GENERAL CHAIRS Noriko Kando, National Institute of Informatics
Tetsuya Sakai, Waseda University
Hideo Joho, University of Tsukuba
PROGRAM CHAIRS Hang Li, Huawei Noah’s Ark Lab
Arjen de Vries, Radboud University
Ryen White, Microsoft Cortana
SHORT PAPER CHAIRS Hui Fang, University of Delaware
Mounia Lalmas, Yahoo!
Yiqun Liu, Tsinghua University
DEMO CHAIRS Gareth Jones, Dublin City University
Takehiro Yamamoto, Kyoto University
BEST PAPERS CHAIR Douglas W. Oard, University of Maryland
SIRIP CHAIRS Sumio Fujita, Yahoo! JAPAN
Vanessa Murdock, Microsoft
PUBLICITY/SOCIAL CHAIRS Yukino Baba, Kyoto University
Harumi Murakami, Osaka City University
Falk Scholer, RMIT University
TUTORIALS CHAIRS Fernando Diaz, Spotify
Adam Jatowt, Kyoto University
DOCTORAL CONSORTIUM CHAIRS Makoto P. Kato, Kyoto University
Kira Radinsky, Technion
WORKSHOP CHAIRS Jaap Kamps, University of Amsterdam
Grace Hui Yang, Georgetown University
PROCEEDINGS CHAIRS Takuya Kida, Hokkaido University
Masaharu Yoshioka, Hokkaido University
SPONSORSHIP CHAIRS Tsuneaki Kato, The University of Tokyo
Paraic Sheridan, Dublin City University
40TH ANNIVERSARY AWARD CHAIR Diane Kelly, The University of Tennessee, Knoxville
TREASURERS Akiko Aizawa, National Institute of Informatics
Hiroaki Ohshima, University of Hyogo
LOCAL ARRANGEMENTS Yuka Egusa, National Institute for Educational Policy Research
Emi Ishita, Kyushu University
Masao Takaku, University of Tsukuba
STUDENT VOLUNTEERS CHAIR Atsushi Keyaki, Tokyo Institute of Technology