Paper: A Unification-Based Parser For Relational Grammar

ACL ID P93-1014
Title A Unification-Based Parser For Relational Grammar
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 1993

We present an implemented unification-based parser for relational grammars developed within the stratified feature grammar (SFG) frame- work, which generalizes Kasper-Rounds logic to handle relational grammar analyses. We first in- troduce the key aspects of SFG and a lexicalized, graph-based variant of the framework suitable for implementing relational grammars. We then de- scribe a head-driven chart parser for lexicalized SFG. The basic parsing operation is essentially ordinary feature-structure unification augmented with an operation of label unification to build the stratified features characteristic of SFG.