Paper: Conundrums in Noun Phrase Coreference Resolution: Making Sense of the State-of-the-Art

ACL ID P09-1074
Title Conundrums in Noun Phrase Coreference Resolution: Making Sense of the State-of-the-Art
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2009
Authors

We aim to shed light on the state-of-the-art in NP coreference resolution by teasing apart the differ- ences in the MUC and ACE task definitions, the as- sumptions made in evaluation methodologies, and inherent differences in text corpora. First, we exam- ine three subproblems that play a role in coreference resolution: named entity recognition, anaphoric- ity determination, and coreference element detec- tion. We measure the impact of each subproblem on coreference resolution and confirm that certain as- sumptions regarding these subproblems in the eval- uation methodology can dramatically simplify the overall task. Second, we measure the performance of a state-of-the-art coreference resolver on several classes of anaphora and use these results to develop a quantitative measure for estima...