OWA aggregation of multi-criteria on the framework of Z-valuation

Abstract

The ordered weighted averaging (OWA) operator is a very useful tool in dealing with the decision-making of multi-dimensional information especially in multi-criteria decision-making. In this paper, we consider measure representation of the uncertain information as a trapezoid fuzzy number, and there is various types of uncertainty in the criteria satisfactions, a new method OWA aggregation of multi-criteria on the framework of Z-valuation is proposed. In our method, firstly, the framework of Z-valuation is built up for the multi-criteria decision problem. Then, OWA operator is used to calculate a final trapezoid fuzzy number to make decision. An illustrative example of the whole procedure is provided.