Volume 12, Issue 2 pp. 153-166

The weighted OWA operator

Vicenç Torra

Corresponding Author

Vicenç Torra

Dpt. d'Enginyeria Informàtica, Escola Tècnica Superior d'Enginyeria (ETSE), Universitat Rovira i Virgili, Carretera de Salou, s/n, E-43006 Tarragona (Spain)

Dpt. d'Enginyeria Informàtica, Escola Tècnica Superior d'Enginyeria (ETSE), Universitat Rovira i Virgili, Carretera de Salou, s/n, E-43006 Tarragona (Spain).Search for more papers by this author

Abstract

One of the properties that the OWA operator satisfies is commutativity. This condition, that is not satisfied by the weighted mean, stands for equal reliability of all the information sources that supply the data. In this article we define a new combination function, the WOWA (Weighted OWA), that combines the advantages of the OWA operator and the ones of the weighted mean. We study some of its properties and show how it can be extended to deal with linguistic labels. © 1997 John Wiley & Sons, Inc.

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