Abstract:

Dempster-Shafer (DS) evidence theory can effectively deal with the dubious information and has been widely used in the field of information fusion. Because of the shortcomings of DS evidence theory in combining highly conflict evidences, a novel combination method and a quantitative evaluation index are proposed. The proposed method uses the weight of each proposition in the evidences, which is generated based on the compatibility ratios to modify the original evidences, and then the DS rule is applied to the evidence combination. The evaluation index is obtained by averaging the conflicts between the combination results and the evidences according to the weights of the orighinal evidences. Simulation experiments show that the results of the proposed method are more rational than other existing methods. Also the proposed evaluation rule is in accord with the subjective understanding and performs well.