| 基于可变精度的加权粗糙集模型在约简中的研究 |
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| 引用本文： | 何维,马廷淮.基于可变精度的加权粗糙集模型在约简中的研究[J].电子科技大学学报(社会科学版),2006(Z1). |
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| 作者姓名： | 何维 马廷淮 |
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| 作者单位： | 电子科技大学 成都610054(何维)，南京信息工程大学 南京210044(马廷淮) |
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| 基金项目： | 四川省重点项目(项目编号:01GG012-01)资助 |
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| 摘 要： | 首先对粗糙集的定义进行了描述,在可变精度的基础上提出了加权粗糙集模型。重新定义了近似空间内的一些概念,给出了加权粗糙集模型的约简概念,指出了加权系数的两种方法。并根据实验分析,得出加权粗糙集模型约简中分类错误增大,约简长度越短,约简所花时间越长等特性。
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| 关 键 词： | 可变精度 加权粗糙集 约简 |
Study on Weighting Rough Set Based on Variety Precision for Reduction |
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| HE Wei.Study on Weighting Rough Set Based on Variety Precision for Reduction[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2006(Z1). |
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| Authors: | HE Wei |
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| Institution: | HE Wei (Univ.of Elec.Sci.& Tech.of China Chengdu 610054 China)MA Ting-huai(Nanjing University of Information Science and Technology Nanjing 210044 China) |
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| Abstract: | In this paper,Rough Set was described,then base on Variety Precision Rough Set, Weighting Rough Set was defined.Some Approximate Space concepts were re-defined.The Reduction of Weighing Rough Set Model was stated,two methods for calculating weight were was given,too.The experiment proved the reduction characters of Rough Set:the shorter the reduction length is,the less the reduction time is. |
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| Keywords: | variety precision weighting rough set reduction |
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