基于证据可信度的D-S证据理论合成规则

Combination Rule of D-S Evidence Theory Based on Evidence’s Credibility

Dempster合成规则是一种经典D-S理论的合成规则,但在参与合成的证据间具有较大的不一致性或冲突时,则不能使用或得出明显不合理的结果,引起错误决策。为了解决冲突证据的合成问题,提出了一种基于证据可信度的合成规则。通过算例仿真,该规则可以有效解决两个或两个以上的证据冲突问题,而且计算简单,计算量小。

Dempster combination rule, which is a classical combination rule of D -S theory, involves counterintuitive behaviors and causes the wrong decision when the evidences larger inconsistent or highly conflict with each other. In order to solve the conflict evidence combination problem, this paper proposes a combination rule based on evidence ’s credibility. Simulation shows this rule can effectively solve the two or more evidence conflict problem and simple calculation, small amount of calculation.