FO(ID) as an extension of DL with rules

Presented at: 6th Annual European Semantic Web Conference (ESWC2009)

by Joost Vennekens, Marc Denecker

There are many interesting Knowledge Representation questions surrounding rule languages for the Semantic Web. The most basic one is of course: which kind of rules should be used and how do they integrate with existing Description Logics? Similar questions have already been adressed in the field of Logic Programming, where one particular answer has been provided by the language of FO(ID). FO(ID) is an extension of classical first-order logic with a rule-based representation for inductive defintions. By offering a general integration of first-order logic and Logic Programs, it also induces a particular way of extending Description Logics with rules. The goal of this paper is to investigate this integration and discover whether there are interesting extensions of DL with rules that can be arrived at by imposing appropriate restrictions on the highly expressive FO(ID).

Keywords: Knowledge representation, Logic programming, Rule languages, Formal Languages, Inference, Logic, Rule of Inference, Semantic Web

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