Nested Named Entity Recognition as Latent Lexicalized Constituency Parsing Chao Lou author Songlin Yang author Kewei Tu author 2022-05 text Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Smaranda Muresan editor Preslav Nakov editor Aline Villavicencio editor Association for Computational Linguistics Dublin, Ireland conference publication lou-etal-2022-nested 10.18653/v1/2022.acl-long.428 https://aclanthology.org/2022.acl-long.428/ 2022-05 6183 6198