Conference Organization
| Year | Venue | Role |
|---|---|---|
| 2019 | IEEE BigComp 2019 | Web Chair |
| 2018-2019 | NTCIR-14 | Task Organizer |
| 2018 | ACM IUI 2018 | Proceedings Co-Chairs |
| 2017 | ACM SIGIR 2017 | Demo Co-Chairs |
| 2017 | ASSIA 2017 | Co-Organizers |
| 2016-2017 | NTCIR-13 | Task Organizer |
| 2014-2015 | NTCIR-12 | Task Organizer |
| 2015 | iDB Workshop 2015 | Excursion Vice-Chair |
| 2013 | KJDB 2013 | Registration & Liaison Chair |
| 2013 | SocInfo 2013 | Local Arrangement Co-Chairs |
| 2015 | iDB Workshop 2013 | International Relationship Chair |
| 2013-2014 | NTCIR-11 | Task Organizer |
| 2012-2013 | NTCIR-10 | Task Organizer |
Program Committee Member
Editorial Board
| Year | Publication | Role |
|---|---|---|
| 2019-Present | Information Retrieval Journal | Editorial Board Member |
| 2017-Present | Information Processing Society of Japan | Editorial Board Member |
| 2017 | IEICE Journal: Special Section on Data Engineering and Information Management | Editor |
| 2016-Present | IPSJ Transaction on Databases | Editorial Board Member |
| 2016 | The Japanese Society for Artificial Intelligence Special Issue on Web Intelligence and Interaction 2017 | Editorial Board Member |
| 2014 | The Japanese Society for Artificial Intelligence Special Issue on New Directions of Web Intelligence and Intereaction | Editorial Board Member |
Membership
| Year | Organization | Role |
|---|---|---|
| 2017-Present | Tokyo ACM SIGIR Chapter | Member |
| 2013-Present | ACM SIGIR | Member |