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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 1 of 1 1 Parsing with Logical Variables Finin,Timothy W.; Palmer,Martha Stone In: DTIC AND NTIS (1983) Abstract: Logic based programming systems have enjoyed an increasing popularity in applied AI work in the last few years. One of the contributions to Computational Linguistics made by the Logic Programming Paradigm has been the Definite Clause Grammar. In comparing DCG's with previous parsing mechanisms such as ATN's, certain clear advantages are seen. We feel that the most important of these advantages are due to the use of Logical Variables with Unification as the fundamental operation on them. To illustrate the power of the Logical Variable, we have implemented an experimental ATN system which treats ATN registers as Logical Variables and provides a unification operation over them. We would like to simultaneously encourage the use of the powerful mechanisms available in DCG's, and demonstrate that some of these techniques can be captured without reference to a resolution theorem prover. ; This article is from 'Proceedings of the Conference on Applied Natural Language Processing Held at Santa Monica, California on 1-3 February 1983,' AD-A129 824. Keyword: *Computational linguistics; *Computer logic; *Computer programming; *Logical variables; *Parsers; Artificial intelligence; ATN(Augmented Transition Networks); Augmentation; Component reports; Context free grammars; DCG(Definite Clause Grammar); Natural language; Networks; Paradigm; Phrase structure grammars; Programming languages; Symposia; Transformational grammars; Transitions; Variables URL: http://www.dtic.mil/docs/citations/ADP001168 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP001168 BASE Hide details

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