Paper: The Same-Head Heuristic for Coreference

ACL ID P10-2007
Title The Same-Head Heuristic for Coreference
Venue Annual Meeting of the Association of Computational Linguistics
Session Short Paper
Year 2010

We investigate coreference relationships between NPs with the same head noun. It is relatively common in unsupervised work to assume that such pairs are coreferent– but this is not always true, es- pecially if realistic mention detection is used. We describe the distribution of non- coreferent same-head pairs in news text, and present an unsupervised generative model which learns not to link some same- head NPs using syntactic features, improv- ing precision.