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对冲突证据使用Dempster-Shafer证据理论进行融合的前提是对冲突证据作出正确衡量,确定证据之间冲突的程度.在分析现有的冲突衡量方法基础上,提出一种基于新的证据冲突衡量的加权证据融合方法.该方法通过相似性测度来衡量证据间的冲突程度;然后确定各证据的可信度,再加权修正证据;最后用Dempster组合规则进行融合.算例表明,该方法能正确衡量证据冲突程度,有效地解决冲突证据的融合问题,提高收敛速度和精度.
The premise of conflict evidence using Dempster-Shafer evidence theory is to correctly measure conflict evidence and determine the degree of conflict between evidences.On the basis of analyzing the existing methods of conflict measurement, a new measure of evidence conflict is proposed This method uses the measure of similarity to measure the degree of conflict between evidences, and then determines the credibility of each evidence, and then weights to correct the evidences. Finally, it uses Dempster’s combination rule to fuse. The example shows that this method can correctly measure The level of evidence conflict, the effective solution to the conflict evidence of convergence, improve the speed and accuracy of convergence.