Yayoi Sponsors the 40th Annual Conference of the Japanese Society for Artificial Intelligence (JSAI2026) as Gold Sponsor

Yayoi Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director, President and CEO: Kenichiro Muto; hereinafter "Yayoi") is pleased to announce that it will sponsor the 40th Annual Conference of the Japanese Society for Artificial Intelligence (JSAI2026) as a gold sponsor, to be held June 8 (Mon) to June 12 (Fri), 2026. During the conference, Yayoi will have a permanent company booth, host a luncheon seminar, deliver research presentations by its R&D team, and recruit interns for the class of 2028.

Overview of the 40th Annual Conference of the Japanese Society for Artificial Intelligence (JSAI2026)

The Annual Conference of the Japanese Society for Artificial Intelligence is one of the largest AI academic events in Japan, organized by the Japanese Society for Artificial Intelligence, attracting numerous researchers and developers from Japan and abroad. In recent years, participation from industry has increased, making it an important venue linking academic research and practical application.

Date: June 8 (Mon) – June 12 (Fri), 2026 Venue: G-Messe Gunma + Online URL: https://pub.confit.atlas.jp/ja/event/jsai2026

Background of Sponsorship

Yayoi's mission is "Vitalize small and medium enterprises to create a positive cycle in Japan." The company develops, sells, and supports the "Yayoi Series" of software that supports back-office operations. Noticing the usefulness of the economic and accounting data accumulated through product use, Yayoi established an R&D team in 2023 to conduct research and development for utilizing that data. The decision to sponsor this conference was made to contribute to the AI research community and to further develop technologies that support SMEs.

Yayoi aims to leverage accumulated data combined with AI and other technologies to provide forward-looking value and illuminate the path for SMEs. It continues to support Japanese small businesses and contribute to the vitality of Japan's economy as a whole.

Initiatives

As a gold sponsor, Yayoi will implement the following initiatives during the conference:

＜Company Booth Exhibition＞ A permanent booth throughout the conference. Yayoi's R&D team will introduce AI research, including suppression of hallucinations in generative AI, application of RAG (Retrieval-Augmented Generation) in the accounting domain, and implementation examples. Information on R&D and recruitment will also be provided. Exhibition period: June 8 (Mon), 2026, 13:00 – June 12 (Fri), 15:00 Venue: Exhibition Hall A/B, Booth E-29

＜Luncheon Seminar＞ Yayoi will host a luncheon seminar during the lunch break, introducing AI applications in practical areas such as tax filing and joint research with universities. Date and time: June 10 (Wed), 2026, 12:50 – 13:40 Venue: K Hall (Medium Conference Room 201A)

＜Research Presentations＞ The Yayoi R&D team will give two presentations: 1. Design of Multi-turn Chat for Inappropriate or Insufficient Answers in Question Answering Date and time: June 9 (Tue), 2026, 14:30 – 14:45 Venue: H Hall (Medium Conference Room 202B) Session number: [2H4-OS-2a-05] Presenters: Shohei Iida, Yuchao Lin, Daishin Kawakami, Rie Shishido (Yayoi Co., Ltd.) URL: https://pub.confit.atlas.jp/en/event/jsai2026/presentation/2H4-OS-2a-05 2. Generation of Counterfactual Explanation Samples Considering the Accounting Domain Date and time: June 9 (Tue), 2026, 14:45 – 15:00 Venue: H Hall (Medium Conference Room 202B) Session number: [2H4-OS-2a-06] Presenters: Yoshihisa Furusawa, Rie Shishido (Yayoi Co., Ltd.) URL: https://pub.confit.atlas.jp/en/event/jsai2026/presentation/2H4-OS-2a-06

＜Internship Recruitment for Class of 2028＞ At the venue, Yayoi will recruit interns for its AI and Data Strategy Division for the class of 2028. Details will be provided at the company booth and luncheon seminar for students interested in AI and data analysis.

【About Yayoi Co., Ltd.】 Yayoi's mission is "Vitalize small and medium enterprises to create a positive cycle in Japan." It develops, sells, and supports the "Yayoi Series" of back-office software. The Yayoi Series has over 4 million registered users. Leveraging its network with customers, vast accumulated data, industry-largest customer service center, and partner relationships, combined with AI and other technologies, Yayoi supports SMEs in achieving their desired state. Representative: Representative Director, President and CEO: Kenichiro Muto Founded: 1978 Employees: 801 (as of September 2025) Business: Development, sales, and support of business software and related services Headquarters: 4-14-1 Sotokanda, Chiyoda-ku, Tokyo, Akihabara UDX 21F URL: https://www.yayoi-kk.co.jp