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Journal of Intelligent Information Systems

Erschienen in:

01.12.2009

Issues in the practical use of the OWA operators in fuzzy querying

verfasst von: Sławomir Zadrożny, Janusz Kacprzyk

Erschienen in: Journal of Intelligent Information Systems | Ausgabe 3/2009

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Abstract

Flexible querying of the relational databases is considered. The applicability of some non-standard, mainly linguistic quantifier driven aggregation, and via Yager’s ordered weighted averaging (OWA) operators in particular, is shown. Their handling is studied with a special emphasis on the selection and tuning of the OWA operator that is appropriate for the user needs. We start with an OWA operator and intend to tune it to increase its ORness, but keeping the changes as limited as possible, or to preserve consistency of the changes. These tasks are defined as optimization problems. The discussion is illustrated on the example of the authors’ FQUERY for Access system.

Vorheriger Artikel A fuzzy extension of the XPath query language

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Titel: Issues in the practical use of the OWA operators in fuzzy querying
verfasst von: Sławomir Zadrożny
Janusz Kacprzyk
Publikationsdatum: 01.12.2009
Verlag: Springer US
Erschienen in: Journal of Intelligent Information Systems / Ausgabe 3/2009
Print ISSN: 0925-9902
Elektronische ISSN: 1573-7675
DOI: https://doi.org/10.1007/s10844-008-0068-1

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