Improving negation detection with negation-focused pre-training Hung Thinh Truong author Timothy Baldwin author Trevor Cohn author Karin Verspoor author 2022-07 text Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Marine Carpuat editor Marie-Catherine de Marneffe editor Ivan Vladimir Meza Ruiz editor Association for Computational Linguistics Seattle, United States conference publication truong-etal-2022-improving 10.18653/v1/2022.naacl-main.309 https://aclanthology.org/2022.naacl-main.309/ 2022-07 4188 4193