Convolutional neural networks for chemical-disease relation extraction are improved with character-based word embeddings Dat Quoc Nguyen author Karin Verspoor author 2018-07 text Proceedings of the BioNLP 2018 workshop Dina Demner-Fushman editor Kevin Bretonnel Cohen editor Sophia Ananiadou editor Junichi Tsujii editor Association for Computational Linguistics Melbourne, Australia conference publication nguyen-verspoor-2018-convolutional 10.18653/v1/W18-2314 https://aclanthology.org/W18-2314/ 2018-07 129 136