摘要
针对传统证据理论中高度冲突证据组合出现反直观结果的问题,提出了一种基于相容性距离的冲突证据合成方法。分析了证据理论存在的三个方面问题和各种改进方法的特点,通过欧式距离建立了证据距离和相容性测度矩阵,对接受度归一化后计算出相容因子来对冲突概率进行加权分配。数值算例验证了改进合成公式的有效性和合理性。
Aiming at the counterintuitive results generated in the combination of highly conflicting pieces of evidence in evidence theory,this paper proposed a new evidence combination approach based on consistence distance.It analyzed the three existent aspects of classic rule and characteristics of usual modified methods.Then it built evidense distance and consistence measure matrix via Euclidean distance.Finally it calculated the consistence coefficient to distribute the conflict probability after normalized acceptance.Numerical example illustrates the efficiency of the proposed approach.
出处
《计算机应用研究》
CSCD
北大核心
2012年第12期4527-4529,共3页
Application Research of Computers
关键词
证据理论
冲突概率
证据距离
相容因子
evidence theory
conflict probability
evidence distance
consistence coefficient
