Evidence Combination Based on Tentative Discount of Evidences
Chen Yan-fe · Dianzi xuebao · 2014
Dempster-Shafer( D-S) evidence theory plays a significant role in the related fields of uncertainty information processing. The combination of conflicting evidence using Dempster's rule,however,often generates counterintuitive results. This paper presents a new quantitative standard which is constituted by the reliability of the evidence set and the convergence measure of the result can evaluate quality of the combination results,and proposes a novel method,which need do some tentative discount of evidences. Each tentative discount is constructed by the degree of not subordination. The reliability of the evidence set and the convergence measure of the result can increase together,so the optimal convergence result can be obtained. By setting different goals,credibility of evidence set can be flexible controlled,and the high-quality combination result can be obtained,so it can meet the needs of all various types of decisions. The experimental results and the related analysis indicate that this method is rational and effective.