Fighting the COVID-19 Infodemic with a Holistic BERT Ensemble Georgios Tziafas author Konstantinos Kogkalidis author Tommaso Caselli author 2021-06 text Proceedings of the Fourth Workshop on NLP for Internet Freedom: Censorship, Disinformation, and Propaganda Anna Feldman editor Giovanni Da San Martino editor Chris Leberknight editor Preslav Nakov editor Association for Computational Linguistics Online conference publication tziafas-etal-2021-fighting 10.18653/v1/2021.nlp4if-1.18 https://aclanthology.org/2021.nlp4if-1.18/ 2021-06 119 124