D-S证据理论中冲突处理的新方法  

New approach for conflict process in D-S evidence theory

作　　者：汪永伟[1,2] 刘育楠[1,2] 杨英杰[1,2] 司成[1,2] 刘帅[1,2] 

机构地区：[1]信息工程大学,河南郑州450004 [2]河南省信息安全重点实验室,河南郑州450004

出　　处：《计算机工程与设计》2013年第12期4316-4320,共5页Computer Engineering and Design

基　　金：国家973重点基础研究发展计划基金项目(2011CB311801);国家863高技术研究发展计划基金项目(2012AA012704)

摘　　要：针对经典D-S证据理论在处理高度冲突的证据信息时会产生有悖常理结论的问题,提出了一种新的证据合成方法。通过加性策略计算冲突焦元的支持信度,把证据中冲突焦元的支持信度作为新的基本概率分配,通过两两依次合成的方法实现多证据的合成。实验结果表明,该合成方法能够有效解决零元悖论问题,且在合成的结果的准确性、区分能力和适应性等方面优于现有典型方法。Aiming at the problem of a counter intuitive conclusion generated when classical DS evidence theory handle the highly conflict evidence information, a novel combination rule of evidence is proposed. Firstly, the new method calculates the supporting confidence of conflict focus element using the adding strategies. Secondly, the supporting confidence is assigned to the conflict focus elements as the new basic probability assignment. Finally, evidence is combined using every two of the evidences to achieve multi-evidence combination. Case analysis and experiments show that new combination method can effectively solve the problem of zero paradox, and the accuracy, discrimination and adaptability of the new method are superior to the existing methods.

关 键 词：证据理论 组合规则 决策 信息融合 冲突 

分 类 号：TP391.3[自动化与计算机技术—计算机应用技术]