On December 1 (Mon.)–3 (Wed.), 2025, at Keio University, M2 students Mr. Sashihara and Mr. Yamamoto, M1 student Mr. Cheng, the research collaborators Dr. Shimizu and Mr. Belleguie gave oral presentations at the JSAI Joint Workshops 2025 (SIGAIs 2025).

---

Title: Design and Evaluation of an LLM Multi-Agent System Considering Goal Orientation and Market Trends in Data Markets

Authors: Jun Sashihara, Yukihisa Fujita, Kota Nakamura, Masahiro Kuwahara, Teruaki Hayashi

Session: SIG-CSS

---

Title: Simulation of a Data Trading Market via Reinforcement Learning and Inverse Reinforcement Learning Utility Estimation: Building and Evaluating a Reputation System

Authors: Kenta Yamamoto, Teruaki Hayashi

Session: SIG-DOCMAS

---

Title: Learning Dataset Similarity via Multi-View Fusion Based on Metadata and User Behavior

Authors: Haoyang Cheng, Teruaki Hayashi

Session: SIG-AM

---

Title: Drivers of Data Utilization on Co-creation Platforms: An Analysis of User Behavior on Kaggle

Authors: Takumi Shimizu (Keio University), Jun Sashihara, Yuka Haruki, Teruaki Hayashi (The University of Tokyo)

Session: SIG-DC

---

Title: Metadata-Driven Semantic Integration of Multi-Source Data with a Graph-Augmented LLM Agent Framework for Supply Chain Risk Management

Authors:Loys Belleguie (Quollio Technologies), Teruaki Hayashi (The University of Tokyo), Takahiro Sanada (Quollio Technologies)

Session: SIG-DC