| 一种修正的DS合成法则及其近似算法 |
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| 引用本文： | 李永森,潘若愚,李传军.一种修正的DS合成法则及其近似算法[J].合肥工业大学学报(自然科学版),2009,32(5). |
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| 作者姓名： | 李永森 潘若愚 李传军 |
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| 作者单位： | 1. 安徽建筑工业学院,管理工程系,安徽,合肥,230601
2. 合肥工业大学,管理学院,安徽,合肥,230009 |
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| 基金项目： | 国家自然科学基金，安徽省自然科学基金，安徽省教育厅自然科学基金，安徽建筑工业学院硕博基金 |
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| 摘 要： | 文章对DS合成法则中焦元可信度重新分配及合成法则的复杂度问题进行了探索和研究,提出了焦元在融合时信质部分转移的思想,据此确定了焦元可信度转移度的概念,进而提出了一种修正的DS合成公式.为了解决DS合成法则计算复杂度存在的np难题,论文提出了一种新的近似算法,并进行了实例分析,结果显示了新方法具有一定的合理性.
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| 关 键 词： | 证据理论 合成法则 近似算法 |
A modified combination rule of DS theory and its approximation algorithm |
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| LI Yong-sen,PAN Ruo-yu,LI Chuan-jun.A modified combination rule of DS theory and its approximation algorithm[J].Journal of Hefei University of Technology(Natural Science),2009,32(5). |
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| Authors: | LI Yong-sen PAN Ruo-yu LI Chuan-jun |
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| Institution: | 1.Dept.of Management Engineering;Anhui Institute of Architecture & Industry;Hefei 2230601;China;2.School of Management;Hefei University of Technology;Hefei 230009;China |
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| Abstract: | This paper studies the belief transition degree of the focal element and the computational complexity of DS combination rules.An idea of partial belief transition instead of whole belief transition is put forward when two evidences are combined.The definition of transition degree of the focal element and a new combination rule are given.In order to overcome the difficulty of computational complexity,a new approximation algorithm is introduced and applied to an example,and the result shows that the new appro... |
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| Keywords: | theory of evidence combination rule approximation algorithm |
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