Abductive Logic Grammars

Henning Christiansen, Veronica Dahl

Publikation: Bidrag til tidsskriftKonferenceartikelForskningpeer review

Abstract

By extending logic grammars with constraint logic, we give them the ability to create knowledge bases that represent the meaning of an input string. Semantic information is thus defined through extra-grammatical means, and a sentence's meaning logically follows as a by-product of string rewriting. We formalize these ideas, and exemplify them both within and outside first-order logic, and for both fixed and dynamic knowledge bases. Within the latter variety, we consider the usual left-to-right derivations that are traditional in logic grammars, but also -- in a significant departure from the norm -- arbitrary (i.e., order-independent) derivations.
We show that rich and accurate knowledge extraction from text can be achieved through the use of this new formalism


OriginalsprogEngelsk
BogserieLecture Notes in Computer Science
Sider (fra-til)170-181
ISSN0302-9743
StatusUdgivet - 2009
BegivenhedLogic, Language, Information and Computation. 16th International Workshop, WoLLIC 2009 - Tokyo, Japan
Varighed: 21 jun. 200924 jun. 2009
Konferencens nummer: 10

Konference

KonferenceLogic, Language, Information and Computation. 16th International Workshop, WoLLIC 2009
Nummer10
LandJapan
ByTokyo
Periode21/06/200924/06/2009

Bibliografisk note

Volumne: 5514

Emneord

  • logiske grammatikker
  • abduktion

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