RLET: A Reinforcement Learning Based Approach for Explainable QA with Entailment Trees Tengxiao Liu author Qipeng Guo author Xiangkun Hu author Yue Zhang author Xipeng Qiu author Zheng Zhang author 2022-12 text Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing Yoav Goldberg editor Zornitsa Kozareva editor Yue Zhang editor Association for Computational Linguistics Abu Dhabi, United Arab Emirates conference publication liu-etal-2022-rlet 10.18653/v1/2022.emnlp-main.483 https://aclanthology.org/2022.emnlp-main.483/ 2022-12 7177 7189