Istituto di Scienza e Tecnologie dell'Informazione     
Straccia U. A fuzzy description logic for the semantic Web. Elie Sanchez (ed.). New York: Elsevier, 2006.
In this paper we present a fuzzy version of SHOIN}(D), the corresponding Description Logic of the ontology description language OWL DL. We show that the representation and reasoning capabilities of fuzzy SHOIN}(D) go clearly beyond classical SHOIN}(D). Interesting features are: (i) concept constructors are based on t-norm, t-conorm, negation and implication; (ii) concrete domains are fuzzy sets; (iii) fuzzy modifiers are allowed; and (iv) entailment and subsumption relationships may hold to some degree in the unit interval [0,1].
Subject Fuzzy description logics
I.2.4 Knowledge Representation Formalisms and Methods.Representation

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