#Japan #Tokyo #LLM #Yayoi #NLP2026

Yayoi's Contribution to NLP2026

Yayoi Corporation, headquartered in Chiyoda, Tokyo, led by CEO Kenichiro Muto, is set to present research findings from its R&D team at the 32nd Annual Meeting of the Association for Natural Language Processing (NLP2026), scheduled from March 9 to March 13, 2026.

In recent times, large language models (LLMs) in generative AI have gained traction across various sectors for tasks such as operational efficiency and decision-making support. However, persistent issues like 'hallucination,' where LLMs generate inaccurate information, and the provision of excessive and irrelevant details in responses, continue to pose significant challenges. These concerns serve as pivotal barriers to the dependable use of AI services in practical settings.

Yayoi embraces the mission to empower small and medium-sized enterprises (SMEs), boosting Japan's economy through its software solutions known as the Yayoi series. In 2023, it established an R&D team aimed at harnessing economic and accounting data accumulated through its software, focusing on refining AI technologies. The research slated for presentation proposes an automated method for extracting and identifying inaccuracies or unnecessary context from the responses generated by LLMs. This approach is designed to not only mechanically scrutinize and correct LLM outputs but also to mitigate hallucination and irrelevant information, thereby enhancing trustworthiness and accuracy in AI services.

The findings from this research lay a foundation for more reliable AI technology incorporated into Yayoi's offerings, fostering an environment where customers can focus on their core business activities with confidence. The significance of accuracy and reliability alongside the convenience of AI technology is core to Yayoi's ongoing research and development.

In conjunction with the research presentation at NLP2026, Yayoi's R&D team will also actively participate in scholarship management and discussions, contributing to the advancement of cutting-edge technology within the natural language processing community.

By integrating vast data accumulated over the years with leading-edge technologies like AI, Yayoi aspires to illuminate the path for SMEs, preparing them for future prospects while continuously supporting Japan's small businesses and contributing to the overall vitality of the national economy.

NLP2026 Overview

• - Date: March 9 to March 13, 2026
• - Venue: Light Cube Utsunomiya
• - Hosted by: The Association for Natural Language Processing
• - Website: NLP2026 Official Site

Presentation Details

• - Date and Time: March 10, 2026, 15:10-16:40, Room B
• - Authors:

- Shohei Iida, Yayoi Corporation, AI & Data Strategy Department
- Tomokazu Hayashi, Yayoi Corporation, AI & Data Strategy Department
- Rie Shishido, Yayoi Corporation, AI & Data Strategy Department

• - Theme: Application of LLM for Detecting Inappropriateness and Inadequacies in QA Task Responses
• - Paper Link: Research Paper

Statement from Shohei Iida

As AI's application increasingly permeates various sectors of business and society, ensuring the accuracy of its outputs has become an urgent challenge. In our presentation titled 'Application of LLM for Detecting Inappropriateness and Inadequacies in QA Task Responses', we will introduce a system for evaluating LLM output quality targeting this issue. Additionally, I look forward to engaging as a reviewer and chair during the event, hoping to stimulate meaningful discourse with the attendees through our research presentation and organizational contributions.

About Yayoi Corporation

Yayoi Corporation is on a mission to 'create a positive cycle in Japan by empowering SMEs,' developing and supporting software solutions known as the Yayoi series. With over 3.5 million registered users, Yayoi continues to support its customers by leveraging its extensive customer network, vast data reserves, industry-leading customer service, and partnerships, integrating modern technologies like AI to assist SMEs in realizing their visions.

• - CEO: Kenichiro Muto
• - Founded: 1978
• - Employees: 937 (as of September 2024)
• - Business Scope: Development, sales, and support of business software and related services
• - Headquarters: 4-14-1 Sotokanda, Chiyoda-ku, Tokyo, Akihabara UDX 21F
• - Website: Yayoi Official Site