Winnowing Knowledge for Multi-choice Question Answering Yeqiu Li author Bowei Zou author Zhifeng Li author Ai Ti Aw author Yu Hong author Qiaoming Zhu author 2021-11 text Findings of the Association for Computational Linguistics: EMNLP 2021 Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Punta Cana, Dominican Republic conference publication li-etal-2021-winnowing-knowledge 10.18653/v1/2021.findings-emnlp.100 https://aclanthology.org/2021.findings-emnlp.100/ 2021-11 1157 1165