Subjective Evidence Fusion Decision Method of Double-layer Multiple Sources

In order to solve the hierarchical fused decision problem of remarkable hierarchical structure and ordered decision implementation that independent and interrelated relationships co-exist in subjective evidences given by decision makers, the fusion mechanism is proposed combined with characteristics of hierarchical decision making to wipe out the influence of supervisors' subjective evidence being repeatedly synthesized and the fusion rule adapted to only two interrelated evidences is expanded for more interrelated evidences according to the rule of de-synthesizing. After that, decision making steps for double-layer subjective fusion decision with multiple sources are constructed by the suggested integration rule for fusing interrelated evidences and the traditional Dempster combination rule following sequences of "up to down" and "inner to outer", in which hierarchical weights are reflected. A decision problem is resolved by three methods, and the data comparison analysis shows the proposed method is scientific and efficient finally.