计算机科学 ›› 2020, Vol. 47 ›› Issue (11A): 591-592.doi: 10.11896/jsjkx.200500042

• 交叉&应用 • 上一篇    下一篇

基于全局冲突系数的证据权重确定及合成研究

许将军, 彭旭, 吕伟, 刘小涵   

  1. 中国民航飞行学院航空工程学院 四川 广汉 618307
  • 出版日期:2020-11-15 发布日期:2020-11-17
  • 通讯作者: 彭旭(15220005@qq.com.cn)
  • 作者简介:xjj78911@sina.com.cn

Determination of Evidence Weight Coefficient and D-S Combination Research Based on GlobalConflict Coefficient

XU Jiang-jun, PENG Xu, LYU Wei, LIU Xiao-han   

  1. Aviation Engineering Institute,Civil Aviation Flight University of China,Guanghan,Sichuan 618307,China
  • Online:2020-11-15 Published:2020-11-17
  • About author:XU Jiang-jun,born in 1978,master,associate professor.His main research interests include fault diagnosis and information fusion.
    PENG Xu,born in 1987,Ph.D,lecturer.His main research interests include multi-level converters and converter topologies.

摘要: 为对证据源进行合理修正,解决高冲突证据合成时存在的问题,提出了一种新的证据权重确定方法。首先利用证据之间的局部冲突和相似性求出各个证据的全局冲突系数;其次取全局冲突系数的反值作为证据的权重并利用该权重对原证据的概率进行重新分配;最后对修正后的证据进行合成。算例比较结果表明,该方法与其他方法相比有较强的优越性。

关键词: 局部冲突, 全局冲突, 权重系数, 相似系数

Abstract: To modify the evidence source reasonably and deal with the problem arising in using D-S combination rule for the combination of highly conflicting evidences,this paper proposes a new evidence weight determination method.Firstly,a global conflict coefficient of the evidence is calculated by local conflict and similarity between evidence.Secondly,the inverse value of the global conflict coefficient is taken as the evidence weight and the weight is used to reallocate the probability of the original evidence.Finally,the modified evidence is combined.The results show that the method is superior to other methods.

Key words: Global conflict, Local conflict, Similarity coefficient, Weight coefficient

中图分类号: 

  • TP10
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