Efficient Strategies for Hierarchical Text Classification: External Knowledge and Auxiliary Tasks Kervy Rivas Rojas author Gina Bustamante author Arturo Oncevay author Marco Antonio Sobrevilla Cabezudo author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics Dan Jurafsky editor Joyce Chai editor Natalie Schluter editor Joel Tetreault editor Association for Computational Linguistics Online conference publication rivas-rojas-etal-2020-efficient 10.18653/v1/2020.acl-main.205 https://aclanthology.org/2020.acl-main.205/ 2020-07 2252 2257