WWW 2013 22nd International World Wide Web Conference

General Chairs: Daniel Schwabe (PUC-Rio – Brazil) Virgílio Almeida (UFMG – Brazil) Hartmut Glaser (CGI.br – Brazil)

Research Track: Ricardo Baeza-Yates (Yahoo! Labs – Spain & Chile) Sue Moon (KAIST – South Korea)

Practice and Experience Track: Alejandro Jaimes (Yahoo! Labs – Spain) Haixun Wang (MSR – China)

Developers Track: Denny Vrandečić (Wikimedia – Germany) Marcus Fontoura (Google – USA)

Demos Track: Bernadette F. Lóscio (UFPE – Brazil) Irwin King (CUHK – Hong Kong)

W3C Track: Marie-Claire Forgue (W3C Training, USA)

Workshops Track: Alberto Laender (UFMG – Brazil) Les Carr (U. of Southampton – UK)

Posters Track: Erik Wilde (EMC – USA) Fernanda Lima (UNB – Brazil)

Tutorials Track: Bebo White (SLAC – USA) Maria Luiza M. Campos (UFRJ – Brazil)

Industry Track: Marden S. Neubert (UOL – Brazil)

Proceedings and Metadata Chair: Altigran Soares da Silva (UFAM - Brazil)

Local Arrangements Committee: Chair – Hartmut Glaser Executive Secretary – Vagner Diniz PCO Liaison – Adriana Góes, Caroline D’Avo, and Renato Costa Conference Organization Assistant – Selma Morais International Relations – Caroline Burle Technology Liaison – Reinaldo Ferraz UX Designer / Web Developer – Yasodara Córdova, Ariadne Mello Internet infrastructure - Marcelo Gardini, Felipe Agnelli Barbosa Administration– Ana Paula Conte, Maria de Lourdes Carvalho, Beatriz Iossi, Carla Christiny de Mello Legal Issues – Kelli Angelini Press Relations and Social Network – Everton T. Rodrigues, S2Publicom and EntreNós PCO – SKL Eventos e Turismo

Student Volunteers Coordination: Wagner Meira (UFMG) Yasodara Córdova (NIC.br) Sebastien Forget (Canada) John Miller (Australia) (International Volunteers)

Program Committee Behavioral analysis and personalization Eugene Agichtein (Emory U), Yoelle Mareek (Yahoo! Labs) – Chairs

Members Mikhail Ageev, NIVC MGU Peter Bailey, MSR Nicolas Belkin, Rutgers University Paul Bennet, MSR Edward Bortnikov, Yahoo! Peter Brusilovsky Georg Buscher Nick Craswell, MSR Fernando Diaz, Microsoft Research Andy Edmonds Henry Feild, Umass Antonio Gulli Qi Guo, Emory University Jeff Huang Rosie Jones Diane Kelly, UNC Gueorgi Kossinets Dmitry Lagun, Emory University Mounia Lalmas Ronny Lempel, Yahoo! Labs Andreas Paepcke, Stanford Dan Pelleg Matt Richardson, MSR Kerry Rodden Tetsuya Sakai Mark Smucker, University of Waterloo Jaime Teevan Andrew Tomkins, Google Ingmar Weber Ryen White, MSR Yisong Yue Zijian Zheng, MSR Dav Zimak

Program Committee - Content analysis Claire Cardie (Cornell), Evgeniy Gabrilovich (Google) – Chairs

Members Aris Anagnostopoulos, University of Roma Donald Metzler Azin Ashkan, University of Waterloo Prasenjit Mitra, PSU Michael Bendersky, Umass Bo Pang Misha Bilenko, MSR Dmitry Pechyony, Technion Michael Cafarella, Umich Fuchun Peng, Yahoo! Yunbo Cao, MSR John Prager, IBM Carlos Castillo, U. of Chile Kunal Punera, Utexas Deepayan Chakrabarti, CMU Kira Radinsky Brian Davison, Lehigh U. Filip Radlinski, Microsoft Doug Downey, Northwestern U. Vibhor Rastogi Gideon Dror, Sunita Sarawagi, IIT Bombay Hui Fang, U. Del Burr Settles, CMU Dennis Fetterly, MSR Stefan Siersdorfer, University of Hannover Shantanu Godbole, Julia Stoyanovich, Upenn Iryna Gurevych Gerd Stumme, Uni, Kassel Bo, June Hsu, MSR Idan Szpektor, Yahoo! Tapas Kanungo Partha Talukdar Nick Koudas, U. of Toronto Xuanhui Wang, Yahoo! Georgia Koutrika, HP Gerhard Weikum Zornitsa Kozareva, USC, ISI Elad Yom, Tov Oren Kurland, Technion Torsten Zesch, Tu Darmstadt Lillian Lee, Cornell Hongyuan Zha, GATech Chengkai Li, UTA Chengxiang Zhai, UIUC Hao Ma, MSR Dell Zhang, BBK Qiaozhu Mei, Umich

Program Committee - Software infrastructure and their performance, scalability, and availability Torsten Suel (PI), Zhi-Li Zhang (UMinnesota) – Chairs

Members Michele Colajanni, University of Modena Pablo Rodriguez, Telefonica Research Anja Feldmann, TU Berlin Sambit Sahu, IBM Research Daniel Figueiredo, COPPE/UFRJ Subhabrata Sen, AT&T Research Krishna Kant, Intel Corporation Alexander Shraer, Google Purushottam Kulkarni, IIT Bombay Ramesh Sitaraman, Department of Computer Science, John C.S. Lui, The Chinese University of Hong Kong University of Massachusetts, Amherst Grzegorz Malewicz, Facebook Malgorzata Steinder, IBM Research Martin May, Technicolor Sandeep Uttamchandani, Beng Chin Ooi, National University of Singapore Jacobus Vandermerwe, Giovanni Pacifici, IBM Research Maja Vukovic, IBM Research Michael Rabinovich, Case Western Reserve University Zhen Xiao, Peking University

Program Committee - Web mining Tanya Berger-Wolf (UIC), Bing Liu (UIC), Kyuseok Shim (SNU) – Chairs

Members Charu Aggarwal, IBM Sangkeun Lee, Department of Computer Science and Amr Ahmed, Yahoo! Labs Engineering, Korea University Roberto Bayardo, Google Hang Li, Huawei Noah’s Arc Lab Smriti Bhagat, Technicolor Xiaoli Li, Institute for Infocomm Research Yun Chi, NEC Laboratories America Huan Liu, Arizona State University Chin, Wan Chung, KAIST Tie, Yan Liu, Microsoft Research Asia Gao Cong, Nanyang Technological University Yue Lu, University of Illinois at Urbana, Champaign David Crandall, Indiana University Michael Lyu Mayur Datar, Google Inc. Dunja Mladenic, J. Stefan Institute Eduard Dragut Bamshad Mobasher, DePaul University Georges Dupret, Yahoo! Labs Arjun Mukherjee, University of Illinois--Chicago Tina Eliassi, Rad, Rutgers University Olfa Nasraoui, University of Louisville Martin Ester, Department of Computer Science, Simon Zaiqing Nie, Microsoft Research Asia Fraser University, Canada Alexandros Ntoulas, Zynga Christos Faloutsos, Carnegie Mellon University Srinivasan Parthasarathy, Department of Computer Ronen Feldman, Hebrew University Science and Engineering, The Ohio State University Michael Gamon, Microsoft Research Jian Pei, Simon Fraser University C. Lee Giles, Pennsylvania State University Mark Sandler, Google Aristides Gionis, Aalto University Dou Shen, Microsoft Adcenter Labs Dimitrios Gunopulos, UoA Myra Spiliopoulou, U. Magdeburg Jiawei Han, University of Illinois at Urbana, Champaign Jaideep Srivastava, University of Minnesota Wook, Shin Han, Kyungpook National University Lei Tang, @WalmartLabs Shawndra Hill, University of Pennsylvania Masashi Toyoda, University of Tokyo Nitin Jindal, Google Jianyong Wang, Tsinghua University Jaewoo Kang, Korea University Ke Wang, Simon Fraser University U Kang, Carnegie Mellon University Michael Wurst, TU Dortmund Sang, Wook Kim, Hanyang University Hui Xiong, Rutgers University Irwin King, The Chinese University of Hong Kong Hwanjo Yu, POSTECH Mayank Lahiri, University of Illinois at Chicago Jeffery Xu Yu, Dept. of Systems Engineering & Wai Lam, The Chinese University of Hong Kong Engineering Mngt, Chinese University of Hong Kong Hady Lauw, Singapore Management University Philip Yu, UIC Dongwon Lee, Penn State University Lei Zhang, University of Illinois at Chicago

Program Committee internet monetization and incentives Vanja Josifovski (Google), David Pennock (MSR NYC) – Chairs

Members Ramakrishna Akella, School of Engineering University Benjamin Lubin, Harvard of California, Santa Cruz Vahab Mirrokni, Google Research Sugato Basu, Google Research S. Muthukrishnan, Rutgers University Ye Chen, Microsoft Uri Nadav Ingemar Cox, University College London Hamid Nazerzadeh, USC Marshall School of Business Nikhil Devanur, Microsoft Research Mallesh Pai, University of Pennsylvania Marcus Fontoura, Google Inc Sandeep Pandey, Twitter Arpita Ghosh, Cornell University Michael Schapira, Yale University & U.C. Berkeley Gagan Goel, Google Research James G. Shanahan, Independent Consultant (San Sreenivas Gollapudi, Microsoft Research Francisco) Ronen Gradwohl, Weizmann Institute of Science Jayavel Shanmugasundaram, Google Inc. Maria Grineva, Yandex Eric Sodomka, Brown University Ralf Herbrich, Facebook Jian, Tao Sun, Microsoft Research Asia Patrick Hummel Neel Sundaresan, eBay Research Labs Krishnamurthy Iyer, University of Pennsylvania Ankur Teredesai, University of Washington Shaili Jain, Yale University Siva Viswanathan, University of Maryland Patrick Jordan, Microsoft Haifeng Wang, Baidu Radu Jurca Jun Yan, Microsoft Research Asia Sebastien Lahaie M. Yenmez, Carnegie Mellon University Ying Li Georgios Zervas, Yale University

Program Committee Search systems and applications Soumen Chakrabarti (IIT Mumbai), Wei-Ying Ma (MSR Asia) – Chairs

Members Omar Alonso, Microsoft Chin Yew Lin, Microsoft Research Asia Jaime Arguello, University of North Carolina Ling Liu, Georgia Tech at Chapel Hill Tie Yan Liu, Microsoft Research Asia Ching Man Au Yeung, ASTRI Dmitri Loguinov, Texas A&M Shenghua Bao, IBM China Research Lab David Losada, University of Santiago de Compostela Behshad Behzadi, Google Inc. Massimo Melucci, University of Padua Gloria Bordogna, National Research Council Sung Hyon Myaeng, Kaist of Italy, CNR Jian Yun Nie, Universit de Montral Rui Cai, Microsoft Research, Asia Iadh Ounis, University of Glasgow Yi Chang, Yahoo! Labs Umut Ozertem, Microsoft Zheng Chen, Microsoft Research Asia Gabriella Pasi, Universit degli STudi di Milano Bicocca Hong Cheng, The Chinese University of Hong Kong Simone Paolo Ponzetto, University of Rome Tao Cheng, Microsoft Research Redmond Davood Rafiei, University of Alberta Xueqi Cheng, Institute of Computing Technology, Sriram Raghavan, IBM Research India CAS, P. R. China Stefan Rueger, Knowledge Media Institute Pablo De La Fuente, GRINBD. Universidad de Altigran S. Da Silva, Federal University of Amazonas Valladolid Ralf Schenkel, Saarland University Edleno Silva De Moura, Universidade Federal do Uri Schonfeld, UCLA Amazonas Shuming Shi, Microsoft Research Asia Maarten de Rijke, University of Amsterdam Milad Shokouhi, Microsoft Research Arjen de Vries, CWI Mário J. Silva, IST/INESC ID Hongbo Deng, Yahoo! Fabrizio Silvestri, ISTI CNR Prasad Deshpande, IBM Research India D Sivakumar, Yahoo! Debora Donato, Yahoo! LabsBarcelona Alex Smola, Google Bin Gao, Microsoft Research Asia Marina Sokolova, Ashutosh Garg, Panayiotis Tsaparas, University of Ioannina Marcos Goncalves, Federal University of Minas Gerais Michalis Vazirgiannis, Department of Informatics, AUEB Maxim Gurevich, Google Adriano Veloso, UFMG Djoerd Hiemstra, University of Twente Stratis Viglas, University of Edinburgh, Steven C.H. Hoi, Nanyang Technological University School of Informatics Ming Hua, Facebook Inc. Tao Yang, Ask.com and UCSB Xuanjing Huang, Fudan University Emine Yilmaz, Microsoft Research Cambridge Jeannette Janssen, Dalhousie University Lei Zhang, Microsoft Research Asia Glen Jeh Min Zhang, Tsinghua University Jaap Kamps, University of Amsterdam Lidong Zhou, Microsoft Research, SV Evangelos Kanoulas, Google, Inc. Xiaoyan Zhu, Computer Science and Technology Alexander Kotov, Emory University Department, Tsinghua University, Beijing,China Kevin Lang, Yahoo! Research Nivio Ziviani, Department of Computer Science, Amy Langville, College of Charleston Federal University of Minas Gerais

Program Committee Security, privacy, trust, and abuse Krishna Gummadi (MPI-SWS) – Chair

Members Davide Balzarotti, Christian Kreibich, ICSI Bobby Bhattacharjee, Univ. of Maryland, College Park Christopher Kruegel, Univ. of California, Santa Barbara Elie Bursztein Ponnurangam Kumaraguru, IIIT Delhi Juan Caballero, IMDEA David Lie, University of Toronto Jon Crowcroft, University of Cambridge Ben Livshits, Microsoft Research Redmond Bryan Ford Harsha Madhyastha, UCR Saikat Guha, Microsoft Research India Arvind Narayanan, Princeton University Hamed Haddadi, QMUL Cristina Nita Rotaru, Purdue University Christian Hammer, Saarland University Vern Paxson, University of California, Berkeley Aniket Kate, Uni Saarland Charlie Reis, Google Yongdae Kim, KAIST Elaine Shi, University of Maryland, College Park Engin Kirda, Northeastern University Thorsten Strufe, TU Darmstadt Alek Kolcz, Twitter Andrew Warfield Aleksandra Korolova, Google Fang Yu, Microsoft Research Silicon Valley

Program Committee Semantic Web Deborah McGuinness (RPI), Steffen Staab (U of Koblenz) - Chairs

Members Hans Akkermans, VU University Amsterdam Jeff Heflin, Lehigh University Harith Alani, KMi, The Open University Pascal Hitzler, Kno.e.sis Center, Wright State University, Lora Aroyo, VU University Amsterdam Dayton, Ohio Christian Bizer, Freie Universität Berlin Jihie Kim, Information Science Institute Paul Buitelaar, DERI National University of Ireland, Manolis Koubarakis, National and Kapodistrian Galway University of Athens Philipp Cimiano, University of Bielefeld Markus Krötzsch, University of Oxford Philippe Cudré Mauroux, U. of Fribourg Boris Motik, University of Oxford Claudia D’Amato, Computer Science Department Natasha F. Noy, Stanford University University of Bari Jeff Z. Pan, University of Aberdeen Mathieu D’Aquin, Knowledge Media Institute, the Open Peter Patel Schneider, Self University Axel Polleres, Siemens AG Österreich / DERI, National Hasan Davulcu, Arizona State University University of Ireland, Galway Mike Dean, Raytheon BBN Technologies Daniel Schwabe, Dept. of Informatics, PUC Rio Li Ding, Rensselaer Polytechnic Institute Luciano Serafini, Fondazione Bruno Kessler Ying Ding, Indiana University Patrice Seyed, Jérôme Euzenat, INRIA & LIG Elena Simperl, KIT Tim Finin, UMBC Markus Strohmaier, Knowledge Management Institute Gerd Gröner, University of Koblenz Graz University of Technology Claudio Gutierrez, Universidad de Chile Rudi Studer, Karlsruher Institut für Technologie (KIT) Olaf Hartig, Humboldt Universität zu Berlin Thanh Tran, Institute AIFB Manfred Hauswirth, Digital Enterprise Research Institute Volker Tresp, Siemens AG, CT IC 4, Munich (DERI), Galway Evelyne Viegas, Microsoft Research

Program Committee User interfaces, human factors, and smart devices James Landay (UW), Nuria Oliver (Telefonica R&D) – Chairs

Members Florian Alt, University of Stuttgart Sepandar Kamvar, Stanford University Michael Bernstein Lyndon Kennedy, Yahoo! Research Jeffrey Bigham, University of Rochester Ora Lassila, Nokia Services Susanne Boll, University of Oldenburg Tessa Lau Joel Brandt, Adobe Systems, Inc. Yang Li Irene Celino, CEFRIEL Jalal Mahmud, IBM Research Almaden Matthew Chalmers, University of Glasgow Robert Miller, MIT CSAIL Mike Y. Chen, NTU Ingrid Mulder Ed H. Chi, PARC Jeffrey Nichols, IBM Almaden Research Center Karen Church, Telefonica Research Kenton O’Hara, Microsoft Research Henriette Cramer, Yahoo! Labs Alex Olwal, KTH Rodrigo De Oliveira, Telefonica Research Jerôme Picault, Alcatel Lucent Bell Labs Marco De Sa, Facebook Martin Pielot Emanuele Della Valle, DEI, Politecnico di Milano Jeff Pierce, Samsung Steven Drucker, Microsoft LiveLabs Myriam Ribiere, Alcatel Lucent Bell Labs Darren Edge, Microsoft Research Asia Enrico Rukzio, Ulm University Patrik Floreen, Helsinki Institute for Information Jose San Pedro Wandelmer, Technology HIIT, University of Helsinki N. Sadat Shami, IBM Research Yusuke Fukazawa, NTTDOCOMO, Inc. Stephan Steglich, FhI FOKUS Krzysztof Gajos, Harvard University Bongwon Suh, Adobe Daniel Gatica Perez, IDIAP Research Institute Manas Tungare, Google Per Olof Hedvall, Lund University Sarita Yardi, Umich

Program Committee Social networks and graph analysis Ashish Goel (U Stanford), Sharad Goel (MSR NYC), Wolfgang Nejdl (U of Hannover), Ben Zhao (UCSB) – (Chairs)

Members Lada Adamic, University of Michigan Kristina Lerman, USC Yong Yeol Ahn, Indiana University Bloomington Jure Leskovec, Stanford University Fabricio Benevenuto, Federal University of Ouro Preto David Liben Nowell, Carleton College (UFOP) Ee Peng Lim, Singapore Management University Paolo Boldi, Universita’ degli Studi di Milano Ashwin Machanavajjhala, Duke University Joseph Bonneau, University of Cambridge Michael Mahoney, Stanford University Meeyoung Cha, KAIST Cecilia Mascolo, University of Cambridge Augustin Chaintreau, Columbia University Winter Mason, Stevens Institute of Technology Wei Chen, MSR Asia Alan Mislove, Northeastern University Flavio Chierichetti, Sapienza University of Rome Sue Moon, KAIST Aaron Clauset, Santa Fe Institute Kamesh Munagala, Duke University Yafei Dai, PKU Jennifer Neville, Purdue University Atish Das Sarma, eBay Research Labs Alessandro Panconesi, Sapienza University of Rome David De Roure, Oxford e Research Centre, University of Spiros Papadimitriou, Rutgers University Oxford Paolo Parigi, Stanford University Gianluca Demartini, University of Fribourg Krishna Puttaswamy, Bell Labs, Alcatel Lucent Lisa Fleischer, Dartmouth Daniel Romero, Northwestern University Santo Fortunato, Complex Networks Lagrange Ant Rowstron, Microsoft Research Laboratory, ISI Foundation Giancarlo Ruffo, Universita’ di Torino Norbert Fuhr, University of Duisburg Essen Alessandra Sala, Alcatel Lucent Bell Labs Sabrina Gaito, Universita’ degli Studi di Milano Stefan Saroiu, Microsoft Research Brighten Godfrey, University of Illinois at Urbana Lars Schmidt Thieme, University of Hildesheim Champaign Rachel Schutt, Google Pankaj Gupta, Twitter, Inc. Haiying Shen, Clemson University Qi He, IBM Amit Sheth, Kno.e.sis Center, Wright State University Jake Hofman, Microsoft Research Michael Sirivianos, Cyprus University of Technology Andreas Hotho, University of Wuerzburg Jie Tang, Tsinghua University Stratis Ioannidis, Technicolor Eva Tardos, Cornell University Alejandro Jaimes, Yahoo! Research Evimaria Terzi, Boston University Kamal Jain, eBay Research Labs Sergei Vassilvitskii, Google Yashodhan Kanoria, Stanford University Sebastiano Vigna, Universita’ degli Studi di Milano David Kempe, University of Southern California Matthew Weber, Rutgers University Emre Kiciman, Microsoft Research Christo Wilson, Northeastern University Tamara Kolda, Sandia National Laboratories Xifeng Yan, University of California at Santa Barbara Silvio Lattanzi, Google Heather Zheng, UCSB

Program Committee Bridging structured and unstructured data Kevin Chang (UIUC), Peter Mika (Yahoo! Labs) - Chairs

Members Phillip Bohannon Marius Pasca Ji Rong Wen, MSR Oren Etzioni, U. of Washington Aamod Sane, Yahoo! Xing Xie, MSR Seung Won Hwang Anish Das Sarma, Stanford Cong Yu, Umich Chen Li, UCI S Sudarshan, IITB Jeffrey Yu, CUHK Yutaka Matsuo, U. Tokyo Yufei Tao, CUHK Christopher Olston, Google Kuansan Wang, MSR

Program Committee Web Engineering Schahram Dustdar (TU Wien), Geert-Jan Houben (TU Delft) - Chairs

Members Sören Auer, Universität Leipzig Gerti Kappel, Vienna University of Technology Maria Bielikova, Slovak University of Technology Frank Leymann, Universität Stuttgart Alessandro Bozzon, Politecnico di Milano Santiago Meliá, Universidad de Alicante Marco Brambilla, Politecnico di Milano Ali Mesbah, University of British Columbia Jordi Cabot, INRIA /École des Mines de Nantes Luis Olsina, La Pampa National University Fabio Casati, University of Trento Oscar Pastor, Universidad Politecnica de Valencia Sven Casteleyn, Vrije Universiteit Brussel Cesare Pautasso, University of Lugano Florian Daniel, University of Trento Maria da Graça Pimentel, University of São Paulo Paul Dantzig, IBM T.J. Watson Research Center Iv Ramakrishnan, Stony Brook University Oscar Diaz, University of the Basque Country Gustavo Rossi, Universidad Nacional de La Plata Peter Dolog, Aalborg University Michael Sheng, University of Adelaide Flavius Frasincar, Erasmus University Rotterdam Stefan Tai, Karlsruhe Institute of Technology Piero Fraternali, Politecnico di Milano Takehiro Tokuda, Tokyo Institute of Technology Martin Gaedke, Chemnitz University of Technology Bebo White, SLAC National Accelerator Laboratory Dragan Gasevic, Athabasca University Erik Wilde, EMC Corporation Michael Grossniklaus, U. Konstanz Marco Winkler, University Paul Sabatier Simon Harper, University of Manchester

Additional Reviewers

Abedelaziz Mohaisen Bo Adler Evan Patton, RPI Adam Doupé, UCSB Bo Zhao, Microsoft Evangelos Papalexakis, CMU Adila A. Krisnadhi Bo Zong, UCSB Fabio Drucker Adish Singla, ETH Zurich Bruno Martins Fan Yang, Microsoft Afroza Sultana, UTA C Seshadri, Sandia Fangqiu Han, UCSB Alessandro Epasto, Uniroma C. Seshadhri, Sandia Feng Pan, Microsoft Alex Beutel, CMU Changhu Wang, Microsoft Feng Qian, ATT Alex Chen, U. of Manchester Chao Zhou, CUHK Fragkiskos Malliaros, Alexander Bergmayr, TUWien Chen Cheng, CUHK Polytechnique Alexandros Karatzoglou, TID Chenghua Lin, Open University Francesco Pasquale Ali Pinar, Sandia Chenyi Zhang Francois Rousseau Alvaro Barreiro, UDC Chi Wang, U. of Illinois Fred Morstatter, ASU Amarnath Gupta, UCSD Christian von der Weth, DERI Gabriele Tolomei, Unive Amin Milani Fard, UBC Christoph Fehling, Uni Stuttgart Gang Luo, Microsoft Amit Joshi, UMN Christopher Head, UBC Georgeta Bordea, DERI Amogh Mahapatra Christos Giatsidis Georgios Valkanas Anand Bhalgat Chunye Wang, UCSC Guang Ling, CUHK Andre Carvalho Claus Stadler, Uni Leipzig Guang Xiang, CMU Andrej Muhic, IJS Cristina Brandt, Stanford Günter Ladwig, KIT Andrej Rapoport Dan Liu, Google Haichuan Shang, Andrew Newell Danai Koutra, CMU Haiqin Yang, CUHK Anisio Lacerda, UFMG Daniel Gerber, Uni Leipzig Hamid Mahini Anthony Fader, U. of Washington Daniel Herzig, KIT Hao Xia Arijit Khan Daniel Lobato Hemant Purohit, Wright St Arun Iyer Danielle H. Lee Hernan Molina, UNLPAM Ashton Anderson, Stanford Darshan Santani Hong Cao Ashutosh Jadhav, Wright St David Carral Martínez Huiji Gao, ASU Asiful Islam, Google Dawei Yin, Lehigh Hung Hsuan Chen Asim Jamshid, Kaist Dayong Wang, NTU Hyojeong Kim Axel Cyrille Ngonga Ngomo, Dayu Yuan, PSU Hyoungshick Kim, UBC UniLeipzig Deepak Garg Hyuk Yoon Kwon Baichuan Li, CUHK Delip Rao In Joong Kim Balaji Palanisamy Denis Krompass Isaac Jones, ASU Bangyong Liang, NEC Dimitris Kontokostas Jaafar Ben Abdallah, Basheer Hawwash, Dimitris Kotsakos Jakub Šimko, STUBA Basil Ell, Uni Karslruhe Diogo Martins Jan Hidders, TU Delft Behzad Golshan, BU Donghee Choi Jan Rupnik, IJS Bernhard Amann, UCB Donghyeon Kim Janez Brank, IJS Bin Cao, Microsoft Endadul Hoque Javier Luis Canovas Izquierdo, Bin Chen Enpeng Yao, Microsoft INRIA Bin Li Enpeng Yao, Microsoft Javier Parapar, UDC Bing He, JHSPH Eren Manavoglu, Microsoft Jean Sébastien Légaré, UBC Binh Han, GATech Erjia Yan, Indiana Jennifer Sleeman, UMBC

Additional Reviewers (Continued) Manuel Salvadores Philip Langer, TUWien Jens Lehmann, Uni Leipzig Marco Montali, UniBZ Pinar Ozturk, Stevens Jens Witkowski Marco Ribeiro Prakhar Biyani, Jialei Wang Marián Šimko Pramod Anantharam, Wright St Jianhua Yin Martin Junghans, KIT Prashanth Mohan, UCB Jiao Tao Martin Scholz, Google Pritam Gundecha, ASU Jiliang Tang, ASU Martina Deplano, UniTO Pushkar Tripathi, GATech Jim McCusker, RPI Martina Seidl, TUWien Qi Liu Jin Young Kim, Microsoft Massimiliano Ciaramita, Google Qing Ke, Indiana Jing Du, UCSC Matthew Lentz, UMD Qiqi Yan Jingyu Zhou, SJTU Mauro Cherubini Quan Wang Jinha Kim, Postech Max Tritschler, Fraunhofer Quan Yuan, NTU Jinoh Oh Max Tritschler, Fraunhofer Rahul Potharaju Joan Isaac Biel Maximilian Nickel Raju Balakrishnan Joerg Unbehauen, Uni Leipzig Michael Prentice Rong Hua Li Johanna Voelker, Uni Mannheim Michal Barla, STUBA Sangho Lee, Postech Johannes Wettinger, Uni Stuttgart Michal Kompan, STUBA Sangrak Lim Jonathan Mortensen, Stanford Michelle Cheatham Sara Tonelli, FBK Jordi Atserias, Yahoo! Miguel Martínez Prieto, UVA Schahram Proxy Dustdar Proxy, Jose Fernando Rodrigues Junior, Minh Nhut Nguyen Seongsoon Kim USP Miriam Fernandez, Open U. Shaghayegh Sahebi, Pittsburgh Josep Maria Brunetti Fernández, Mitja Trampus, IJS Shankar Kalyanaraman, Josiane Xavier Parreira, DERI Mohammad Ali Abbasi, ASU Shenglin Zhao, CUHK Juan Lang, Google Mohammadhossein Bateni, Shengqi Yang, UCSB Juan Pablo Carrascal Nan Li, UCSB Shulong Tan Julia Hoxha, KIT Nandish Jayaram, Smitashree Choudhury, Open U. Julian Mcauley, Naoki Yoshinaga, Song Feng, Stonybrook Junjie Yao Natali Ruchansky, BU Sotirios Chatzis, CUT Junkyu Lee Nathan Hodas Stamatina Thomaidou Jürgen Bock, FZI Negar Hariri Stefano Soi karla Caballero, UCSC Negin Golrezaei, USC Stefano Tranquillini, UniTN Karolina Vukojevic, Uni Stuttgart Nicola Fanizzi, UniBA Sumit Bhatia, PSU Karthik Subbian, UMN Nikolaos Laoutaris, Sungchul Kim Keon Jang, Microsoft Ning Chen Sungjae Hwang, KAIST Kisung Lee, GATech Ning Yan Tadej Štajner, IJS Kyle Williams, Nitish Aggarwal, DERI Taehoon Kim, Postech Lei Shi, Baidu Norman Heino, Uni Leipzig Theodoros Lappas, BU Liang Dai, UCSC Nuno Lopes, DERI Timofey Ermilov, Uni Leipzig Liangjie Hong, Lehigh Oliver Ferschke, TU Darmstadt Todd Plantenga, Sandia Liaoruo Wang Paola Velardi, UniROMA Tom Chao Zhou, CUHK Lili Jiang Pavan Kapanipathi, Wright St Tom Schimoler Lu Chen Pável Calado, UTL Tomáš Kramár, STUBA Luciano Barbosa, ATT Pavel Dmitriev, Cornell Tommaso Soru, Uni Leipzig Madian Khabsa, Pengcheng Wu Trinh Minh Tri Do, Man Zhu Peter Cogan, Lucent Umang Bhaskar,

Additional Reviewers (Continued) Xiaohui Sun, Microsoft Yuan Fang Li, Monash Umar Syed Xiaozhong Liu, Yung Yi, KAIST Vana Kalogeraki, Xin Cao, NTU Yury Puzis, Charmtech Veli Bicer, IBM Xin Zhao Yuting Zhao Vikas Ganjigunte Ashok, Stonybrook Xin Zhao Yuzhe Tang, GATech Wei Feng, Tsinghua Xueyan Jiang Zhen Liu Wei Shen Yi Huang, Siemens Zhenglu Yang Wei Zhang Yi Mao, Microsoft Zhenning Shangguan, Wenbo Wang Ying Wang, Google Zhicheng Dou, Microsoft William Heavlin, Google Yinghui Wu Zhong Yuan Zhang William West, Lehigh Yong Ge Zhongmou Li Wladmir Brandao, UFMG Yongtao Ma Zhuo Feng, ASU Xiang Ren, Illinois Yu Wang, Emory Xiao Huang, Microsoft Yuan Ren, ABDN

Program Committee Practice and Experience Track Members Additional reviewers Luca Maria Aiello, Yahoo! Research Mikalai Tsytsarau, University of Trento Mohamed Aly, Yahoo! Research Andresta Setiawan, Korean University Denilson Barbosa, University of Alberta Ashis Saha, Korea University Stefano Ceri , DEI, Politecnico di Milano Bilal Lodhi, Korea University Weizhu Chen, Microsoft Davide Mottin, Trento University Yun Chi, NEC Laboratories America Eduardo Graells, Yahoo Ed H. Chi, Google, Inc. Hung-Yu Kao, National Cheng-Kung University Fred Douglis, EMC Hyuk-Yoon Kwon, Kyungpook National University Christos Doulkeridis , Athens University of Economics In-Joong Kim, Kyungpook National University and Business Jaehoon Choi, Korea University Sameh Elnikety, Microsoft Research Ja-Hwung Su, National Cheng-Kung University Ariel Fuxman, Microsoft Research Jim Jansen, Penn State University Hong Gao , Harbin Institute of Technology Jinho Lee, Korea University C. Lee Giles, Pennsylvania State University Jin-Woo Park, POSTECH Wook Shin Han, Kyungpook National University Jonatan Taminau, Vrije Universiteit Brussel Xiaofeng He, ECNU Kenny Zhu, Shanghai Jiaotong University Seungwon Hwang, POSTECH Krishna Gummadi, MPI Jaewoo Kang, Korea University Kun-Ta Chuang, National Cheng-Kung University David Konopnicki , IBM Lei Zou, Peking University Hongrae Lee, Google, Inc. Matteo Lissandrini, University of Trento Ping Luo, HP Labs China Mikalai Tsytsarau, University of Trento Amin Mantrach , Yahoo! Labs Minji Jeon, Korea University Francesco Saverio Nucci , Engineering Ingegneria Pasquale Andriani, Engineering Ingegneria Informatica Informatica S.p.A. SPA Beng Chin Ooi , National University of Singapore Steven Whang, Google Themis Palpanas, University of Trento Sujatha Das, Penn State University Uri Schonfeld , UCLA Vincenzo Croce, Università degli Studi di Palermo Rok Sosic, Computer Science Department, Stanford Wen Hua, Renmin University of China University Xing Niu, Shanghai Jiaotong University Fabian M. Suchanek, Max Planck Institute for Yanghua Xiao, Fudan University Informatics Yangqiu Song, HKUST Neel Sundaresan, eBay Research Labs Yuchen Zhang, UC Berkeley Vincent S. Tseng, National Cheng Kung University Zhen Wang, SYSU Stratis Viglas, University of Edinburgh, School of Zhen Yu, ECNU Informatics Zihan Zhou, Penn State University Yanghua Xiao, Fudan university Jun Yan, Microsoft Research Asia Xiaochun Yang, North Eastern University Kenny Zhu, Shanghai Jiao Tong University

Posters Track Members Dirk Ahlers, UNITEC Eric Kansa, UC Berkeley, School of Information Rosa Alarcon, Pontificia Universidad Católica de Chile Murat Kantarcioglu, University of Texas at Dallas Mark Baker, Zepheira LLC Puneet Kishor, University of Wisconsin Madison Jöran Beel, Docear Agnes Koschmider, Karlsruher Institute of Technology Walter Binder, University of Lugano Markus Lanthaler, Graz University of Technology Joshua Blumenstock, University of California at Berkeley Ray Larson, University of California, Berkeley Marco Brambilla, Politecnico di Milano Arnaud Le Hors, IBM Rommel Carvalho, George Mason University Dave Lester, University of California, Berkeley Stefano A. Cerri, LIRMM: University of Montpellier and Fernanda Lima, UnB (Universidade de Brasilia) CNRS Olga Liskin, Leibniz Universität Hannover Philippe Cudré Mauroux, U. of Fribourg Yiming Liu, UC Berkeley Richard Cyganiak, Digital Enterprise Research Institute, Jose Macedo, Federal University of Ceara NUI Galway Simon Mayer, ETH Zurich Florian Daniel, University of Trento, Italy Lionel Medini, LIRIS lab., Université de Lyon / CNRS Cornelia Davis, EMC Wagner Meira Jr., UFMG Peter Dolog, Department of Computer Science, Aalborg Cesare Pautasso, University of Lugano University Vivien Petras, HU Berlin Nick Doty, UC Berkeley, School of Information Ross Purves, University of Zürich – Irchel Flavius Frasincar, Erasmus University Rotterdam André Santanchè, Universidade de Campinas Fred Freitas, CIn UFPE Felix Sasaki, FH Potsdam / W3C German Austrian Office Tim Furche, Oxford University Arno Scharl, MODUL University Vienna, Department of Martin Gaedke, Chemnitz University of Technology New Media Technology Fabien Gandon, INRIA Patrick Schmitz, University of California Berkeley Béla Gipp, UC Berkeley Johannes Schöning, Hasselt University Luiz Goncalves, Universidade Federal do Rio Grande do Ryan Shaw Norte Maria Augusta Silveira Netto Nunes, DCOMP UFS Joe Gregorio, Google Stefan Tai, KIT Giancarlo Guizzardi, Ontology and Conceptual Modeling Giovanni Tummarello, DERI, National University of Research Group (NEMO)/Federal University of Espirito Ireland galway Santo (UFES) Herbert Van De Sompel, Los Alamos National Laboratory, Michael Hausenblas, Digital Enterprise Research Institute Research Library (DERI), NUI Galway Tomas Vitvar, University of Innsbruck Vivien Helmut, Norman Walsh, Sun Microsystems, Inc. Andreas Henrich, University of Bamberg Erik Wilde, EMC Corporation Laura Hollink, VU University Amsterdam Marco Winckler, ICS IRIT, Université Paul Sabtier Seiji Isotani, University of Sao Paulo Christian Zirpins, University of Karlsruhe (TH) Jorn W Janneck, Lund University Ivan Zuzak, School of Electrical Engineering and Christopher Jones, Cardiff University Computing, University of Zagreb

Demos Track Members Nitin Agarwal, UALR Shengbo Guo, Samsung Media Solution Center America Omar Alonso, University of California Mark Michael Hall, Sheffield University, George Anadiotis, University of Patras Harry Halpin, W3C Damires Souza, IFPB Dominique Hazael Massieux, W3C Mirella M.Moro, UFMG Cornelia Hedeler, University of Manchester Khalid Belhajjame, University of Manchester Steven Hoi, NTU Hao Ma, Microsoft Eero Hyvönen, Aalto University and University of Paolo Manghi, ISTI CNR Helsinki Carlos Eduardo Pires, UFCG Alejandro Jaimes, Yahoo! Research Ryan Shaw, University of North Carolina at Chapel Hill Kyomin Jung, KAIST Fabrizio Silvestri, INSTI CNR Zoubida Kedad, Université de Versailles Luciano Barbosa, AT&T Labs Research Juanzi Li, Tsinghua, Tsinghua University Fabricio Benevenuto, UFMG Hang Li, Huawei Noah’s Ark Lab Jim Blomo, UC Berkeley Guang Ling, CUHK Olivier Boissier, ENS Mines Saint Etienne Huan Liu, ASU Vinícius Cardoso Garcia, UFPE Tie Yan Liu, Microsoft Rodrigo Assad, USTO.RE Qin Lu, PolyU HK Irene Celino, CEFRIEL Dickson Lukose, MIMOS Berhad Jonathan Chan, King Mongkut’s University of Mário Antonio Meireles Teixeira, UFMA Technology Thonburi Hye Young Paik, University of New South Wales Yi Chang, Yahoo! Labs Maria Da Graça Pimentel, USP John Chuang, UC Berkeley Marco Antônio Pinheiro de Cristo, UFAM Eli Cortez, UFAM Lei Tang, WalmartLabs Frederico Araújo Durão, UFBA George Vouros, University of Piraeus Paolo Frasconi, UniFI Hui Xiong, Rutgers University Christophe Guéret, Data Archiving and Networked Albert Yeung, Huawei Noah’s Ark Lab Services (DANS) Lei Zhang, Microsoft