Negation and Speculation Identification in Chinese Language Bowei Zou author Qiaoming Zhu author Guodong Zhou author 2015-07 text Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 1: Long Papers) Chengqing Zong editor Michael Strube editor Association for Computational Linguistics Beijing, China conference publication zou-etal-2015-negation 10.3115/v1/P15-1064 https://aclanthology.org/P15-1064/ 2015-07 656 665