Please use this identifier to cite or link to this item: doi:10.22028/D291-25061
Title: CTL : a description logic with expressive concrete domains
Author(s): Kamp, Gerd
Wache, Holger
Language: English
Year of Publication: 1996
OPUS Source: Kaiserslautern ; Saarbrücken : DFKI, 1996
SWD key words: Künstliche Intelligenz
DDC notations: 004 Computer science, internet
Publikation type: Report
Abstract: Compared with frame-based systems, description logics have the advantage of well-defined semantics and powerful inferences. In order to exploit these advantages in technical domains, the ability to use concrete domains is needed, e.g. systems of (in)equalities over (non)linear polynomials to handle physical laws. Existing systems can only cope with comparisons between attributes. We present an approach that considerably improves the expressiveness of the concrete domains. CTL (Configurable (or Constraint-based) Terminological Logic) is based on the ideas presented in [Baader, F. & Hanschke, P. 1991] and [Hanschke, P. 1993]. Concrete domains are realised through a well-defined interface to external algorithms. Constraint Logic Programming (CLP) systems allow us to easily realise a whole range of concrete domains, e.g. over sets of symbols and numbers. In particular, we are able to handle systems of arbitrary linear polynomials. They also enable us to automatically participate in recent and future improvements in the areas of CLP and computer algebra, e.g. systems capable of handling arbitrary non-linear polynomials.
Link to this record: urn:nbn:de:bsz:291-scidok-39039
Series name: Technical memo / Deutsches Forschungszentrum für Künstliche Intelligenz [ISSN 0946-0071]
Series volume: 96-01
Date of registration: 8-Jul-2011
Faculty: SE - Sonstige Einrichtungen
Department: SE - DFKI Deutsches Forschungszentrum für Künstliche Intelligenz
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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