Paper: HPSG Parsing with Shallow Dependency Constraints

ACL ID P07-1079
Title HPSG Parsing with Shallow Dependency Constraints
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2007

We present a novel framework that com- bines strengths from surface syntactic pars- ing and deep syntactic parsing to increase deep parsing accuracy, specifically by com- bining dependency and HPSG parsing. We show that by using surface dependencies to constrain the application of wide-coverage HPSG rules, we can benefit from a num- ber of parsing techniques designed for high- accuracy dependency parsing, while actu- ally performing deep syntactic analysis. Our framework results in a 1.4% absolute im- provement over a state-of-the-art approach for wide coverage HPSG parsing.