| 变精度意义下的优势约简 |
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| 引用本文： | 王阿岩,王秀秀,王长忠.变精度意义下的优势约简[J].渤海大学学报(自然科学版),2014(4):320-324. |
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| 作者姓名： | 王阿岩 王秀秀 王长忠 |
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| 作者单位： | 渤海大学 数理学院,辽宁 锦州,121013 |
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| 基金项目： | 国家自然科学基金项目(No61070242)；辽宁省教育厅项目(No2009A034)． |
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| 摘 要： | 属性约简是粗糙集理论与方法的研究热点,是一种重要的降维方法.将经典变精度粗糙集模型与优势关系粗糙集模型相结合,定义了优势关系下的β近似集合和β分布协调集的概念,并给出了基于β分布协调集的可辨识属性矩阵定义,提出优势关系下的变精度属性约简方法.通过实例分析,说明了该方法的可行性.
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| 关 键 词： | 优势关系 变精度 协调集 属性约简 |
Dominance reduction on variable accuracy |
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| WANG A-yan,WANG Xiu-xiu,WANG Chang-zhong.Dominance reduction on variable accuracy[J].Journal of Bohai University:Natural Science Edition,2014(4):320-324. |
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| Authors: | WANG A-yan WANG Xiu-xiu WANG Chang-zhong |
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| Institution: | WANG A -yan, WANG Xiu - xiu, WANG Chang - zhong (College of Mathematics and Physics, Bohai University, Jinzhou 121013, China) |
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| Abstract: | Attribute reduction has been become a research focus in rough set theory. It is a vevy important approach to dimension reduction. This paper proposes a new attribute reduction model,dominance reduction with variable accuracy. The concepts of β approximation sets and β distributed consistent sets are first defined,bastdon dominance relations. Ther,the discernible attribute matrix is constructed by β distributed consistent sets.Finally,an example is illustated to explain the validity of the proposed method. |
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| Keywords: | dominance relation variable accuracy coordination set |
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