An NP-Cluster Based Approach to Coreference Resolution Xiaofeng Yang author Jian Su author GuoDong Zhou author Chew Lim Tan author 2004-aug 23–aug 27 text COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics COLING Geneva, Switzerland conference publication yang-etal-2004-np https://aclanthology.org/C04-1033/ 2004-aug 23–aug 27 226 232