R-Tuning: Instructing Large Language Models to Say ‘I Don’t Know’ Hanning Zhang author Shizhe Diao author Yong Lin author Yi Fung author Qing Lian author Xingyao Wang author Yangyi Chen author Heng Ji author Tong Zhang author 2024-06 text Proceedings of the 2024 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 1: Long Papers) Kevin Duh editor Helena Gomez editor Steven Bethard editor Association for Computational Linguistics Mexico City, Mexico conference publication zhang-etal-2024-r 10.18653/v1/2024.naacl-long.394 https://aclanthology.org/2024.naacl-long.394/ 2024-06 7113 7139