They Exist! Introducing Plural Mentions to Coreference Resolution and Entity Linking Ethan Zhou author Jinho D Choi author 2018-08 text Proceedings of the 27th International Conference on Computational Linguistics Emily M Bender editor Leon Derczynski editor Pierre Isabelle editor Association for Computational Linguistics Santa Fe, New Mexico, USA conference publication zhou-choi-2018-exist https://aclanthology.org/C18-1003/ 2018-08 24 34