Multi-Task Learning for Chemical Named Entity Recognition with Chemical Compound Paraphrasing Taiki Watanabe author Akihiro Tamura author Takashi Ninomiya author Takuya Makino author Tomoya Iwakura author 2019-11 text Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP) Kentaro Inui editor Jing Jiang editor Vincent Ng editor Xiaojun Wan editor Association for Computational Linguistics Hong Kong, China conference publication watanabe-etal-2019-multi 10.18653/v1/D19-1648 https://aclanthology.org/D19-1648/ 2019-11 6244 6249