摘要
针对D-S证据组合规则和其他一些改进的组合规则存在的不足,提出了两种改进的证据合成规则。该规则在兼顾多路冲突性和一致性证据的基础上,引入了证据距离、证据源之间的一致性程度和证据源的可信度,对冲突性证据以证据源的可信度加权合成,对一致性证据采用反映聚焦程度的与运算。理论分析和数值实验表明改进后的规则对高冲突性证据和一致性证据都非常有效,特别对高冲突性证据,该规则能更快地收敛到合理的目标。
Two improved combination rules are presented to deal with consistent or inconsistent evidences obtained from multiple sources. With the introduction of evidence distances, the coherence between two evidence sources and the creditability of evidence, the improved rules reflect the intersection of focus elements and adapt AND-operation to combine consistent evidences, and allocate the conflicts to various focus elements according to the creditability of relevant evidences. The theoretical analysis and results of numerical examples prove that, the given rules are very rational and effective for both high conflicting and consistent evidences. Especially, the given rules can provide reasonable results with better convergence efficiency than other rules when evidence sources are higly conflicting.
出处
《数据采集与处理》
CSCD
北大核心
2006年第3期324-329,共6页
Journal of Data Acquisition and Processing
基金
江苏省科研基金(BK2003026)资助项目
关键词
证据理论
合成规则
冲突
一致性
可信度
evidence theory
combination rule
conflict
coherence
creditability
