Beat the AI: Investigating Adversarial Human Annotation for Reading Comprehension Max Bartolo author Alastair Roberts author Johannes Welbl author Sebastian Riedel author Pontus Stenetorp author 2020 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal bartolo-etal-2020-beat 10.1162/tacl_a_00338 https://aclanthology.org/2020.tacl-1.43/ 2020 8 662 678