考虑可靠性与重要性的证据补偿协调融合方法

Compensation coordinated rule for fusing evidences by considering reliability and importance

兼具可靠性和重要性的证据融合问题目前仅局限于折扣处理阶段,尚未深入到融合规则的构建之中.为解决此问题,首先结合现有成果的解决思路分析其中存在的问题;然后构建能够对基本信度分配函数进行可靠性/重要性双重折扣处理且满足交换律的证据折扣方法,在此基础上,基于Dempster规则和Murphy规则从非补偿性与补偿性协调视角构建可以平衡可靠性和重要性的补偿协调融合规则;最后通过数值对比分析验证所提出方法的科学性.

The evidence fusion problem with both reliability and importance is limited to deal with it only in discount processing phase and not deeply into the fusion rule construction. In order to solve above problems, the existing problems in the current research are introduced by analyzing its solving thought firstly. Then an evidence discounting method that satisfies commutative law is established to discount the basic belief assignment function with both reliability and importance. A compensation coordinated rule for fusing evidences is constructed based on the Dempster rule and Murphy rule, which is used to balance the relationship between reliability and importance from the perspective of non-compensatory and compensatory coordination. The numerical comparison analysis shows the scientificity of the presented method.