Paper: A Comparison Of Alternative Parse Tree Paths For Labeling Semantic Roles

ACL ID P06-2104
Title A Comparison Of Alternative Parse Tree Paths For Labeling Semantic Roles
Venue Annual Meeting of the Association of Computational Linguistics
Session Poster Session
Year 2006
Authors

The integration of sophisticated infer- ence-based techniques into natural lan- guage processing applications first re- quires a reliable method of encoding the predicate-argument structure of the pro- positional content of text. Recent statisti- cal approaches to automated predicate- argument annotation have utilized parse tree paths as predictive features, which encode the path between a verb predicate and a node in the parse tree that governs its argument. In this paper, we explore a number of alternatives for how these parse tree paths are encoded, focusing on the difference between automatically generated constituency parses and de- pendency parses. After describing five al- ternatives for encoding parse tree paths, we investigate how well each can be aligned with the argument substri...