Open-Domain Question-Answering for COVID-19 and Other Emergent Domains Sharon Levy author Kevin Mo author Wenhan Xiong author William Yang Wang author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing: System Demonstrations Heike Adel editor Shuming Shi editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication levy-etal-2021-open 10.18653/v1/2021.emnlp-demo.30 https://aclanthology.org/2021.emnlp-demo.30/ 2021-11 259 266