| HU的属性约简方法与相对熵约简的等价性 |
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| 引用本文： | 廖毅强,桂现才. HU的属性约简方法与相对熵约简的等价性[J]. 现代计算机, 2008, 0(6) |
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| 作者姓名： | 廖毅强 桂现才 |
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| 作者单位： | [1]广东轻工职业技术学院,广州510300 [2]湛江师范学院数学与计算科学学院,湛江524048 |
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| 摘 要： | 出于不同的应用目的,许多学者提出了各种不同的属性约简概念.给出相对熵保持不变的条件,利用相对熵定义了决策表的相对熵约简,证明相对熵约简与HU的差别矩阵和差别函数的约简方法是等价的.
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| 关 键 词： | 属性约简 差别矩阵 相对熵 决策表 粗糙集 |
Research on Equivalence of the HU's Method and the Relative Entropy Reduction |
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| LIAO Yi-qiang,GUI Xian-cai. Research on Equivalence of the HU's Method and the Relative Entropy Reduction[J]. Modem Computer, 2008, 0(6) |
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| Authors: | LIAO Yi-qiang GUI Xian-cai |
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| Affiliation: | LIAO Yi-qiang1,GUI Xian-cai2 (1.Guangdong Industry Technical College,Guangzhou 510300,2.School of Mathematics , Computational Science,Zhanjiang Normal College,Zhanjiang 524048) |
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| Abstract: | For the sake of different applications,various definitions of attribute reduction have been proposed by different researchers.Gives the condition that keep relative entropy unchanged,and defines the relative entropy reduction of the decision tables through the relative entropy.Proves that the relative entropy reduction is equivalent to the HU's method of discernibility matrix and discernibility function. |
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| Keywords: | Attribute Reduction Discernibility Matrix Relative Entropy Decision Tables Rough Set |
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