The Operations Research Society of Japan (ORSJ), established on June 15, 1957, is a leading academic society dedicated to the advancement of operations research (OR) and its applications. The Society promotes both theoretical developments and practical implementations of OR methodologies in business, industry, and the public sector.

ORSJ provides a platform for researchers and practitioners to exchange ideas, disseminate research findings, and foster collaboration at both national and international levels.

Activities

The Society conducts a wide range of academic and professional activities, including the organization of conferences and research meetings, publication of academic journals, promotion of research, and collaboration with related societies in Japan and abroad.

Major academic events include:

• Biannual Research Conferences and Symposia
  (held twice a year; for information on upcoming conferences, see Conference Information (in Japanese).)
• Research Meetings organized by special interest groups

Publications

ORSJ publishes several periodicals covering both theoretical and applied aspects of operations research:

• Journal of the Operations Research Society of Japan (JORSJ) (in English) 
• Transactions of the Operations Research Society of Japan (TORSJ) (in Japanese)
• Communications of the Operations Research Society of Japan (monthly, in Japanese)

All articles in JORSJ and TORSJ are available online:

• JORSJ: https://www.jstage.jst.go.jp/browse/jorsj (in English)
• TORSJ: https://www.jstage.jst.go.jp/browse/torsj (in Japanese)

JORSJ publishes original research papers in English and follows a rigorous peer-review process. Submission guidelines are available at JORSJ Information (in English).

Organization

The Society is headquartered in Tokyo and operates regional chapters across Japan (Hokkaido, Tohoku, Chubu, Kansai, Chugoku-Shikoku, and Kyushu), each conducting local academic activities.

Officers and Council (May 2026 – April 2027)

• President: Akiko Yoshise 
• Vice Presidents: Takahiro Watanabe, Takashi Yonezawa, Naoto Oshiro 
• Council Members:
  Ryuhei Miyashiro, Natsuko Yano (General Affairs and Administration)
  Kyoko Yagi (International and Domestic Relations)
  Yasushi Narushima, Tazu Nomoto (Research and Promotion)
  Nobuyoshi Hirotsu, Tadashi Dohi (Publications)
  Takafumi Kobayashi (Treasury)
  Hiroshige Dan (Public Relations)
  Shoji Kasahara (Regional Management)
  Nobuo Yamashita, Tomohisa Yamashita (Conferences) 
• Auditors: Shinji Imahori, Kohei Harada

Membership

ORSJ welcomes both individual and corporate members from academia and industry.

Members benefit from early access to the Society’s bulletin, conferences, and a broad professional network in operations research.

For further information on membership categories and applications, please visit ORSJ Official Website (in Japanese).

International Relations

ORSJ actively collaborates with international organizations such as IFORS and APORS, contributing to the global development of operations research.

The Society promotes international exchange through academic collaboration, joint activities, and participation in international conferences.

Further Information

For more information about ORSJ, including publications, conferences, and membership, please visit ORSJ Official Website (in Japanese).