基于证据理论的规则融合方法及其应用

针对已有规则融合方法的不足以及将证据理论引入规则融合将面临的问题,提出了应用证据理论对多约简集决策进行融合的方法,论述了该方法的具体实现步骤,并对航空发动机故障样本进行了应用分析.结果表明:该方法规避了单约简集决策的牵强、各约简集之间识别率的不稳定以及单属性决策之间的高冲突等问题,为航空发动机的故障诊断提供了科学的理论决策依据.

The Method of Rule Fusion Based on Evidence Theory and Its Application

Considering the limitation of the existing methods and the problems to arise when evidence theory is introduced to rule fusion, a method of fusing the decisions of multi-reduction sets based on evidence theory is proposed, the concrete procedures of the method are described and the application analysis of the method is done on the aero-engine fault diagnosis samples. The result shows that by using the method the problems of reluctant decision of single reduction set, of the instability of identification-rate between all the reduction sets and of the high conflict of the single attribute decision are eluded. This provides a scientific decision foundation theoretically for aero-engine fault diagnosis. The dominance of the method is summarized in the conclusion.