Paper: Coordination Structure Analysis using Dual Decomposition

ACL ID E12-1044
Title Coordination Structure Analysis using Dual Decomposition
Venue Annual Meeting of The European Chapter of The Association of Computational Linguistics
Session Main Conference
Year 2012

Coordination disambiguation remains a dif- ficult sub-problem in parsing despite the frequency and importance of coordination structures. We propose a method for disam- biguating coordination structures. In this method, dual decomposition is used as a framework to take advantage of both HPSG parsing and coordinate structure analysis with alignment-based local features. We evaluate the performance of the proposed method on the Genia corpus and the Wall Street Journal portion of the Penn Tree- bank. Results show it increases the per- centage of sentences in which coordination structures are detected correctly, compared with each of the two algorithms alone.