A Computational Representation for Generalised Phrase-Structure Grammars  

Oleh:

Phillips, John D.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Linguistics and Philosophy=> ada di SpringerLink 1997(vol.1) - Mutakhir; JSTOR vol. 15 no. 3 (Jun. 1992), page 255-287.
Fulltext: 25001473.pdf (3.8MB)

Isi artikel

Some modifications are suggested to recent (1985) generalised phrase-struc ture grammar which make the formalism more suitable to computational use, and at the same time provide a clear and elegant redefinition for parts of the formalism which are standardly complex and ill-defined. It is shown how the feature-instantiation principles can be represented as explicit rules in a format similar to metarules, and how a grammar of four parts, immediate-dominance rules, linear-precedence rules, metarules, and these new propagation rules, can be used to produce the ordinary GPSG analyses of English. Methods of computational implementation are discussed, in particular it is suggested that the parts of the grammar are most conveniently interpreted as instructions as to how to produce a set of context-free phrase-structure rules which can be used with a simple left-comer parser.

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