| 集值决策信息系统属性约简与规则提取的矩阵算法 |
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| 引用本文： | 桂现才. 集值决策信息系统属性约简与规则提取的矩阵算法[J]. 湛江师范学院学报, 2009, 30(6): 86-91 |
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| 作者姓名： | 桂现才 |
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| 作者单位： | 湛江师范学院,数学与计算科学学院,广东,湛江,524048 |
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| 摘 要： | 在集值决策信息系统中引入了优势矩阵和决策矩阵的概念,进一步建立了集值决策信息系统广义决策约简与规则提取的矩阵算法.算法利用矩阵间的比较提取所有决策规则,并同时得到所有广义决策约简.通过实例分析验证了该算法的有效性,说明了其优点是对数据复杂的决策信息系统也可相对容易地求出所有的广义决策约简与决策规则.
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| 关 键 词： | 粗糙集 集值决策信息系统 广义决策约简 规则提取 优势矩阵 决策矩阵 |
Matrix Computation for Attribute Reduction and Rule Extraction in Set-valued Decision Information System |
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| GUI Xian-cai. Matrix Computation for Attribute Reduction and Rule Extraction in Set-valued Decision Information System[J]. Journal of Zhanjiang Normal College, 2009, 30(6): 86-91 |
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| Authors: | GUI Xian-cai |
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| Affiliation: | GUI Xian-cai(School of Mathematics and Computational Science,Zhanjiang Normal College,Zhanjiang,Guangdong 524048,China) |
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| Abstract: | The dominance matrix and decision matrix are introduced in set valued decision information system.The matrix algorithm of generalized decision reduction and rule extraction are obtained.Rule extracting and attribute reduction acquiring from set-valued decision information system are realized by comparing dominance matrices with decision matrix.We employ an example to illustrate the validity of this method,and result shows the method is applicable to give all generalized decision reduction and decision rules. |
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| Keywords: | rough set set-valued decision information system generalized decision reduction rule extraction dominance matrix decision matrix |
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