Have Attention Heads in BERT Learned Constituency Grammar?

Have Attention Heads in BERT Learned Constituency Grammar? Ziyang Luo author 2021-04 text Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Student Research Workshop Ionut-Teodor Sorodoc editor Madhumita Sushil editor Ece Takmaz editor Eneko Agirre editor Association for Computational Linguistics Online conference publication luo-2021-attention 10.18653/v1/2021.eacl-srw.2 https://aclanthology.org/2021.eacl-srw.2/ 2021-04 8 15