Reasoning over Hierarchical Question Decomposition Tree for Explainable Question Answering Jiajie Zhang author Shulin Cao author Tingjian Zhang author Xin Lv author Juanzi Li author Lei Hou author Jiaxin Shi author Qi Tian author 2023-07 text Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication zhang-etal-2023-reasoning 10.18653/v1/2023.acl-long.814 https://aclanthology.org/2023.acl-long.814/ 2023-07 14556 14570