General Chairs
| Aldo Gangemi, National Research Council, Italy & Paris 13 University-CNRS, France | |
| Stefano Leonardi, Sapienza University of Rome, Italy | |
| Alessandro Panconesi, Sapienza University of Rome, Italy |
Local Organizing Committee
| W3C Track Chair |
Marie-Claire Forgue, W3C, France |
| Publicity and Social Media Chairs | Flavio Chierichetti, Sapienza University of Rome, Italy |
| Gabriella Pasi, University of Milano-Bicocca, Italy | |
| Daniele Quercia, Yahoo Labs, Barcelona, Spain | |
| Web Presence Chair | Aris Anagnostopoulos, Sapienza University of Rome, Italy |
| Press Chair |
Marco Magrini, Florence, Italy |
| Finance Chairs |
Stefano Leonardi, Sapienza University of Rome, Italy |
| Viviana Vitali, OIC-International Congress Organization, Florence, Italy | |
| Registration Chair |
Luca Becchetti, Sapienza University of Rome, Italy |
| Sponsorship Chairs |
Alessandro Panconesi, Sapienza University of Rome, Italy |
| Paola Velardi, Sapienza University of Rome, Italy | |
| Exhibition Chairs |
Aldo Gangemi, National Research Council, Italy & Paris 13 University-CNRS, France |
| Gioacchino La Vecchia, W3C, Italy | |
| Local Arrangements Chair |
Sandra Celoni, OIC-International Congress Organization, Florence, Italy |
| Event Mobile Applications Chair |
Emanuele Panizzi, Sapienza University of Rome, Italy |
| Marketing Chairs |
Carlotta Ferrari, Florence Conference Bureau, Florence, Italy |
| Viviana Vitali, OIC-International Congress Organization, Florence, Italy | |
| Graphics Chair |
Gerry Turano, Rome, Italy |
| Colocated Events Chairs |
Andrei Broder, Google Inc., USA |
| Ciro Cattuto, ISI Foundation, Turin, Italy | |
| Stefano Leonardi, Sapienza University of Rome, Italy | |
| Proceedings and Metadata Chairs | Eva Blomqvist, University of Linköping, Sweden |
| Paolo Boldi, University of Milano, Italy | |
| Valentina Presutti, National Research Council, Italy | |
| Li Ding, Memect LLC, USA | |
| Panel Chairs | Aris Anagnostopoulos, Sapienza University of Rome, Italy |
| Fabrizio Silvestri, Yahoo Labs, Barcelona, Spain | |
| Volunteers Chairs | Sebastien Forget, TD Bank, Canada |
| Nicola Tonellotto, National Research Council, Italy | |
| Student Travel Grant Chairs | Filippo Geraci, National Research Council, Italy |
| Marco Pellegrini, National Research Council, Italy |
Technical Program Committee
| Program Committee Chairs | Krishna Gummadi, Max Planck Institute for Software Systems (MPI-SWS), Germany |
| Chengxiang Zhai, University of Illinois at Urbana-Champaing, USA | |
| Area Chairs | BEHAVIORAL ANALYSIS AND PERSONALIZATION David Carmel, Yahoo Labs Haifa Ryen White, Microsoft Research Redmond |
| CROWDSOURCING SYSTEMS AND SOCIAL MEDIA Lada Adamic, Facebook Carlos Castillo, Qatar Computing Research Institute Nick Koudas, University of Toronto |
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| CONTENT ANALYSIS Bing Liu, University of Illinois, Chicago Heng Ji, Rensselaer Polytechnic Institute |
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| INTERNET ECONOMICS AND MONETIZATION Ramesh Johari, Stanford University Tie-Yan Liu, Microsoft Research Asia |
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| PERVASIVE WEB AND MOBILITY Stefan Saroiu, Microsoft Research Redmond |
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| SECURITY AND PRIVACY Wenke Lee, Georgia Institute of Technology Matthew Smith, University of Bonn |
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| SEMANTIC WEB Peter Mika, Yahoo Labs Barcelona Natasha Noy, Stanford University |
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| SOCIAL NETWORKS AND GRAPH ANALYSIS Alan Mislove, Northeastern University Evimaria Terzi, Boston University Sebastiano Vigna, Università degli Studi di Milano |
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| WEB INFRASTRUCTURE: DATACENTERS, CONTENT DELIVERY NETWORKS, AND CLOUD COMPUTING Rodrigo Rodrigues, Universidade Nova de Lisboa |
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| WEB MINING Brian Davison, Lehigh University Qiaozhu Mei, University of Michigan Andrew Tomkins, Google |
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| WEB SEARCH SYSTEMS AND APPLICATIONS Yi Chang, Yahoo Labs Sunnyvale Yoelle Maarek, Yahoo Labs Haifa Maarten de Rijke, University of Amsterdam |
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| Workshop Track Chairs | Daniel Schwabe, Pontifical Catholic University of Rio de Janeiro, Brazil |
| Athena Vakali, Aristotle University, Thessaloniki, Greece | |
| Tutorial Track Chairs |
Ricardo Baeza-Yates, Yahoo Labs, Sunnyvale, USA & Barcelona, Spain |
| Meeyoung Cha, KAIST, Republic of Korea | |
| Athena Vakali, Aristotle University of Thessaloniki, Greece | |
| Poster Track Chairs |
Flavio Chierichetti, Sapienza University of Rome, Italy |
| Niloy Ganguly, IIT Kharagpur, India | |
| Alessandra Sala, Bell Laboratories, Ireland | |
| Demo Track Chairs |
Wagner Meira Jr., Universidade Federal de Minas Gerais, Brazil |
| Nishanth Sastry, King’s College, London, U.K. | |
| Industry Track Chairs |
Evelyne Viegas, Microsoft Research, USA |
| Chris Welty, Google Research, USA | |
| Ph.D. Symposium |
Anirban Dasgupta, IIT Gandhinagar, India |
| Jay Chen, NYU Abu Dhabi, UAE | |
| Oana Gogam MPI-SWS, Germany |