A Twin-Candidate Model of Coreference Resolution with Non-Anaphor Identification Capability Xiaofeng Yang author Jian Su author Chew Lim Tan author 2005 text Second International Joint Conference on Natural Language Processing: Full Papers conference publication yang-etal-2005-twin 10.1007/11562214_63 https://aclanthology.org/I05-1063/ 2005