The Effect of Higher-Order Dependency Features in Discriminative Phrase-Structure Parsing
Year: 2013
Type: conference-paper
Abstract: Higher-order dependency features are known to improve dependency parser accuracy. We investigate the incorporation of such features into a cube decoding phrase-structure parser. We find considerable gains in accuracy on the range of standard metrics. What is especially interesting is that we find strong, statistically significant gains on dependency recovery on out-of-domain tests (Brown vs. WSJ). This suggests that higher-order dependency features are not simply over-fitting the training material.
Authors: Greg Coppola, Mark Steedman
Institution: University of Edinburgh
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
Funder: University of Edinburgh
OpenAlex ID: W2250645575
