Learning Noun Phrase Anaphoricity to Improve Conference Resolution: Issues in Representation and Optimization Vincent Ng author 2004-07 text Proceedings of the 42nd Annual Meeting of the Association for Computational Linguistics (ACL-04) Barcelona, Spain conference publication ng-2004-learning 10.3115/1218955.1218975 https://aclanthology.org/P04-1020/ 2004-07 151 158