Learning on Structured Documents for Conditional Question Answering Wang Zihan author Qian Hongjin author Dou Zhicheng author 2023-08 text eng Proceedings of the 22nd Chinese National Conference on Computational Linguistics Maosong Sun editor Bing Qin editor Xipeng Qiu editor Jing Jiang editor Xianpei Han editor Chinese Information Processing Society of China Harbin, China conference publication zihan-etal-2023-learning https://aclanthology.org/2023.ccl-1.51/ 2023-08 583 599