The semantics of resource sharing in lexical-functional grammar

Authors:
Andrew Kehler;Mary Dalrymple;John Lamping;Vijay Saraswat
Affiliations:
Harvard University, Cambridge, MA;Xerox PARC, Palo Alto, CA;Xerox PARC, Palo Alto, CA;Xerox PARC, Palo Alto, CA
Venue:
EACL '95 Proceedings of the seventh conference on European chapter of the Association for Computational Linguistics
Year:
1995

Citing 2
Cited 1

Linear logic

Theoretical Computer Science
LFG semantics via constraints

EACL '93 Proceedings of the sixth conference on European chapter of the Association for Computational Linguistics

A Resource Sensitive Interpretation of Lexical Functional Grammar

Journal of Logic, Language and Information

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Abstract

We argue that the resource sharing that is commonly manifest in semantic accounts of coordination is instead appropriately handled in terms of structure-sharing in LFG f-structures. We provide an extension to the previous account of LFG semantics (Dalrymple et al., 1993a) according to which dependencies between f-structures are viewed as resources; as a result a one-to-one correspondence between uses of f-structures and meanings is maintained. The resulting system is sufficiently restricted in cases where other approaches overgenerate; the very property of resource-sensitivity for which resource sharing appears to be problematic actually provides explanatory advantages over systems that more freely replicate resources during derivation.