Aggregation operators for fuzzy ontologies

[Display omitted] •We integrate fuzzy ontologies and aggregation operators.•We define a fuzzy Description Logic supporting aggregation operators.•We give a reasoning algorithm for MILP representable aggregation operators.•The language Fuzzy OWL 2 can be used to represent our proposal. Fuzzy ontologi...

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Vydané v:Applied soft computing Ročník 13; číslo 9; s. 3816 - 3830
Hlavní autori: Bobillo, Fernando, Straccia, Umberto
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Elsevier B.V 01.09.2013
Predmet:
Aggregation operators
Fuzzy Description Logics
Fuzzy integrals
Fuzzy ontologies
Logic for the Semantic Web
Aggregation operators
Logic for the Semantic Web
Fuzzy Description Logics
Fuzzy ontologies
Fuzzy integrals
ISSN:1568-4946, 1872-9681
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Popis
Shrnutí:[Display omitted] •We integrate fuzzy ontologies and aggregation operators.•We define a fuzzy Description Logic supporting aggregation operators.•We give a reasoning algorithm for MILP representable aggregation operators.•The language Fuzzy OWL 2 can be used to represent our proposal. Fuzzy ontologies extend classical ontologies to allow the representation of imprecise and vague knowledge. Although a relatively important amount of work has been carried out in the field during the last years and they have been successfully used in several applications, several notions from fuzzy logic have not been considered yet in fuzzy ontologies. Among them are aggregation operators, mathematical functions used to fuse different pieces of information, which is a very common need. Some examples of aggregation operators are weighted sums, Ordered Weighting Averaging operators and fuzzy integrals. In this work, we integrate fuzzy ontologies and aggregation operators. As a theoretical formalism, we provide the syntax and semantics of a fuzzy Description Logic with fuzzy aggregation operators. We provide a reasoning algorithm for the family of operators that are representable using a Mixed Integer Linear Programming optimization problem. We also show how to encode some examples of aggregation operators using the language Fuzzy OWL 2.
ISSN:1568-4946
1872-9681
DOI:10.1016/j.asoc.2013.05.008