Kazunori Matsumoto

KDDI Research, Inc

Papers on Lattice

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Publication activitypapers/week, last 8 weeks

Research focus

Natural Language Processing (2)Recommendation & Information Retrieval (1)Scaling Laws & Emergent Abilities (1)

Frequent co-authors

Kazuaki Furumai (1)Shuichiro Haruta (1)Daisuke Kamisaka (1)Kazuo Yano (1)

Papers (2)

Jun 30, 2026

KDDI Research1w ago

CORTEX: Token-Level Hallucination Detection in RAG via Comparative Internal Representations

CORTEX reveals that token-level hallucinations can be detected with remarkable precision by leveraging the grounding effects of retrieved documents, leading to substantial improvements in RAG output reliability.

Kazuaki Furumai, Shuichiro Haruta, Kazunori Matsumoto +1

Natural Language Processing Recommendation & Information Retrieval

Feb 15, 2026

Feb 15, 2026·also KDDI Research

Algebraic Quantum Intelligence: A New Framework for Reproducible Machine Creativity

LLMs can break free from deterministic generation and unlock genuine creativity by embracing quantum-inspired noncommutative algebra to systematically expand their semantic space.

Kazuo Yano, Jonghyeok Lee, Tae Ishitomi +26

Natural Language Processing Scaling Laws & Emergent Abilities

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Kazunori Matsumoto

Publication activitypapers/week, last 8 weeks

Research focus

Frequent co-authors

Papers (2)