A Twin-Candidate Model for Learning-Based Anaphora Resolution Xiaofeng Yang author Jian Su author Chew Lim Tan author 2008 text journal article Computational Linguistics continuing periodical academic journal yang-etal-2008-twin 10.1162/coli.2008.07-004-R2-06-57 https://aclanthology.org/J08-3002/ 2008 34 3 327 356