Get Your Vitamin C! Robust Fact Verification with Contrastive Evidence Tal Schuster author Adam Fisch author Regina Barzilay 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 schuster-etal-2021-get 10.18653/v1/2021.naacl-main.52 https://aclanthology.org/2021.naacl-main.52/ 2021-06 624 643