Partial unification over records:

Abstract: "This paper introduces a domain of infinite trees for linguistic information. An infinite tree is an extension of a list of attribute-value pairs or a directed acyclic graph. A tree is supposed to be arity-free. The main results of this paper are that (1) a theory of partial unificati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Mukai, Kuniaki (VerfasserIn)
Format: Buch
Sprache:English
Veröffentlicht: Tokyo, Japan 1989
Schriftenreihe:Shin-Sedai-Konpyūta-Gijutsu-Kaihatsu-Kikō <Tōkyō>: ICOT technical report 454
Schlagworte:
Zusammenfassung:Abstract: "This paper introduces a domain of infinite trees for linguistic information. An infinite tree is an extension of a list of attribute-value pairs or a directed acyclic graph. A tree is supposed to be arity-free. The main results of this paper are that (1) a theory of partial unification is presented, (2) a solution of partial equality is defined over the domain, and (3) the equivalence between partial unifiability and solvability is established. Based on these results, a class of Horn clause programs is introduced and is given both a maximal semantics and an operational SLD semantics over the domain. Soundness and completeness are obtained with respect to the two semantics. Furthermore, as just a contraposition of it, soundness and completeness of the negation as failure rule are obtained."
Beschreibung:16 S.

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