Open-Domain Dialogue Quality Evaluation: Deriving Nugget-level Scores from Turn-level Scores. - Rikiya Takehi; Akihisa Watanabe; Tetsuya Sakai (SIGIR-AP, 2023)

LLM-Assisted Relevance Assessments: When Should We Ask LLMs for Help? - Rikiya Takehi; Ellen M. Voorhees; Tetsuya Sakai (CoRR, 2024)

A General Framework for Off-Policy Learning with Partially-Observed Reward. - Rikiya Takehi; Masahiro Asami; Kosuke Kawakami; Yuta Saito (ICLR, 2025)

LLM-Assisted Relevance Assessments: When Should We Ask LLMs for Help? - Rikiya Takehi; Ellen M. Voorhees; Tetsuya Sakai; Ian Soboroff (SIGIR, 2025)