Senior Researcher / Industrial AI Research
I am a senior industrial AI researcher working on knowledge- and constraint-aware AI systems. My recent work includes diagnosing LLM behavior via information spectrum analysis, efficient knowledge-augmented recommendation with lightweight LLMs, retrieval-augmented generation, multimodal document understanding, and physics-constrained generative modeling.
Research Themes
Humans communicate and share knowledge through speech, writing, figures, tables, spaces, media, and artificial intelligence. My research aims to understand the structures behind communication and knowledge transfer, and to develop practical intelligent information processing technologies.
I analyze large language model behavior using information-theoretic approaches, including information spectrum theory, and study how side information, external knowledge, and constraints affect generation behavior.
I study knowledge-augmented recommendation with lightweight LLMs, retrieval-augmented generation, and information access methods that incorporate user knowledge, venue knowledge, and structured knowledge.
I work on understanding visually rich documents that include text, tables, figures, and layouts, including text-table relatedness, joint triple extraction, and table cell entity annotation.
I study path loss map estimation, radio propagation modeling, wave simulation verification, and physics-constrained generative modeling using vision transformers and diffusion models.
My earlier research includes room acoustic analysis, robust speech recognition under noise and reverberation, speech enhancement, spoken dialogue systems, and quantitative analysis of classical Japanese literature.
Selected Recent Publications
A short list of recent representative work. Please see the full publication list or CV for all papers.
Profile
Denso IT Laboratory, Senior Researcher
Denso IT Laboratory, Researcher
Denso IT Laboratory, Associate Researcher
Mitsubishi Electric Corporation, Information Technology R&D Center, Researcher
Mitsubishi Electric Research Laboratories, Visitor
Education
Ph.D. in Engineering, Tokyo Institute of Technology
B.A. in Japanese Language and Literature, Nihon University
M.Env., Graduate School of Frontier Sciences, The University of Tokyo
B.Eng., Department of Architecture, The University of Tokyo
Awards
Service