GEM: Generative Enhanced Model for adversarial attacks Piotr Niewinski author Maria Pszona author Maria Janicka author 2019-11 text Proceedings of the Second Workshop on Fact Extraction and VERification (FEVER) James Thorne editor Andreas Vlachos editor Oana Cocarascu editor Christos Christodoulopoulos editor Arpit Mittal editor Association for Computational Linguistics Hong Kong, China conference publication niewinski-etal-2019-gem 10.18653/v1/D19-6604 https://aclanthology.org/D19-6604/ 2019-11 20 26