一种基于局部冲突分配的证据组合规则  

Evidence combination rule based on local conflict distribution strategy

作　　者：曹洁[1] 郭雷雷[1] 

机构地区：[1]兰州理工大学计算机与通信学院,兰州730050

出　　处：《计算机应用研究》2013年第7期2033-2035,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(61263031)

摘　　要：Dempster-Shafer证据理论广泛应用于信息融合中,但是在证据高冲突情况下基于经典D-S证据组合规则的融合结果存在问题。针对这一问题,提出了一种基于局部冲突分配的证据组合规则。首先基于Jousselme证据距离获得各个证据体的信任度和加权平均证据,然后由定义的焦元距求其每一个焦元的绝对距离,并以此获得焦元信任度。最后实验结果表明,所提算法提高了证据合成结果的可靠性和合理性。Dempster-Shafer（D-S） method has been used widely in all kinds of data fusion system,but it has difficulty in dealing with combining evidences with high degree of conflict.In order to solve problem,this paper proposed a new method based on local conflict distribution strategy.According to Jousselme’s distance,the credibility of each evidence and the weighted average evidence were obtained.Then every focal elements’ absolute distance was got,according to absolute distance the credibility of each focal element were obtained.Finally,the results of numerical examples show that the proposed method improves the reliability and rationality of the evidence combination results.

关 键 词：证据理论 组合规则 局部冲突 焦元信任度 绝对距离 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]