Paper: Probabilistic Coordination Disambiguation in a Fully-Lexicalized Japanese Parser

ACL ID D07-1032
Title Probabilistic Coordination Disambiguation in a Fully-Lexicalized Japanese Parser
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2007
Authors

This paper describes a probabilistic model for coordination disambiguation integrated into syntactic and case structure analy- sis. Our model probabilistically assesses the parallelism of a candidate coordinate structure using syntactic/semantic similari- ties and cooccurrence statistics. We inte- grate these probabilities into the framework of fully-lexicalized parsing based on large- scale case frames. This approach simulta- neously addresses two tasks of coordination disambiguation: the detection of coordinate conjunctions and the scope disambiguation of coordinate structures. Experimental re- sultsonwebsentencesindicatetheeffective- ness of our approach.