Kazuaki Furumai

KDDI Research, Inc

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Natural Language Processing (1)Recommendation & Information Retrieval (1)

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Shuichiro Haruta (1)Kazunori Matsumoto (1)Daisuke Kamisaka (1)

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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

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Kazuaki Furumai

Publication activitypapers/week, last 8 weeks

Research focus

Frequent co-authors

Papers (1)