基于预处理模式的D-S证据理论改进方法  

An Improved Method of D-S Evidence Theory Based on Pretreatment Mode

作　　者：佘二永[1] 王润生[2] 徐学文[3] 

机构地区：[1]北京大学信息管理系,北京100081 [2]国防科技大学ATR 国家重点实验室,长沙410073 [3]中国国防科技信息中心,北京100036

出　　处：《模式识别与人工智能》2007年第5期711-715,共5页Pattern Recognition and Artificial Intelligence

摘　　要：D-S 证据理论是决策融合的主要方法之一,但典型的 D-S 理论不大适应高冲突证据组合.本文提出一种基于预处理模式的方法,在利用 Dempster 组合规则进行证据组合之前,将冲突焦元的基本概率赋值部分转移到焦元并集,采用证据之间的冲突额度来确定证据组合顺序.由于该方法将冲突化解为不确定的知识表示,可以处理冲突证据的组合问题.Dempster-Shafer （D-S） theory of evidence is one of the main methods of decision fusion, but typical D-S theory is sensitive to high conflict evidences. A method based on the pretreatment mode is presented. The basic probability assignments of conflict focal elements are partly transferred to the union of focal elements before the Dempster combination rule is used. The combination order is determined based on the conflicted measurement. Therefore, D-S theory could deal with the cases with high conflict evidences since conflict information is translated into unknown knowledge representation.

关 键 词：决策融合 D-S证据理论 Dempster规则 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程]