Mei (Univ. of Michigan) Chenhao Tan (Cornell Univ.)

Research Track Area Program Committee: Crowd Phenomena

Area Chairs Panos Ipeirotis (New York Univ.) Stefano Leonardi (Sapienza Univ. of Rome)

PC Members

Yoram Bachrach (Microsoft Research, Cambridge) David Karger (MIT)

Jeff Bigham (Univ. of Rochester) Donald Kossmann (ETH Zurich)

Marco Brambilla (Politecnico di Milano) Patty Kostkova (CeRC, City University, London)

Carlos Castillo (Qatar Computing Research Institute) Andreas Krause (ETH Zurich) Ciro Cattuto (Institute for Scientific Interchange Foundation)

Aditya Parameswaran (Stanford University)

Ruggero Cavallo (Harvard) Yaron Singer (Harvard)

Kuan-Ta Chen (Academia Sinica) Siddharth Suri (Microsoft Research)

Alon Halevi (Google) Ingmar Weber (Qatar Computing Research Institute)

John Horton (NYU) Daniel Weld (University of Washington, CSE)

Shaili Jain (Microsoft) Narahari Yadati (Indian Institute of Science)

Adam Kalai (Microsoft Research) Haoqi Zhang (Northwestern University)

Research Track Area Program Committee: Internet Economics and Monetization

Area Chairs Arpita Ghosh (Cornell Univ.) Vanja Josifovski (Google)

PC Members

Liad Blumrosen (The Hebrew Univ.) Ron Lavi (The Technion — Israel Institute of Technology)

Anirban Dasgupta (Yahoo! Research) Jeffrey Mackie-Mason (Univ. of Michigan)

Nikhil Devanur (Microsoft Research) Preston McAfee (Google)

Gagan Goel (Google Research) Aranyak Mehta (Google)

Ashish Goel (Stanford Univ.) Vahab Mirrokni (Google Research)

Sreenivas Gollapudi (Microsoft Research) S Muthukrishnan (Rutgers Univ. and Microsoft Research)

Patrick Hummel (Google Inc.) Uri Nadav (Google)

Krishnamurthy Iyer (Cornell Univ.) Michael Ostrovsky (Stanford Univ.)

Kamal Jain (eBay Research) David Pennock (Microsoft Research)

Ramesh Johari (Stanford Univ.) Michael Schapira (Yale Univ.& U.C. Berkeley)

Radu Jurca (Google Inc. Switzerland) Eric Sodomka (Brown Univ.)

Sebastien Lahaie (Microsoft Research)

Research Track Area Program Committee: Security,Privacy, Trust, and Abuse

Area Chairs Nicolas Christin (Carnegie Mellon) Yongdae Kim (KAIST)

PC Members

Lucas Ballard (Google) Kirill Levchenko (UC San Diego)

Davide Balzarotti (Eurecom) Zhenkai Liang (National Univ. of Singapore)

Elie Bursztein (Google) Prateek Mittal (Princeton Univ.)

Yan Chen (Northwestern Univ.) Abedelaziz Mohaisen (Verisign Labs)

Emiliano De Cristofaro (PARC/UCL) Tyler Moore (Southern Methodist Univ.)

Serge Egelman (UC Berkeley and ICSI) Vern Paxson (UC Berkeley and ICSI)

Thorsten Holz (Ruhr-Universität Bochum) Stuart Schechter (Microsoft Research)

Markus Jakobsson (FatSkunk) Elaine Shi (Univ. of Maryland)

Rob Jansen (Naval Research Laboratory) Robin Sommer (ICSI and LBNL)

Aaron Johnson (Naval Research Laboratory) Sid Stamm (Mozilla)

Jaeyeon Jung (Microsoft Research) Dan Wallach (Rice Univ.)

Engin Kirda (Northeastern Univ.) Xiaofeng Wang (Indiana Univ.)

Christopher Kruegel (UC Santa Barbara) Christo Wilson (Northeastern Univ.)

Wenke Lee (Georgia Institute of Technology) Haifeng Yu (National Univ. of Singapore)

Research Track Area Program Committee: Semantic Web

Area Chairs Ramanthan Guha (Google) Daniel Schwabe (Pontifical Catholic Univ. of Rio de Janeiro)

PC Members

Kemafor Anyanwu (North Carolina State Univ.) Edgar Meij (Yahoo! Research)

Marcelo Arenas (PUC, Chile) Peter Mika (Yahoo! Research)

Sören Auer (Universität Leipzig) Dunja Mladenic (Josef Stefan Institute)

Abraham Bernstein (Univ. of Zurich) N. S. Narayanaswamy (IIT, Madras)

Marco Casanova (PUC) Peter Patel-Schneider (Nuance)

Key-Sun Choi (KAIST) Terry Payne (Univ. of Liverpool)

Oscar Corcho (Universidad Politécnica de Madrid) Marta Sabou (MODUL Univ. Viena)

Philippe Cudré-Mauroux (U. of Fribourg) Ansgar Scherp (Univ. of Mannheim)

Stefan Decker (DERI Galway) Amit Sheth (Kno.e.sis Center, Wright State Univ.)

Fabien Gandon (INRIA) Ramakrishnan Srikant (Google)

Aldo Cangemi (Universidad Politécnica de Madrid) Kavitha Srinivas (IBM Research)

Asunción Gómez-Pérez (Universidad Politécnica de Madrid) Steffen Staab (Univ. of Koblenz-Landau)

Vineet Gupta (Google) Haofen Wang (Shanghai Jiao Tong Univ.)

Alon Halevy (Google) Zhichun Wang (Tsinghua Univ.)

Martin Hepp (Bundeswehr Univ. Munich, Germany) Chris Welty (IBM Research)

Lalana Kagal (MIT) Josiane Xavier Parreira (DERI – National Univ. of Ireland)

Jaap Kamps (Univ. of Amsterdam)

Research Track Area Program Committee: Social Networks and Graph Analysis

Area Chairs Aristides Gionis (Aalto Univ.) Alessandro Panconesi (Sapienza Univ. of Rome)

PC Members Lada Adamic (Univ. of Michigan) Winter Mason (Stevens Institute of Technology)

Aris Anagnostopoulos (Sapienza Univ. of Rome) Michael Mathioudakis (Helsinki Institute for Info.Technology)

Luca Becchetti (Sapienza Univ. of Rome) Alan Mislove (Northeastern Univ.)

Andras Benczur (Hungarian Academy of Sciences) Alice Oh (KAIST)

Paolo Boldi (Universita degli Studi di Milano) Giuseppe Ottaviano (Univ. of Pisa)

Francesco Bonchi (Yahoo! Research) Themis Palpanas (Univ. of Trento)

Wei Chen (Microsoft Research Asia) Rina Panigrahy (Microsoft Research)

Aaron Clauset (Univ. of Colorado Boulder) Paolo Parigi (Stanford Univ.)

Gao Cong (Nanyang Technological Univ.) Konstantinos Pelechrinis (Univ. of Pittsburgh)

Yafei Dai (Peking Univ.) Marco Pellegrini (IIT-CNR)

Nilesh Dalvi (Facebook) Ali Pinar (Sandia National Labs)

Gianmarco De Francisci Morales (Yahoo! Research) Evaggelia Pitoura (Univ. of Ioannina)

Gianluca Demartini (Univ. of Fribourg) B. Aditya Prakash (Virginia Tech)

Christos Faloutsos (CMU) Giancarlo Ruffo (Università di Torino)

Pierre Fraigniaud (Université Paris Diderot) Alessandra Sala (Alcatel-Lucent Bell Labs)

Ada Wai-Chee Fu (Chinese Univ. of Hong Kong) Massimo Santini (Universita degli Studi di Milano)

Norbert Fuhr (Univ. of Duisburg-Essen) Atish Das Sarma (eBay Research Labs)

Sabrina Gaito (Universita degli Studi di Milano) Lars Schmidt-Thieme (Univ. of Hildesheim)

Sharad Goel (Microsoft Research) Mauro Sozio (Telecom ParisTech)

Manuel Gomez Rodriguez (MPI) Julinda Stefa (Sapienza Univ. of Rome)

Francesco Gullo (Yahoo! Research) Aixin Sun (Nanyang Technological Univ.)

Krishna Gummadi (MPI) Nikolaj Tatti (Aalto Univ.)

Jake Hofman (Microsoft Research) Evimaria Terzi (Boston Univ.)

Stratis Ioannidis (Technicolor) Hanghang Tong (City College, CUNY)

Panos Kalnis (King Abdullah Univ. of Science &Tech) Panayiotis Tsaparas (Univ. of Ioannina)

Yoshinobu Kawahara (Osaka Univ.) Charalampos Tsourakakis (Aalto Science Institute)

Emre Kiciman (Microsoft Research) Johan Ugander (Cornell Univ.)

Masahiro Kimura (Ryukoku Univ.) Antti Ukkonen (Helsinki Institute for Information Technology)

Georgia Koutrika (HP Labs) Eli Upfal (Brown Univ.)

Ponnurangam Kumaraguru (IIIT-Delhi) Sergei Vassilvitskii (Google)

Haewoon Kwak (Telefonica Research) Jianyong Wang (Tsinghua Univ.)

Silvio Lattanzi (Google) Christo Wilson (Northeastern Univ.)

Kristina Lerman (Univ. of Southern California) Raymond Chi-Wing Wong (Hong Kong Univ. of Science &Tech.)

Hang Li (Huawei Noah’s Ark Lab) Lexing Xie (Australian National Univ.)

David Liben-Nowell (Carleton College) Xifeng Yan (Univ. of California at Santa Barbara)

Edo Liberty (Yahoo Labs) Georgios Zervas (Boston Univ.)

Nelly Litvak (Univ. of Twente) Ben Zhao (UC Santa Barbara)

Claudio Lucchese (ISTI-CNR) Heather Zheng (UC Santa Barbara)

Michael Mahoney (Stanford Univ.) Xingquan Zhu (Univ. of Technology, Sydney)

Madhav Marathe (Virginia Tech)

Research Track Area Program Committee: Software Infrastructure, Performance, Scalability, and Availability

Area Chairs

Zhen Xiao (Peking Univ.) Malgorzata Steinder (IBM Research)

PC Members

Virgilio Almeida (UFMG) Rick Schlichting (AT&T Labs Research)

Ken Birman (Cornell Univ.) Shirin Sohrabi (IBM T. J. Watson Research Center)

Haibo Chen (Shanghai Jiao Tong Univ.) Weijia Song (Computer Center, Peking Univ, Beijing)

Byung-Gon Chun (Microsoft) Gosia Steinder (IBM T. J. Watson Research Center)

Michele Colajanni (Univ. of Modena) Stefan Tai (KIT)

Minyi Guo (Shanghai Jiao Tong Univ.) Bhuvan Urgaonkar (Pennsylvania State Univ.)

Jiming Liu (Hong Kong Baptist Univ.) Robbert Van Renesse (Cornell Univ.)

John C.S. Lui (The Chinese Univ. of Hong Kong) C.L. Wang (The Univ. of Hong Kong)

Greg Malewicz (Facebook) Zhen Xiao (Peking Univ.)

Beng Chin Ooi (National Univ. of Singapore)

Research Track Area Program Committee: User Interfaces, Human Factors, and MobileDevices

Area Chairs

Cecilia Mascolo (Univ. of Cambridge) Xing Xie (Microsoft Research Asia)

PC Members

Susanne Boll (Univ. of Oldenburg) Ilias Leontiadis (Telefonica Research)

Andrew Campbell (Dartmouth College) Jiebo Luo (Univ. of Rochester Rochester)

Lei Chen (Hong Kong Univ. of Science and Technology) Qin Lv (Univ. of Colorado at Boulder)

Ed H. Chi (Google) Natasa Milic-Frayling (Microsoft Research)

Hao-Hua Chu (National Taiwan Univ.) Mirco Musolesi (Univ. of Birmingham)

Karen Church (Yahoo! Labs) Nuria Oliver (Telefonica Research)

Henriette Cramer (Yahoo! Labs) Eamonn O’Neill (Univ. of Bath)

Daniel Gatica-Perez (EPFL) Daniele Quercia (Yahoo! Labs)

Takahiro Hara (Osaka Univ.) Salvatore Scellato (Google)

Otmar Hilliges (ETH Zurich) Junehwa Song (KAIST)

Vaiva Kalnikaite (Univ. College London) Feng Tian (Institute of Software, Chinese Academy of Sciences)

Marc Langheinrich (Univ. of Lugano) Nicholas Yuan (Microsoft Research Asia)

Neal Lathia (Univ. of Cambridge) Vincent W. Zheng (Advanced Digital Sciences Center)

Wang-Chien Lee (The Pennsylvania State Univ.)

Research Track Area Program Committee: Web Mining

Area Chairs Rajeev Rastogi (Amazon) Yutaka Matsuo (Univ. of Tokyo)

PC Members

Azin Ashkan (Univ. of Waterloo) Arjun Mukherjee (Univ. of Illinois, Chicago)

Smriti Bhagat (Technicolor) Zaiqing Nie (Microsoft Research Asia)

Mikhail Bilenko (Microsoft Research) Alexandros Ntoulas (Microsoft Research)

Michael Cafarella (Univ. of Michigan) Umut Ozertem (Microsoft Research)

Rui Cai (Microsoft Research Asia) Rina Panigrahy (Microsoft Research)

Vineet Chaoji (Amazon) Nish Parikh (Ebay Research Labs)

Sanjay Chawla (Univ. of Sydney) Srinivasan Parthasarthy (Ohio State Univ.)

Yun Chi (NEC Labs) Jian Pei (Simon Fraser Univ.)

Bee-Chung Chen (LinkedIn) Simone Ponzetto (Universitat Mannheim)

Brian Davison (Lehigh Univ.) Kira Radinsky (Technion)

Eduard Dragut (Temple Univ.) Naren Ramakrishnan (Virginia Tech)

Minos Garofalakis (Technical Univ. of Crete, Chania) B. Ravindran (IIT Madras)

Natalie Glance (Google) Mark Sandler (Google)

Qi He (LinkedIn) Sunita Sarawagi (IIT Bombay)

Ralf Herbrich (Amazon) Venu Satuluri (Twitter)

Daxin Jiang (Microsoft Research Asia) Dou Shen (Microsoft Adcenter Labs)

Jaewoo Kang (Korea Univ.) Myra Spiliopoulou (U. Magdeburg)

Anitha Kannan (Microsoft Research) Jaideep Srivastava (Univ. of Minnesota)

Evangelos Kanoulas (Google) Neel Sundaresan (Ebay Research Labs)

Sang-Wook Kim (Hanyang Univ.) Lei Tang (Walmart Labs)

Yehuda Koren (Google) Masashi Toyoda (Univ. of Tokyo)

Christian Arnd Konig (Microsoft Research) Michalis Vazirgiannis (AUEB)

Nick Koudas (Univ. of Toronto) S. V. N. Vishwanathan (Purdue Univ.)

Mayank Lahiri (Univ. of Illinois, Chicago) Jianyong Wang (Tsinghua Univ.)

Wai Lam (Chinese Univ. of Hong Kong) Ke Wang (Simon Fraser Univ.)

Hady Lauw (Singapore Management Univ.) Michael Wurst (TU Dortmund)

Chengkai Li (Univ. of Texas, Arlington) Hui Xiong (Rutgers Univ.)

Xiaoli Li (Institute for Infocomm Research) Shuang-Hong Yang (Twitter)

Ee-Peng Lim (Singapore Management Univ.) Emine Yilmaz (Microsoft Research)

Huan Liu (Arizona State Univ.) Jeffery Xu Yu (Chinese Univ. of Hong Kong)

Yue Lu (Univ. of Illinois, Urbana Champaign) Philip Yu (Univ. of Illinois, Chicago)

Michael Lyu (Chinese Univ. of Hong Kong) Mohammed Zaki (RPI)

Hao Ma (Microsoft Research) Lei Zhang (Univ. of Illinois, Chicago)

Srujana Merugu (Amazon) Zhe Zhao (Univ. of Michigan)

Vahab Mirrokni (Google) Feida Zhu (Singapore Management Univ.)

Bamshad Mobasher (DePaul Univ.)

Research Track Area Program Committee: Web Search Systems and Applications

Area Chairs Yoelle Maarek (Yahoo Labs) Junghoo Cho (UCLA)

PC Members James Allan (UMass Amherst) Amruta Joshi (Google)

Omar Alonso (Microsoft) Ronny Lempel (Yahoo Labs)

Jaime Arguello (Univ. of North Carolina at Chapel Hill) Edo Liberty (Yahoo Labs)

Ziv Bar-Yossef (Google) Ee-Peng Lim (Singapore Management Univ.)

Behshad Behzadi (Google) Wei-Ying Ma (Microsoft Research Asia)

Edward Bortnikov (Yahoo Labs) Mark Manasse (Microsoft Research)

Rui Cai (Microsoft Research Asia) Vanessa Murdock (Microsoft)

B. Barla Cambazoglu (Yahoo Labs) Jian Pei (Simon Fraser Univ.)

David Carmel (Yahoo Labs) Sriram Raghavan (IBM Research – India)

Soumen Chakrabarti (IIT Bombay) Uri Schonfeld (UCLA)

Kevin Chang (Univ. of Illinois at Urbana-Champaign) Fabrizio Silvestri (ISTI – CNR)

Yi Chang (Yahoo Labs) D Sivakumar (Google)

Maarten de Rijke (Univ. of Amsterdam) Neel Sundaresan (eBay Research Labs)

Arjen de Vries (CWI) Idan Szpektor (Yahoo Labs)

Fernando Diaz (Microsoft Research) Stratis Viglas (Univ. of Edinburgh)

Marcus Fontoura (Google) Sebastiano Vigna (Universita degli Studi di Milano)

Antonio Gulli (Microsoft) Michael Welch (Yahoo!)

Maxim Gurevich (Google) Ji-Rong Wen (Microsoft Research Asia)

Djoerd Hiemstra (Q-able and Univ. of Twente) Tao Yang (Ask.com and UCSB)

Chu-Cheng Hsieh (eBay Research Labs) Elad Yom-Tov (Microsoft Research)

External Reviewers List Ibrahim Abdelaziz Ehab Abdelhamid Eytan Adar Abhijin Adiga Manoj Agarwal Elif Aktolga Bernhard Amann Pramod Anantharam Mauro Andreolini Samur Araujo Cigdem Aslay Magda Balazinska Nicola Barbieri Cosmin Basca Aditya Bashkara Vincent Bindschadler Sebastian Blohm Alessandro Bozzon Adrian M.P. Brasoveanu George Brova Carlos Buil Aranda Keke Cai Davide Canali Yinzhi Cao Rose Catherine Prithwish Chakraborty Hung-Hsuan Chen Jia Chen Shirley Zhe Chen Shouyuan Chen Xixian Chen Yuan-Hsin Chen Yunfei Chen Flavio Chierichetti Donghee Choi Jaehoon Choi Maria Christoforaki Zan Chu Eleonora Ciceri Sergio Consoli Christoph Csallner Soteris Demetriou Martina Deplano Mayank Dhiman Anh Dinh Chaabane Djeraba Trinh-Minh-Tri Do Zhicheng Dou Ahmed El-Kishky Alessandro Epasto Nico Erbs Ivan Ermilov Stefano Faralli Wei Feng Yanjie Fu Luca Galli Huiji Gao Sidan Gao

Wenxuan Gao David Garcia Soriano Raúl García-Castro Dinesh Garg Daniel Garijo Christos Giatsidis Behzad Golshan Charles Gomez Anja Grunheid Pritam Gundecha Guibing Guo Honglei Guo Zhen Hai Aidan Hogan Christopher Homan Junjie Hu Tianran Hu Silu Huang Ioana Hulpus Fuad Jamour Lifeng Jia Minhao Jiang Xin Jin Manas Joglekar Isaac Jones Nobuhiro Kaji Shankar Kalyanaraman Alexandros Karatzoglou Rrasoul Karimi Sarvnaz Karimi Gilad Katz Ali Khalili Maleq Khan Reza Khani Byoungjip Kim Donghyeon Kim Hyeongsik Kim Seongsoon Kim Aleksandra Korolova Georg Krempl Shamanth Kumar Yongchul Kwon Sarasi Lalithsena Riccardo Lancellotti Tobias Lauinger Danielle H. Lee Randall Lewis Baichuan Li Matteo Lissandrini Bin Liu Guannan Liu Jing Liu Paul Liu Xitong Liu Cheng Long Gang Luo Zongyang Ma Fadi Maali

Gabriel Magno Ahmad Mahmoody Fragkiskos Malliaros Jian Mao Andrea Mauri Sarah Meiklejohn Weiyi Meng Daniela Miao David Milne Andrea Moro Davide Mottin Collin Mulliner Seffi Naor Hamid Nazerzadeh Daniel Neill Vinh Nguyen Greg Norcie Besmira Nushi Andrea Nuzzolese Renato Paes Leme Martin Pal Xiang Pan Andre Panisson Dimitra Papadimitriou Ulrich Paquet Sharon Paradesi Souneil Park Bibek Paudel Michael Paul Paul Pearce Jaakko Peltonen Chengbin Peng Silvio Peroni Mohammad Taher Pilehvar Adrienne Porter Felt Davide Proserpio Zhenyang Qu Zhi Qu Nur Aini Rakhmawati Suhas Ranganath Vaibhav Rastogi Vibhor Rastogi Padmashree Ravindra Theodoros Rekatsinas Matteo Riondato Bene Rodriguez Francois Rousseau Delia Rusu Sudip Saha Shaghayegh Sahebi Darshan Santani Denis Savenkov Nicolas Schilling Suvash Sedhain Oshani Seneviratne Juan F. Sequeda Haichuan Shang Zechao Shang

External Reviewers List (Continued) Dennisv Shasha Eugene Shekita Chih-Ya Shen Wei Shen Fuming Shih Masumi Shirakawa Kelvin Sim Adish Singla Aleksander Slominski Ruihua Song Yanglei Song Janez Starc Amanda Stent Bor-Yiing Su Emilio Sulis Shashidhar Sundereisan Samarth Swarup Shulong Tan Xun Tang Sandeep Tata Alberto Tonon László Török Mitja Trampus Mikalai Tsytsarau Joerg Unbehauen

Marie Vasek Erik Vee Deepak Vijayakeerthi Riccardo Volonterio Anil Vullikanti Michael WŸrsch Benjamin Wang Chenguang Wang Gang Wang Quan Wang Taifeng Wang Lydia Weiland Xitao Wen Andrew G. West David Huanhuan Wu Le Wu Zhaohui Wu Marcin Wylot Hu Xia Wei Xie Tong Xu Wei Xu Yanyan Xu Hui Xue Jilong Xue Ning Yan Qiqi Yan

Bao Yang Liu Yang Zhi Yang Junjie Yao Peifeng Yin Naoki Yoshinaga Quanzeng You Honglin Yu Jianbo Yuan Quan Yuan Chao Zhang Chenyi Zhang Gensheng Zhang Lei Zhang Quanlu Zhang Wei Zhang Xiao Zhang Bo Zhao Xiaohan Zhao Xin Zhao Zheng Zhao Yong Zheng Linhong Zhu Yin Zhu Matteo Zignani Bo Zong

Demos Track

Track Chairs Jaewoo Kang (Korea Univ.) Yufei Tao (Chinese Univ. of Hong Kong)

PC Members Omar Alonso (Microsoft) Ching Man Au Yeung (Noah’s Ark Lab. Huawei) Amit Awekar (Indian Institute of Technology) Luciano Barbosa (AT&T Labs-Research) Khalid Belhajjame (Paris Dauphine Univ.) Jim Blomo (Yelp.com) Olivier Bolssier (DES Mines Saint-Etienne) Irene Celino (CEFRIEL-ICT Inst.) Byron Choi (Texas State Univ.) Yon Dohn Chung (Korea Univ.) Eli Cortez (Neemu Technologies) Alfredo Cuzzocrea (ICAR-CNR and Univ. of Calabria) Byron Gao (Texas State Univ.) Christophe Guéret (DANS) Shengbo Guo (Samsung) Mark Michael Hall (Univ. of Sheffield) Harry Halpin (World Wide Web Consortium) Dominique Hazael-Massieux (W3C) Steven C.H. Hoi (Nanyang Technological Univ.) Yi Hong (WalmartLabs) Eero Hyvönen (Aalto Univ. and Univ. of Helsinki) Jiwoon Jeon (Google) Kyomin Jung (KAIST) Zoubida Kedad (Univ. of Versailles) Chulyun Kim (Gachon Univ.)

Kwang-Hyun Kim(NHN Corporation) Irwin King (The Chinese Univ. of Hong Kong) Sangkeun Lee (Korea Univ.) Lipyeow Lim (Univ. of Hawaii at Manoa) Huan Liu (Arizona State Univ.) Mirella M. Moro (Univ. Federal de Minas Gerais – UFMG) Hao Ma (Microsoft Research) Jun-Ki Min (Korea Univ. of Technology and Education) Kyriakos Mouratidis (Singapore Management Univ.) Hye-Young Paik (Univ. of New South Wales) Sanghyun Park (Yonsei Univ.) Carlos Eduardo Pires (UFCG) Sourav S Bhowmick (Nanyang Technological Univ.) Mohamed Sharaf (Univ. of Queensland) Ryan Shaw (Univ. of North Carolina at Chapel Hill) Cheng Sheng (Google) Fabrizio Silvestri (ISTI – CNR) Damires Souza (IFPB) Georgy Vouros (Univ. of Piraeus) Xufei Wang (Arizona State Univ.) Taifeng Wang (Microsoft Research Asia) Xiaokui Xiao (Nanyang Technological Univ.) Hwanjo Yu (POSTECH) Rui Zhang (Univ. of Melbourne) Shuigeng Zhou (Fudan Univ.)

Developers Track

Track Chairs

Alejandro Jaimes (Yahoo! Labs) Seokchan Channy Yun (Daum Communications Corp.)

PC Members

Frédéric Wenzel (Mozilla Corp) Lin Clark (DERI) Daniel Meredith (Google, Inc)

Industry Track Advisory Committee Track Chairs

Rakesh Agrawal (Microsoft Research) Chang Song (NAVER)

Advisory Committee Adam Messinger (Twitter CTO) Won Kim (Professor at Gacheon University) Henk Goosen (OptumSoft CEO/CTO) Raffi Krikorian (Twitter VP of Engineering) Myle Ott (Facebook) Greg Malewicz (Facebook) Ron Brachman (Head of Yahoo Labs) Prabhakar Raghavan (VP of Engineering at Google) Qi Lu (Executive VP at Microsoft) Rajesh Parekh (Sr. Director at Groupon)

Ph.D. Symposium Track

Track Chairs Jianyong Wang (Tsinghua Univ.) Hayato Yamana (Waseda Univ.)

PC Members Sayaka Akioka (Meiji Univ.) Enhong Chen (Univ. of Science and Technology of China) Gao Cong (Nanyang Technological Univ.) Atsushi Fujii (Tokyo Institute of Technology) Sumio Fujita (Yahoo! Japan) Kin Fun Li (Univ. of Victoria) Yu Hirate (Rakuten Institute of Technology) Luke Huan (Univ. of Kansas) Jianbin Huang (Xidian Univ., China) Adam Jatowt (Kyoto Univ.) Lili Jiang (Max-Planck-Institut für Informatik) Kazuhiro Kazama (Wakayama Univ.) Mengchi Liu (Carleton Univ.) Ping Luo (HP Research Labs China) Shuai Ma (Beihang Univ.) Shinsuke Nakajima (Kyoto Sangyo Univ.) Satoshi Oyama (Hokkaido Univ.) Tieyun Qian (Wuhan Univ.) Arnon Rungsawang (Kasetsart Univ.) Tetsuya Sakai (Waseda Univ.) Wei Shen (Tsinghua Univ.) Tian Tian (Manhattan College) Jing Wang (The Hong Kong Univ. of Science and Technology) Junjie Wu (Beihang Univ.) Xintao Wu (Univ. of North Carolina at Charlotte) Hwanjo Yu (Pohang Univ. of Science and Technology) Min Zhang (Tsinghua Univ.)

Posters Track

Track Chairs Dongman Lee (KAIST) Wolfgang Nejdl (Univ. of Hannover)

PC Members

Dirk Ahlers (Norwegian Univ. of Science and Technology) Yong-Yeol Ahn (Indiana Univ. Bloomington) Mark Baker (Rutgers, The State Univ. of New Jersey) Wolf-Tilo Balke (Institut für Informationssysteme, TU

Braunschweig) Vladimir Barash (Morningside Analytics) Marco Brambilla (Politecnico di Milano) Carlos Castillo (Qatar Computing Research Institute) Meeyoung Cha (KAIST) Michele Colajanni (Univ. of Modena) Richard Cyganiak (Digital Enterprise Research

Institute) Florian Daniel (Univ. of Trento) Atish Das Sarma (eBay Research Labs) Stefan Dietze (L3S Research Center) Peter Dolog (Univ. of Aalborg) Nick Doty (UC Berkeley) Flavius Frasincar (Erasmus Univ.) Martin Gaedke (Chemnitz Univ. of Technology) Kwang-Il Goh (Korea Univ.) Luiz Goncalves (Universidade Federal do Rio Grande do Norte) Michael Hausenblas (Digital Enterprise Research Institute) Qi He (LinkedIn) Vivien Helmut (Telekom) Andreas Henrich (Univ. of Bamberg) Laura Hollink (Vrije Universiteit) Seiji Isotani (Instituto de Ciencias Exactas) Youngjae Jang (KAIST)

Christopher Jones (Cardiff Univ.) Murat Kantarcioglu (The Univ. of Texas at Dallas) Huykang Kim (Korea Univ.) Haewoon Kwak (Telefonica) Christoph Lange (Univ. of Bonn) Jong Gun Lee (Ericsson) Jae-Gil Lee (KAIST) Sune Lehmann (Technical Univ. of Denmark) Olga Liskin (Leibniz Univ. of Hanover) Simon Mayer (ETH Zurich) Lionel Medini (Centre national de la recherche scientifique) Mirco Musolesi (Univ. of Birmingham) Claudia Niederée (L3S Research Center) Paolo Parigi (Stanford Univ.) Juyong Park (KAIST) Cesare Pautasso (Univ. of Lugano) Ross Purves (Univ. of Zurich) Thomas Risse (L3S Research Center) Carolyn Rose (Carnegie Mellon Univ.) Thomas Sandholm (Hewlett-Packard Laboratories) Felix Sasaki (DFKI) Ansgar Sasaki (Univ. of Mannheim, Germany) Lars Schmidt-Thieme (Univ. of Hildesheim) Eric Sodomka (Brown Univ.) Seung-Woo Son (Hanyang Univ.) Markus Strohmaier (Univ. of Koblenz-Landau) Stefan Tai (Karlsruhe Institute of Technology) Dashun Wang (IBM) Marco Winckler (Univ. Paul Sabatier) Hui Xiong (Rutgers, The State Univ. of New Jersey)

Tutorial Organizers 1 Online Learning and Linked Data - Lessons

Learned and Best Practices John Domingueand Alexander Mikroyannidis

2 Entity Resolution in the Web of Data Kostas Stefanidis, Vasilis Efthymiou, Melanie Herschel and Vassilis Christophides

3 Towards a Social Media Analytics Platform: Event Detection and Description for Microblogs

Manish Gupta and Kevin Chang

4 Trust in Social Computing Jiliang Tang and Huan Liu

5 Re-using Media On The Web Lyndon Nixon, Vasileios Mezaris and Benoit Huet

6 The Mobile Semantic Web Shonali Krishnaswamy and Yuan-Fang Li

7 Concept-Level Sentiment Analysis Erik Cambria

8 Social Recommender Systems Ido Guy

9 Social Spam, Campaigns, Misinformation and Crowdturfing

Kyumin Lee, James Caverlee and Calton Pu

10 Scalability and Efficiency Challenges in Large-Scale Web Search Engines

B. Barla Cambazoglu and Ricardo Baeza-Yates

11 E-commerce Product Search: Personalization, Diversification, and beyond

Atish Das Sarma, Nish Parikh and Neel Sundaresan

12 Computational Models for Social Influence Analysis

Jie Tang and Jimeng Sun

13 Learning to Efficiently Rank on Big Data Lidan Wang, Jimmy Lin, Donald Metzler and Jiawei Han

Web Science Track Track Program Chairs

Harith Alani (Knowledge Media Institute) Matthew Weber (Rutgers University)

PC Members

Robert Ackland (The Australian National Univ.) Nitin Agarwal (Univ. of Arkansas at Little Rock) Hans Akkermans (VU Univ. Amsterdam) Pramod Anantharam (Knoesis Center) Lora Aroyo (VU Univ. Amsterdam) Youngmin Baek (Yonsei Univ.) Payam Barnaghi (Univ. of Surrey) Tamas David-Barrett (Univ. Oxford) Stephane B. Bazan (Universite Saint-Joseph de Beyrouth) Kalina Bontcheva (Univ. of Sheffield) John Breslin (National Univ. of Ireland, Galway) Pamela Briggs (Northumbria Univ.) Gregoire Burel (The Open Univ.) Elizabeth Ampaeli Cano (Aston Univ.) Leslie Carr (Univ. of Southampton) Ciro Cattuto (ISI Foundation) Meeyoung Cha (KAIST) Smitashree Choudhury (KMI, The Open Univ.) Edward Curry (National Univ. of Ireland, Galway) Mathieu D’Aquin (Knowledge Media Institute, The

Open Univ.) Pieter De Leenheer (VU Amsterdam) Annalisa De Liddo(KMI, The Open Univ.) Stefan Dietze (L3S Research Center) Miriam Fernandez (KMI, Open Univ.) Emilio Ferrara (Indiana Univ., Bloomington) Alessandro Flammini (Indiana Univ.) Fabien Gandon (Inria) Darren Gergle (Northwestern Univ) Thomas Gottron (Univ. of Koblenz-Landau) Paul Groth (VU Univ. Amsterdam) Simon Harper (Univ. of Manchester) Conor Hayes (National Univ. of Ireland, Galway) Laura Hollink (VU Univ. Amsterdam) Clare Hooper (Univ. of Southampton) Karolin Eva Kappler (Fern Universitat in Hagen,) Ricardo Kawase (L3S Research Center & Leibniz Universitat Hannover)

Hong-Gee Kim (Seoul National Univ.) Yong-Chan Kim (Yonsei Univ.) Jerome Kunegis (Univ. of Koblenz-Landau) Wonjae Lee (KAIST) Yu-Ru Lin (Univ. of Pittsburgh) Catherine Marshall (Microsoft Research) Yelena Mejova (Qatar Computing Research Institute) Elaheh Momeni (Univ. of Vienna) Alexandre Monnin (Univ. Pantheon –-Sorbonne(Paris I)) Claudia Niederee (L3S Research Center) Natasha Noy (Stanford Univ.) Kieron O’Hara (Univ. of Southampton) Katya Ognyanova (Northeastern Univ.) Han Woo Park (Yeungnam Univ.) Denis Parra (Pontificia Universidad Catolica de Chile) Hemant Purohit (Ohio Center of Excellence in

Knowledge-enabled Computing (Kno.e.sis)) Daniele Quercia (Yahoo Labs) Miriam Redi (Eurecom) Matthew Rowe (Lancaster Univ) Hassan Saif, KMI (Open Univ.) Ralph Schroeder (Oxford Internet Institute) Zhenning Shangguan (Rensselaer Polytechnic Institute) Cuihua Shen (Univ. of Texas at Dallas) Elena Simperl (Univ. of Southampton) Steffen Staab (Univ. of Koblenz-Landau) Markus Strohmaier (Univ. of Koblenz-Landau) Ramine Tinati (Univ. of Southampton) Thanassis Tiropanis (Univ. of Southampton) Christoph Trattner (Technical Univ. of Graz, Austria) Michalis Vafopoulos (Nat’l Technical Univ. of Athens) Markel Vigo (Univ. of Manchester) Claudia Wagner (GESIS – Leibniz Institute for Social Sciences) Mark Weal (Univ. of Southampton) Craig Webber (The Univ. of Southampton) Ingmar Weber (Qatar Computing Research Institute) Tingshao Zhu (Institute of Psychology, Chinese

Academy of Sciences)

Workshop Organizers

1 6th Web Intelligence and Communities Workshop (WI&C 2014)

Rajendra Akerkar, Pierre Maret and Laurent Vercouter

2 Vertical Search Relevance Workshop Hongbo Deng, Jiang Bian, Yi Chang and Neel Sundaresan

3 SOCM2014: The Theory and Practice of Social Machines

Nigel Shadbolt, James Hendler, Noshir Contractor and Elena Simperl

4 The 6th Annual Workshop on Simplifying Complex Networks for Practitioners

Aziz Mohaisen, Hyoungshick Kim, Yong Li, Pan Hui and Nishanth Sastry

5 WebQuality 2014 Adam Jatowt, Carlos Castillo, James Caverlee and Katsumi Tanaka

6 Fifth International Workshop on Web APIs and RESTful Design

Ruben Verborgh, Thomas Steiner and Carlos Pedrinaci

7 #Microposts2014 – The 4th Making Sense of Microposts Workshop

Matthew Rowe, Milan Stankovic and Aba-Sah Dadzie

8 SNOW 2014: 2nd Workshop on Social News on the Web

Gianmarco De Francisci Morales, Luca Maria Aiello, Fabrizio Silvestri and Symeon Papadopoulos

9 DEOS'14: Data Extraction and Object Search ‘14 Tim Furche, Giorgio Orsi, Paolo Merialdo, and Valter Crescenzi

10 Workshop on Big Graph Mining U Kang, Leman Akoglu, Polo Chau and Christos Faloutsos

11 5th International Workshop on Modeling Social Media: Mining Big Data in Social Media and the Web (MSM 2014)

Alvin Chin, Martin Atzmueller and Christoph Trattner

12 BigScholar 2014: The First WWW Workshop on Big Scholarly Data: Towards the Web of Scholars

Feng Xia, Irwin King and Huan Liu

13 4th Temporal Web Analytics Workshop(TempWeb)

Ricardo Baeza-Yates, Julien Masanes and Marc Spaniol

14 7th International Workshop about Linked Data on the Web (LDOW2014)

Christian Bizer, Tom Heath, Sören Auer and Tim Berners-Lee

15 5th International Workshop on Social Recommender Systems (SRS2014)

Jian Wang, Ido Guy and Li Chen

16 2nd International Web Observatory Workshop (WOW2014)

Kevin Page, David De Roure and Wolfgang Nejdl

17 2nd Public Health in the Digital Age: Social Media, Crowdsourcing and Participatory Systems (2nd PHDA 2014)

Patty Kostkova, Daniela Paolotti and John Brownstein

18 Connecting Online & Offline Life (COOL’2014) Emilio Ferrara, YY Ahn, Yana Volkovich and Young-Ho Eom

19 Workshop on Web-based Education Technologies (WebET 2014)

Irwin King and Bebo White

20 3rd Large Scale Network Anaysis (LSNA) Qi He, Yuanyuan Tian, and Toyotaro Suzumura