Investigating Prior Knowledge for Challenging Chinese Machine Reading Comprehension Kai Sun author Dian Yu author Dong Yu author Claire Cardie author 2020 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal sun-etal-2020-investigating 10.1162/tacl_a_00305 https://aclanthology.org/2020.tacl-1.10/ 2020 8 141 155