At the IEEE International Conference on Big Data 2025, held in Macau from December 8 (Mon.) to December 11 (Thu.), 2025, presentations were given by Mr. Ke Yu and second-year master’s students Mr. Kenta Yamamoto, Mr. Jun Sashihara, and Ms. Yuka Haruki.

Title: LLM-based Multi-Agent System for Simulating Strategic and Goal-Oriented Data Marketplaces

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

Title: Contextual Graph Embeddings: Accounting for Data Characteristics in Heterogeneous Data Integration

Authors: Yuka Haruki, Shigeru Ishikura, Kazuya Demachi, Teruaki Hayashi

Title: SHAP Distance: An Explainability-Aware Metric for Evaluating the Semantic Fidelity of Synthetic Tabular Data

Authors: Ke Yu, Shigeru Ishikura, Yukari Usukura, Yuki Shigoku, Teruaki Hayashi

Title: Designing Reputation Systems for Manufacturing Data Trading Markets: A Multi-Agent Evaluation with Q-Learning and IRL-Estimated Utilities

Authors: Kenta Yamamoto, Teruaki Hayashi