Abstract: In order to determine attribute weights in multiple attribute decision making,this paper analyzes the limitations of the present approaches to determining weights of attributes,and proposes an improved approach to determining weights of attributes in decision making based on grey incidence,then studies the properties of the improved method. The approach can fully mine the information from the subjective judgment of experience weight matrix given by decision makers. A public series of comparison of weights is extraded,a simple mathematic programming model is constructed,and the subjective information of weights given by decision makers and the objective information of the decision matrix are integrated. Finally,the analysis of an example demonstrates the simplicity and validity of the improved approach.

Key words: weight, attribute, multiple attributes decision making, mathematic programming model