PC Chairs Berthier Ribeiro-Neto, Google Brazil (America) Mounia Lalmas, Yahoo Labs (Europe) Alistair Moffat, Univ. of Melbourne (Asia & Oceania)
Short papers Chairs Ryen White, Microsoft Research (America) Maarten de Rijke, Univ. of Amsterdam (Europe) Ee-Peng Lim, Singapore Management Univ. (Asia & Oceania)
Workshops Chairs Fernando Diaz, Microsoft Research Diane Kelly, University of North Carolina
Demo Chairs Djoerd Hiemstra, University of Twente Mirella Moro, Universidade Federal de Minas Gerais
Doctoral Consortium Shane Culpepper, RMIT University Brian Davison, Lehigh University
Industry track Hang Li, Huawei Jaime Teevan, Microsoft Research
Sponsorship Chairs Sergei Vassilvitskii, Google Vanessa Murdock, Microsoft Research
Best Papers Chair Susan Dumais, Microsoft Research
Local Organization
Local Arrangments Chair Diego Arroyuelo, UTFSM & Yahoo Labs
Finance Chair Mauricio Marin, U de Santiago & Yahoo Labs
Registration Chair Rodrigo Scheihing, Yahoo Labs
Proceedings Chairs Nicolas Hidalgo, U de Santiago Roberto Gonzalez, U de Santiago
Social Events Chairs Erika Rosas, U de Santiago Carolina Bonacic, U de Santiago
