Fateme Kouchakinejad - Department of Pure Mathematics, Faculty of Mathematics and Computer Science Shahid Bahonar University of Kerman, Kerman, Iran
Alexandra Alexandra - Slovak University of Technology in Bratislava Slovakia, Faculty of Civil Engineering, Department of Mathematics and Descriptive Geometry, Radlinského ۱۱,۸۱۰ ۰۵ Bratislava

The definition of ordered weighted averaging (OWA) operators and their applications in decision making is reviewed. Also, some generalizations of this kind of aggregation functions are studied and then, the notion of 2-symmetric OWA operators is introduced. These generalizations are illustrated by some examples.

Aggregation function, fuzzy measure, generalizations of OWA operators, 2-symmetric OWA operators