Member of Japanese Society for Artificial Intelligence (1995-present)
Member of Japanese Cognitive Science Society (1997-present)
Member of The Institute of Electronics, Information and Communication Engineers (1997-present), Senior Member(2015-)
Member of Information Processing Society of Japan (2000-present), Senior Member(2014-)
Member of Association for the Advancement of Artificial Intelligence (2003-present)
Steering Committee Member of SIG-ICS, Information Processing Society of Japan (2000-2004)
Session Chair of Forum on Information Technology (2002, 2006, 2008, 2009)
Program Committee Member of International Workshop on Active Mining (2002-2003)
Session Chair of National Convention of Information Processing Society of Japan (2003, 2004, 2008)
Editorial Board Member of IPSJ Journal (2003-2005), Associate Editor in Chief (2005-2006), Editor in Chief (2006-2007)
Organizing Committee Member of Japanese Society for Artificial Intelligence (2003-2007)
Session Chair of International Conference on Information and Knowledge Sharing (2003)
Editorial Board Member of IPSJ Journal(Special Issue) (2004-2005)
Secretary of SIG-FPAI, Japanese Society for Artificial Intelligence (2004-2006)
Member of Technical Group on AI, The Institute of Electronics, Information and Communication Engineers (2004-)
Program Committee Member of Joint Agent Workshops and Symposium (2005-)
Editorial Board Member of IPSJ Journal(Special Issue) (2005-2006)
Session Chair of National Convention of Japanese Society for Artificial Intelligence (2005, 2006, 2007, 2010, 2011, 2013)
Editorial Board Member of IPSJ Digital Courier (2005-2007)
Program Committee Member of K-Cap Workshop on Integrating Ontologies (2005)
Session Chair of Joint Agent Workshops and Symposium (2005, 2006, 2007)
Program Committee Member of International Conference on Data Warehousing and Knowledge Discovery (2006-2010)
Editorial Board Member of IPSJ Magazine (2006-2008), Associate Editor in Chief (2008-2009), Editor in Chief (2009-2010)
Program Committee Member of National Convention of Information Processing Society of Japan (2006-2007)
Program Committee Member of International Journal on Semantic Web and Information Systems (Special Issue) (2006-2007)
Program Committee Member of International Workshop on Risk Mining (2006)
Program Committee Member of International Workshop on Ontology Matching (2006-), Organizing Committee Member(2016), Session Chair(2016)
Editorial Board Member of Journal of the Japanese Society for Artificial Intelligence (2006-2010), Senior Editor (2010-2016), Associate Editor in Chief (2016-2018), Editor in Chief (2018-2020)
Editorial Board Member of IPSJ Journal(Special Issue) (2006-2007)
Program Committee Member of Annual Conference of the Japanese Society for Artificial Intelligence (2006-2008)
Editorial Board Member of IPSJ Journal(Special Issue) (2007-2008)
Program Committee Member of International Semantic Web Conference (2007, 2019-), Evaluations and Experiments Program Committee Member(2012-2013), Local Committee Member(2016)
Session Chair of International Conference on Computer and Information Science (2008)
Program Committee Member of Asian Semantic Web Conference (2008-2009)
Organizer of Data Integration through Semantic Technology Workshop (2008)
Session Chair of International Conference on Practical Aspects of Knowledge Management (2008)
Program Committee Member of International Journal on Semantic Web and Information Systems (Special Issue) (2006-2007)
Session Chair of International Conference on Practical Aspects of Knowledge Management (2008)
Session Advisor of Annual Conference of the Japanese Society for Artificial Intelligence (2009, 2011, 2013, 2018)
Editorial Board Member of Journal of the Japanese Society for Artificial Intelligence(Special Issue) (2009-2010)
Secretary of SIG-ICS, Information Processing Society of Japan (2010-2014)
Session Chair of International Conference on Industrial, Engineering and Other Applications of Applied Intelligent Systems (2010)
Review Committee Member for IEICE Transactions on Information and Systems (2010-)
Program Committee Member of International Joint Conference on Artificial Intelligence (2011, 2021-), Senior Program Committee Member(2017)
Associate Editor, IEICE Transactions on Information and Systems (2011-2015)
Program Committee Member of Workshop on Computation: Theory and Practice (2011-2014)
Editorial Board Member of IPSJ Journal(Special Issue) (2011-2012)
Tutorial Program Committee Member of World Wide Web Conference (2011-2012), Program Committee Member (2023-)
Committee Member of Forum on Information Technology (2011-2012)
Member of JSAI Field Innovation Award Selection Committee (2012), Chair of Selection Committee (2022)
Secretary of SIG-SWO, Japanese Society for Artificial Intelligence (2012-2014), Chair (2014-2016), Advisor(2016-)
Poster and Demo Chair of Joint International Semantic Technology Conference (2012), Program Committee Member (2014-2019), Program Committee Chair (2018)
Session Chair of Joint International Semantic Technology Conference (2012)
Program Committee Member of International Workshop on Web Information and Data Management (2012)
Editorial Board Member of New Generation Computing (2013-2016), Aria Editor (2016-), Associate Editor in Chief (2023-)
Editorial Board Member of Transactions of JSAI(Special Issue) (2013-2014, 2014-2015)
Program Committee Member of International Workshop on Linked Data and Ontology in Practice (2013-2014)
Program Committee Member of International Conference on Future Data and Security Engineering (2014-2017)
Session Organizer of Annual Conference of the Japanese Society for Artificial Intelligence (2014-2017, 2023)
Session Chair of International Conference on Industrial, Engineering & Other Applications of Applied Intelligent Systems (2014)
Program Committee Member of International Conference on Knowledge and Systems Engineering (2015-2016)
Program Committee Member of International Conference on Advanced Computing and Applications (2015-2016)
Secretary of SIG-AGI, Japanese Society for Artificial Intelligence (2015-2017, 2019-2022), Chair (2017-2019, 2022-)
Program Committee Member of International Conference on Agents (2016-2019)
Organizing Committee Member of Linked Startup Workshop (2016)
Editorial Board Member of IEICE Transactions on Information and Systems(Special Issue) (2016-2017)
Program Committee Member of International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (2017-2018, 2020-)
Organizing Committee Member of IEEE International Conference on Semantic Computing (2017-)
Organizing Committee Member of IEEE International Conference on Artificial Intelligence for Industries (2018)
Organizing Committee Member of IEEE International Conference on Artificial Intelligence and Knowledge Engineering (2018-)
Program Committee Member of Extended Semantic Web Conference (2019-)
Editor in Chief of Information (Special Issue) (2021-2022, 2023-)
Program Committee Member of International Conference on Knowledge Graphs (2021-)
Chair of Annual Conference of the Japanese Society for Artificial Intelligence (2021)