Document Type : Research Paper


Department of Computer science and Software Engineering, Xi'an Jiaotong-Liverpool University, 111 Ren Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China


Aggregation operators (AOs) have been studied by many schol-
ars. As many AOs are proposed, there is still lacking approach to classify the
categories of AO, and to select the appropriate AO within the AO candidates.
In this research, each AO can be regarded as a cognitive style or individual
erence. A Cognitive Style and Aggregation Operator (CSAO) model is pro-
posed to analyze the mapping relationship between the aggregation operators
and the cognitive styles represented by the decision attitudes. Four algorithms
are proposed for CSAO: CSAO-1, CSAO-2 and two selection strategies on the
basis of CSAO-1 and CSAO-2. The numerical examples illustrate how the
choice of the aggregation operators on the basis of the decision attitudes can
be determined by the selection strategies of CSAO-1 and CSAO-2. The CSAO
model can be applied to decision making systems with the selection problems
of the appropriate aggregation operators with consideration of the cognitive
styles of the decision makers.


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