Generalizing Dependency Features for Opinion Mining

We explore how features based on syntactic dependency relations can be utilized to improve performance on opinion mining. Using a transformation of dependency relation triples, we convert them into "composite back-off features" that generalize better than the regular lexicalized dependency relation features. Experiments comparing our approach with several other approaches that generalize dependency features or ngrams demonstrate the utility of composite back-off features.

• Type: Journal
• Year: 2009
• Where: ACL
• Authors: Mahesh Joshi, Carolyn Penstein Rosé
• Keywords: ACL 2009, Composite Back-off, Computational Linguistics, Dependency Relation, Syntactic Dependency Relations