Computer Science ›› 2020, Vol. 47 ›› Issue (11A): 591-592.doi: 10.11896/jsjkx.200500042

• Interdiscipline & Application • Previous Articles     Next Articles

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.

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

CLC Number: 

  • TP10
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