Syntactic labelled tableaux for Łukasiewicz fuzzy ALC

Agnieszka Kułacka, Dirk Pattinson, Lutz Schröder

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    7 Citations (Scopus)

    Abstract

    Fuzzy description logics (DLs) serve as a tool to handle vagueness in real-world knowledge. There is particular interest in logics implementing Łukasiewicz semantics, which has a number of favourable properties. Current decision procedures for Łukasiewicz fuzzy DLs work by reduction to exponentially large mixed integer programming problems. Here, we present a decision method that stays closer to logical syntax, a labelled tableau algorithm for Łukasiewicz Fuzzy ALC that calls only on (pure) linear programming, and this only to decide atomic clashes. The algorithm realizes the best known complexity bound, NEXPTIME. Our language features a novel style of fuzzy ABoxes that work with comparisons of truth degrees rather than explicit numerical bounds.

    Original languageEnglish
    Title of host publicationIJCAI 2013 - Proceedings of the 23rd International Joint Conference on Artificial Intelligence
    Pages962-968
    Number of pages7
    Publication statusPublished - 2013
    Event23rd International Joint Conference on Artificial Intelligence, IJCAI 2013 - Beijing, China
    Duration: 3 Aug 20139 Aug 2013

    Publication series

    NameIJCAI International Joint Conference on Artificial Intelligence
    ISSN (Print)1045-0823

    Conference

    Conference23rd International Joint Conference on Artificial Intelligence, IJCAI 2013
    Country/TerritoryChina
    CityBeijing
    Period3/08/139/08/13

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