| 一种新的证据复合折扣合成方法 |
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| 引用本文： | 张克芳,王万请,生拥宏,岳春生.一种新的证据复合折扣合成方法[J].信息工程大学学报,2014,15(2):219-225. |
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| 作者姓名： | 张克芳 王万请 生拥宏 岳春生 |
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| 作者单位： | 63963部队;信息工程大学 |
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| 摘 要： | D-S证据理论是一种重要的决策级信息融合方法,但传统的Dempster证据合成规则会导致一些与直觉相悖的结果.针对该问题,在经典的Shafer折扣方法基础上,提出了一种综合可靠性和重要性因素的复合折扣因子计算方法.该方法首先借助证据包含度合理地定义了证据可靠性度量;然后综合证据清晰度、证据一致性和证据积累程度等因素,建立了证据重要性模型;最后两者通过乘法算子共同构成复合折扣因子.实验结果表明,文章方法的证据处理过程与生物学研究中人的信息积累过程一致,能够解决证据合成中的悖论问题,合成证据可靠有效.
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| 关 键 词： | D-S理论 证据合成 合成悖论 复合折扣因子 证据重要性 |
New Method of Composited Discounted Evidence Combination |
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| ZHANG Ke-fang;WANG Wan-qing;SHENG Yong-hong;YUE Chun-sheng.New Method of Composited Discounted Evidence Combination[J].Journal of Information Engineering University,2014,15(2):219-225. |
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| Authors: | ZHANG Ke-fang;WANG Wan-qing;SHENG Yong-hong;YUE Chun-sheng |
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| Affiliation: | ZHANG Ke-fang;WANG Wan-qing;SHENG Yong-hong;YUE Chun-sheng;Unit 63963;Information Engineering University; |
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| Abstract: | D-S evidence theory is an important information fusion method in decision level, in which the Dempster＇s rule always leads to counterintuitive results when combining conflicting evidences. A novel composite factor considering reliability and significance of evidence is proposed for the classi- cal Sharer＇ s discounting method. The method first defines evidence reliability measure reasonably by drawing support from evidence inclusion; then establishes the importance model of evidence with consideration of evidence quality, evidence consistency, and evidence accumulation etc. ; and final- ly contributes the composite factor by multiplication operator. Experiments show that the evidence combination process of the proposed method is the same as personal information accumulation course of biological research achievement, and the combination rule is more effective than some existing ones. |
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| Keywords: | D S theory evidence combination combination paradox composite discounting factor evidence importance |
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