Paper: Preserving Semantic Dependencies In Synchronous Tree Adjoining Grammar

ACL ID P99-1012
Title Preserving Semantic Dependencies In Synchronous Tree Adjoining Grammar
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 1999
Authors

Rambow, Wier and Vijay-Shanker (Rainbow et al. , 1995) point out the differences between TAG derivation structures and semantic or predicate- argument dependencies, and Joshi and Vijay- Shanker (Joshi and Vijay-Shanker, 1999) de- scribe a monotonic compositional semantics based on attachment order that represents the desired dependencies of a derivation without un- derspecifying predicate-argument relationships at any stage. In this paper, we apply the Joshi and Vijay-Shanker conception of compositional semantics to the problem of preserving seman- tic dependencies in Synchronous TAG transla- tion (Shieber and Schabes, 1990; Abeill~ et al. , 1990). In particular, we describe an algorithm to obtain the semantic dependencies on a TAG parse forest and construct a target derivation forest with...