单向证据冲突度量方法

doi:10.11959/j.issn.1000-436x.2016143

摘要/Abstract

摘要：

针对传统证据冲突度量方法无法表达证据间支持程度差异的问题，提出一种带有方向性的证据冲突度量方法。该方法基于单向支持度间接计算证据间的冲突程度，单向支持度模型采用取小累加运算来表征两证据观点的一致程度，支持系数的引入保证了所建模型具有非对称性。实验结果表明所提方法不但能够有效区分证据间支持程度的差异，而且还能克服传统方法在特定情况下失效的问题。

关键词: Dempster-Shafer证据理论, 方向, 证据冲突, 冲突度量

Abstract:

Aiming at the problem that traditional evidence conflict measurement approaches can not express the differ-ence of mutual support degrees between evidences, a directional evidence conflict measurement approach was proposed. The conflict degree of evidences could be measured based on the new defined directional support degree, which imported the support coefficient to make the model dissymmetrical. Simulation results show that the proposed method can not only express the difference of mutual support degrees between evidences, but also solves the problem that traditional ap-proaches work poorly under special situation.

Key words: Dempster-Shafer evidence theory, direction, evidence conflict, conflict measure

王路,邢清华,毛艺帆. 单向证据冲突度量方法[J]. 通信学报, 2016, 37(7): 118-123.

Lu WANG,Qing-hua XING,Yi-fan MAO. Directional evidence conflict measurement approach[J]. Journal on Communications, 2016, 37(7): 118-123.

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参考文献 23

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方法	m₁,m₂	m₁,m₂,m₃	m₁,m₂,m₃,m₄
	m(θ₁)=0	m(θ₁)=0	m(θ₁)=0
Dempster	m(θ₂)=0.857 1	m(θ₂)=0.631 6	m(θ₂)=0.328 8
	m(θ₃)=0.142 9	m(θ₃)=0.368 4	m(θ₃)=0.671 2
	m(θ₁)=0.154 3	m(θ₁)=0.650 0	m(θ₁)=0.930 5
文献[20]	m(θ₂)=0.746 9	m(θ₂)=0.254 7	m(θ₂)=0.027 4
	m(θ₃)=0.098 8	m(θ₃)=0.085 8	m(θ₃)=0.033 9
	—	m(θ₁θ₃)=0.009 5	m(θ₁θ₃)=0.008 2
	m(θ₁)=0.154 3	m(θ₁)=0.778 9	m(θ₁)=0.955 0
本文方法	m(θ₂)=0.746 9	m(θ₂)=0.119 2	m(θ₂)=0.007 2
	m(θ₃)=0.098 8	m(θ₃)=0.091 2	m(θ₃)=0.028 8
	—	m(θ₁θ₃)=0.010 7	m(θ₁θ₃)=0.009