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电子学报  2014 

基于试探折扣修正的证据组合方法

DOI: 10.3969/j.issn.0372-2112.2014.04.021, PP. 756-765

Keywords: 证据组合,冲突,试探折扣,不从属度

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Abstract:

Dempster-Shafer(D-S)证据理论在不确定性信息处理相关领域具有十分重要的地位,然而对冲突证据进行Dempster规则组合时,常常会出现反直观结果的问题.本文提出了一种新的对证据组合结果质量评价的量化标准,该标准由证据集可信度与组合结果聚焦度构成,并在该标准的基础上提出了一种对证据进行多次试探折扣的修正方法,每次试探折扣由证据的不从属度来构造,实现了证据集可信度与组合结果聚焦度的共同提高,获得最佳聚焦结果,并且还可以通过设置优化目标,灵活控制证据集可信度,获得高质量证据组合结果,以满足各种类型决策的需要.实验结果和相关分析表明,本文方法是合理有效的.

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