Paper: The Effect of Higher-Order Dependency Features in Discriminative Phrase-Structure Parsing

ACL ID P13-2108
Title The Effect of Higher-Order Dependency Features in Discriminative Phrase-Structure Parsing
Venue Annual Meeting of the Association of Computational Linguistics
Session Short Paper
Year 2013
Authors

Higher-order dependency features are known to improve dependency parser ac- curacy. We investigate the incorporation of such features into a cube decoding phrase-structure parser. We find consid- erable gains in accuracy on the range of standard metrics. What is especially in- teresting is that we find strong, statisti- cally significant gains on dependency re- covery on out-of-domain tests (Brown vs. WSJ). This suggests that higher-order de- pendency features are not simply over- fitting the training material.