The Semantics of Resource Sharing in Lexical-Functional Grammar

Details The Semantics of Resource Sharing in Lexical-Functional Grammar The Semantics of Resource Sharing in Lexical-Functional Grammar

1995-02-13

arxiv.org/abs/cmp-lg/9502015v1

Proceedings of EACL-95

Computer Science

Computation and Language

8 pages, to appear in EACL-95. Requires eaclap.sty, tree-dvips.sty, tree-dvips.pro, lingmacros.sty, dgmacros.tex, lfgmacros.te

Scientific paper

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., 1993b) 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.

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