Compilation of HPSG to TAG
Robert Kasper (Ohio State University), Bernd Kiefer (DFKI, Saarbruecken), Klaus Netter (DFKI Saarbruecken), and K. Vijay-Shanker, (University of Delaware)
TL;DR
This paper introduces an algorithm that converts HPSG into lexicalized feature-based TAG, enabling explicit representation of phrase structures and bridging two linguistic theories.
Contribution
It provides a formal compilation method with clear definitions for projecting structures from HPSG to TAG, enhancing theoretical integration.
Findings
Successful implementation of the compilation algorithm
Explicit mapping between HPSG and TAG structures
Improved representation of phrase structures
Abstract
We present an implemented compilation algorithm that translates HPSG into lexicalized feature-based TAG, relating concepts of the two theories. While HPSG has a more elaborated principle-based theory of possible phrase structures, TAG provides the means to represent lexicalized structures more explicitly. Our objectives are met by giving clear definitions that determine the projection of structures from the lexicon, and identify maximal projections, auxiliary trees and foot nodes.
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Taxonomy
TopicsNatural Language Processing Techniques · Rough Sets and Fuzzy Logic · Semantic Web and Ontologies