Which *BERT? A Survey Organizing Contextualized Encoders Patrick Xia author Shijie Wu author Benjamin Van Durme author 2020-11 text Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP) Bonnie Webber editor Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication xia-etal-2020-bert 10.18653/v1/2020.emnlp-main.608 https://aclanthology.org/2020.emnlp-main.608/ 2020-11 7516 7533