Extracting a Knowledge Base of Mechanisms from COVID-19 Papers Tom Hope author Aida Amini author David Wadden author Madeleine van Zuylen author Sravanthi Parasa author Eric Horvitz author Daniel Weld author Roy Schwartz author Hannaneh Hajishirzi author 2021-06 text Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Kristina Toutanova editor Anna Rumshisky editor Luke Zettlemoyer editor Dilek Hakkani-Tur editor Iz Beltagy editor Steven Bethard editor Ryan Cotterell editor Tanmoy Chakraborty editor Yichao Zhou editor Association for Computational Linguistics Online conference publication hope-etal-2021-extracting 10.18653/v1/2021.naacl-main.355 https://aclanthology.org/2021.naacl-main.355/ 2021-06 4489 4503