The 23Rd International World Wide Web Conference (WWW2014)

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) Chabane Djeraba (LIFL, Univ. of Sciences and Technologies of Jaime Arguello (Univ. of North Carolina at Chapel Hill) 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) RobertoNavigli (Sapienza Univ. of Rome/Univ. of Wolf-Tilo Balke (Technische Universitaet Braunschweig) 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 Aditya Parameswaran (Stanford University) Foundation) 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 Wenxuan Gao Gabriel Magno Ehab Abdelhamid David Garcia Soriano Ahmad Mahmoody Eytan Adar Raúl García-Castro Fragkiskos Malliaros Abhijin Adiga Dinesh Garg Jian Mao Manoj Agarwal Daniel Garijo Andrea Mauri Elif Aktolga Christos Giatsidis Sarah Meiklejohn Bernhard Amann Behzad Golshan Weiyi Meng Pramod Anantharam Charles Gomez Daniela Miao Mauro Andreolini Anja Grunheid David Milne Samur Araujo Pritam Gundecha Andrea Moro Cigdem Aslay Guibing Guo Davide Mottin Magda Balazinska Honglei Guo Collin Mulliner Nicola Barbieri Zhen Hai Seffi Naor Cosmin Basca Aidan Hogan Hamid Nazerzadeh Aditya Bashkara Christopher Homan Daniel Neill Vincent Bindschadler Junjie Hu Vinh Nguyen Sebastian Blohm Tianran Hu Greg Norcie Alessandro Bozzon Silu Huang Besmira Nushi Adrian M.P. Brasoveanu Ioana Hulpus Andrea Nuzzolese George Brova Fuad Jamour Renato Paes Leme Carlos Buil Aranda Lifeng Jia Martin Pal Keke Cai Minhao Jiang Xiang Pan Davide Canali Xin Jin Andre Panisson Yinzhi Cao Manas Joglekar Dimitra Papadimitriou Rose Catherine Isaac Jones Ulrich Paquet Prithwish Chakraborty Nobuhiro Kaji Sharon Paradesi Hung-Hsuan Chen Shankar Kalyanaraman Souneil Park Jia Chen Alexandros Karatzoglou Bibek Paudel Shirley Zhe Chen Rrasoul Karimi Michael Paul Shouyuan Chen Sarvnaz Karimi Paul Pearce Xixian Chen Gilad Katz Jaakko Peltonen Yuan-Hsin Chen Ali Khalili Chengbin Peng Yunfei Chen Maleq Khan Silvio Peroni Flavio Chierichetti Reza Khani Mohammad Taher Pilehvar Donghee Choi Byoungjip Kim Adrienne Porter Felt Jaehoon Choi Donghyeon Kim Davide Proserpio Maria Christoforaki Hyeongsik Kim Zhenyang Qu Zan Chu Seongsoon Kim Zhi Qu Eleonora Ciceri Aleksandra Korolova Nur Aini Rakhmawati Sergio Consoli Georg Krempl Suhas Ranganath Christoph Csallner Shamanth Kumar Vaibhav Rastogi Soteris Demetriou Yongchul Kwon Vibhor Rastogi Martina Deplano Sarasi Lalithsena Padmashree Ravindra Mayank Dhiman Riccardo Lancellotti Theodoros Rekatsinas Anh Dinh Tobias Lauinger Matteo Riondato Chaabane Djeraba Danielle H. Lee Bene Rodriguez Trinh-Minh-Tri Do Randall Lewis Francois Rousseau Zhicheng Dou Baichuan Li Delia Rusu Ahmed El-Kishky Matteo Lissandrini Sudip Saha Alessandro Epasto Bin Liu Shaghayegh Sahebi Nico Erbs Guannan Liu Darshan Santani Ivan Ermilov Jing Liu Denis Savenkov Stefano Faralli Paul Liu Nicolas Schilling Wei Feng Xitong Liu Suvash Sedhain Yanjie Fu Cheng Long Oshani Seneviratne Luca Galli Gang Luo Juan F. Sequeda Huiji Gao Zongyang Ma Haichuan Shang Sidan Gao Fadi Maali Zechao Shang External Reviewers List Marie Vasek Bao Yang (Continued) Erik Vee Liu Yang Dennisv Shasha Deepak Vijayakeerthi Zhi Yang Eugene Shekita Riccardo Volonterio Junjie Yao Chih-Ya Shen Anil Vullikanti Peifeng Yin Wei Shen Michael WÅ¸rsch Naoki Yoshinaga Fuming Shih Benjamin Wang Quanzeng You Masumi Shirakawa Chenguang Wang Honglin Yu Kelvin Sim Gang Wang Jianbo Yuan Adish Singla Quan Wang Quan Yuan Aleksander Slominski Taifeng Wang Chao Zhang Ruihua Song Lydia Weiland Chenyi Zhang Yanglei Song Xitao Wen Gensheng Zhang Janez Starc Andrew G. West Lei Zhang Amanda Stent David Quanlu Zhang Bor-Yiing Su Huanhuan Wu Wei Zhang Emilio Sulis Le Wu Xiao Zhang Shashidhar Sundereisan Zhaohui Wu Bo Zhao Samarth Swarup Marcin Wylot Xiaohan Zhao Shulong Tan Hu Xia Xin Zhao Xun Tang Wei Xie Zheng Zhao Sandeep Tata Tong Xu Yong Zheng Alberto Tonon Wei Xu Linhong Zhu László Török Yanyan Xu Yin Zhu Mitja Trampus Hui Xue Matteo Zignani Mikalai Tsytsarau Jilong Xue Bo Zong Joerg Unbehauen Ning Yan Qiqi Yan

Demos Track

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

PC Members Omar Alonso (Microsoft) Kwang-Hyun Kim(NHN Corporation) Ching Man Au Yeung (Noah’s Ark Lab. Huawei) Irwin King (The Chinese Univ. of Hong Kong) Amit Awekar (Indian Institute of Technology) Sangkeun Lee (Korea Univ.) Luciano Barbosa (AT&T Labs-Research) Lipyeow Lim (Univ. of Hawaii at Manoa) Khalid Belhajjame (Paris Dauphine Univ.) Huan Liu (Arizona State Univ.) Jim Blomo (Yelp.com) Mirella M. Moro (Univ. Federal de Minas Gerais – UFMG) Olivier Bolssier (DES Mines Saint-Etienne) Hao Ma (Microsoft Research) Irene Celino (CEFRIEL-ICT Inst.) Jun-Ki Min (Korea Univ. of Technology and Education) Byron Choi (Texas State Univ.) Kyriakos Mouratidis (Singapore Management Univ.) Yon Dohn Chung (Korea Univ.) Hye-Young Paik (Univ. of New South Wales) Eli Cortez (Neemu Technologies) Sanghyun Park (Yonsei Univ.) Alfredo Cuzzocrea (ICAR-CNR and Univ. of Calabria) Carlos Eduardo Pires (UFCG) Byron Gao (Texas State Univ.) Sourav S Bhowmick (Nanyang Technological Univ.) Christophe Guéret (DANS) Mohamed Sharaf (Univ. of Queensland) Shengbo Guo (Samsung) Ryan Shaw (Univ. of North Carolina at Chapel Hill) Mark Michael Hall (Univ. of Sheffield) Cheng Sheng (Google) Harry Halpin (World Wide Web Consortium) Fabrizio Silvestri (ISTI – CNR) Dominique Hazael-Massieux (W3C) Damires Souza (IFPB) Steven C.H. Hoi (Nanyang Technological Univ.) Georgy Vouros (Univ. of Piraeus) Yi Hong (WalmartLabs) Xufei Wang (Arizona State Univ.) Eero Hyvönen (Aalto Univ. and Univ. of Helsinki) Taifeng Wang (Microsoft Research Asia) Jiwoon Jeon (Google) Xiaokui Xiao (Nanyang Technological Univ.) Kyomin Jung (KAIST) Hwanjo Yu (POSTECH) Zoubida Kedad (Univ. of Versailles) Rui Zhang (Univ. of Melbourne) Chulyun Kim (Gachon Univ.) 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 Christopher Jones (Cardiff Univ.) Technology) Murat Kantarcioglu (The Univ. of Texas at Dallas) Yong-Yeol Ahn (Indiana Univ. Bloomington) Huykang Kim (Korea Univ.) Mark Baker (Rutgers, The State Univ. of New Jersey) Haewoon Kwak (Telefonica) Wolf-Tilo Balke (Institut für Informationssysteme, TU Christoph Lange (Univ. of Bonn) Braunschweig) Jong Gun Lee (Ericsson) Vladimir Barash (Morningside Analytics) Jae-Gil Lee (KAIST) Marco Brambilla (Politecnico di Milano) Sune Lehmann (Technical Univ. of Denmark) Carlos Castillo (Qatar Computing Research Institute) Olga Liskin (Leibniz Univ. of Hanover) Meeyoung Cha (KAIST) Simon Mayer (ETH Zurich) Michele Colajanni (Univ. of Modena) Lionel Medini (Centre national de la recherche Richard Cyganiak (Digital Enterprise Research scientifique) Institute) Mirco Musolesi (Univ. of Birmingham) Florian Daniel (Univ. of Trento) Claudia Niederée (L3S Research Center) Atish Das Sarma (eBay Research Labs) Paolo Parigi (Stanford Univ.) Stefan Dietze (L3S Research Center) Juyong Park (KAIST) Peter Dolog (Univ. of Aalborg) Cesare Pautasso (Univ. of Lugano) Nick Doty (UC Berkeley) Ross Purves (Univ. of Zurich) Flavius Frasincar (Erasmus Univ.) Thomas Risse (L3S Research Center) Martin Gaedke (Chemnitz Univ. of Technology) Carolyn Rose (Carnegie Mellon Univ.) Kwang-Il Goh (Korea Univ.) Thomas Sandholm (Hewlett-Packard Laboratories) Luiz Goncalves (Universidade Federal do Rio Grande Felix Sasaki (DFKI) do Norte) Ansgar Sasaki (Univ. of Mannheim, Germany) Michael Hausenblas (Digital Enterprise Research Lars Schmidt-Thieme (Univ. of Hildesheim) Institute) Eric Sodomka (Brown Univ.) Qi He (LinkedIn) Seung-Woo Son (Hanyang Univ.) Vivien Helmut (Telekom) Markus Strohmaier (Univ. of Koblenz-Landau) Andreas Henrich (Univ. of Bamberg) Stefan Tai (Karlsruhe Institute of Technology) Laura Hollink (Vrije Universiteit) Dashun Wang (IBM) Seiji Isotani (Instituto de Ciencias Exactas) Marco Winckler (Univ. Paul Sabatier) Youngjae Jang (KAIST) Hui Xiong (Rutgers, The State Univ. of New Jersey)

Tutorial Organizers

1 Online Learning and Linked Data - Lessons John Domingueand Alexander Mikroyannidis Learned and Best Practices 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 Manish Gupta and Kevin Chang Detection and Description for Microblogs 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 Kyumin Lee, James Caverlee and Calton Pu Crowdturfing 10 Scalability and Efficiency Challenges in Large- B. Barla Cambazoglu and Ricardo Baeza-Yates Scale Web Search Engines

11 E-commerce Product Search: Atish Das Sarma, Nish Parikh and Neel Sundaresan Personalization, Diversification, and beyond

12 Computational Models for Social Influence Jie Tang and Jimeng Sun Analysis 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.) Hong-Gee Kim (Seoul National Univ.) Nitin Agarwal (Univ. of Arkansas at Little Rock) Yong-Chan Kim (Yonsei Univ.) Hans Akkermans (VU Univ. Amsterdam) Jerome Kunegis (Univ. of Koblenz-Landau) Pramod Anantharam (Knoesis Center) Wonjae Lee (KAIST) Lora Aroyo (VU Univ. Amsterdam) Yu-Ru Lin (Univ. of Pittsburgh) Youngmin Baek (Yonsei Univ.) Catherine Marshall (Microsoft Research) Payam Barnaghi (Univ. of Surrey) Yelena Mejova (Qatar Computing Research Institute) Tamas David-Barrett (Univ. Oxford) Elaheh Momeni (Univ. of Vienna) Stephane B. Bazan (Universite Saint-Joseph de Alexandre Monnin (Univ. Pantheon –-Sorbonne(Paris I)) Beyrouth) Claudia Niederee (L3S Research Center) Kalina Bontcheva (Univ. of Sheffield) Natasha Noy (Stanford Univ.) John Breslin (National Univ. of Ireland, Galway) Kieron O’Hara (Univ. of Southampton) Pamela Briggs (Northumbria Univ.) Katya Ognyanova (Northeastern Univ.) Gregoire Burel (The Open Univ.) Han Woo Park (Yeungnam Univ.) Elizabeth Ampaeli Cano (Aston Univ.) Denis Parra (Pontificia Universidad Catolica de Chile) Leslie Carr (Univ. of Southampton) Hemant Purohit (Ohio Center of Excellence in Ciro Cattuto (ISI Foundation) Knowledge-enabled Computing (Kno.e.sis)) Meeyoung Cha (KAIST) Daniele Quercia (Yahoo Labs) Smitashree Choudhury (KMI, The Open Univ.) Miriam Redi (Eurecom) Edward Curry (National Univ. of Ireland, Galway) Matthew Rowe (Lancaster Univ) Mathieu D’Aquin (Knowledge Media Institute, The Hassan Saif, KMI (Open Univ.) Open Univ.) Ralph Schroeder (Oxford Internet Institute) Pieter De Leenheer (VU Amsterdam) Zhenning Shangguan (Rensselaer Polytechnic Institute) Annalisa De Liddo(KMI, The Open Univ.) Cuihua Shen (Univ. of Texas at Dallas) Stefan Dietze (L3S Research Center) Elena Simperl (Univ. of Southampton) Miriam Fernandez (KMI, Open Univ.) Steffen Staab (Univ. of Koblenz-Landau) Emilio Ferrara (Indiana Univ., Bloomington) Markus Strohmaier (Univ. of Koblenz-Landau) Alessandro Flammini (Indiana Univ.) Ramine Tinati (Univ. of Southampton) Fabien Gandon (Inria) Thanassis Tiropanis (Univ. of Southampton) Darren Gergle (Northwestern Univ) Christoph Trattner (Technical Univ. of Graz, Austria) Thomas Gottron (Univ. of Koblenz-Landau) Michalis Vafopoulos (Nat’l Technical Univ. of Athens) Paul Groth (VU Univ. Amsterdam) Markel Vigo (Univ. of Manchester) Simon Harper (Univ. of Manchester) Claudia Wagner (GESIS – Leibniz Institute for Social Conor Hayes (National Univ. of Ireland, Galway) Sciences) Laura Hollink (VU Univ. Amsterdam) Mark Weal (Univ. of Southampton) Clare Hooper (Univ. of Southampton) Craig Webber (The Univ. of Southampton) Karolin Eva Kappler (Fern Universitat in Hagen,) Ingmar Weber (Qatar Computing Research Institute) Ricardo Kawase (L3S Research Center & Leibniz Tingshao Zhu (Institute of Psychology, Chinese Universitat Hannover) Academy of Sciences)

Workshop Organizers

1 6th Web Intelligence and Communities Workshop Rajendra Akerkar, Pierre Maret and Laurent Vercouter (WI&C 2014) 2 Vertical Search Relevance Workshop Hongbo Deng, Jiang Bian, Yi Chang and Neel Sundaresan 3 SOCM2014: The Theory and Practice of Social Nigel Shadbolt, James Hendler, Noshir Contractor and Machines Elena Simperl 4 The 6th Annual Workshop on Simplifying Aziz Mohaisen, Hyoungshick Kim, Yong Li, Pan Hui and Complex Networks for Practitioners Nishanth Sastry 5 WebQuality 2014 Adam Jatowt, Carlos Castillo, James Caverlee and Katsumi Tanaka 6 Fifth International Workshop on Web APIs and Ruben Verborgh, Thomas Steiner and Carlos Pedrinaci RESTful Design 7 #Microposts2014 – The 4th Making Sense of Matthew Rowe, Milan Stankovic and Aba-Sah Dadzie Microposts Workshop 8 SNOW 2014: 2nd Workshop on Social News on Gianmarco De Francisci Morales, Luca Maria Aiello, the Web 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 Alvin Chin, Martin Atzmueller and Christoph Trattner Media: Mining Big Data in Social Media and the Web (MSM 2014) 12 BigScholar 2014: The First WWW Workshop on Feng Xia, Irwin King and Huan Liu Big Scholarly Data: Towards the Web of Scholars 13 4th Temporal Web Analytics Ricardo Baeza-Yates, Julien Masanes and Marc Spaniol Workshop(TempWeb) 14 7th International Workshop about Linked Data on Christian Bizer, Tom Heath, Sören Auer and the Web (LDOW2014) Tim Berners-Lee 15 5th International Workshop on Social Jian Wang, Ido Guy and Li Chen Recommender Systems (SRS2014) 16 2nd International Web Observatory Workshop Kevin Page, David De Roure and Wolfgang Nejdl (WOW2014) 17 2nd Public Health in the Digital Age: Social Media, Patty Kostkova, Daniela Paolotti and John Brownstein Crowdsourcing and Participatory Systems (2nd PHDA 2014) 18 Connecting Online & Offline Life (COOL’2014) Emilio Ferrara, YY Ahn, Yana Volkovich and Young-Ho Eom 19 Workshop on Web-based Education Technologies Irwin King and Bebo White (WebET 2014) 20 3rd Large Scale Network Anaysis (LSNA) Qi He, Yuanyuan Tian, and Toyotaro Suzumura