Please use this identifier to cite or link to this item: doi:10.22028/D291-24854
Title: Extensions of concept languages for a mechanical engineering application
Author(s): Baader, Franz
Hanschke, Philipp
Language: English
Year of Publication: 1992
OPUS Source: Kaiserslautern ; Saarbrücken : DFKI, 1992
SWD key words: Künstliche Intelligenz
Terminologische Sprache
DDC notations: 004 Computer science, internet
Publikation type: Report
Abstract: We shall consider an application in mechanical engineering, and shall show that the adequate modeling of the terminology of this problem domain in a conventional concept language poses two main representation problems. The first requires access to concrete domains, such as real numbers, while the second asks for a construct which can be used to represent sequences of varying length. As shown in recent papers by the authors there exist extended concept languages--equipped with sound and complete reasoning algorithms--that satisfy the respective representation demands separately. The main result presented in this paper is that the combination of both extensions leads to undecidable terminological inference problems. In particular, the important subsumption problem is undecidable. It should be noted that the need for these extensions is not particular to the considered problem domain; similar representation demands are likely to occur in other non-toy applications.
Link to this record: urn:nbn:de:bsz:291-scidok-36079
Series name: Research report / Deutsches Forschungszentrum für Künstliche Intelligenz [ISSN 0946-008x]
Series volume: 92-36
Date of registration: 27-May-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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