| 改进的Skowron可辨识矩阵及其属性核求解方法 |
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| 引用本文： | 张振琳,黄明.改进的Skowron可辨识矩阵及其属性核求解方法[J].大连铁道学院学报,2009(4):55-59. |
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| 作者姓名： | 张振琳 黄明 |
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| 作者单位： | 大连交通大学软件学院; |
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| 摘 要： | 针对可辨识矩阵求核方法无法兼顾正确性与高效性的问题，首先从理论上证明了可辨识矩阵中单个元素与核的关系，在此基础上，设计了一种Skowron可辨识矩阵的改进方法以及基于这种改进的Skowron可辨识矩阵的属性核求解方法，该方法不仅适用于任何决策表信息系统，而且有效降低了计算代价．
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| 关 键 词： | 粗糙集 可辨识矩阵 核 修正 |
Improvement of Discernibility Matrix and Method forComputing Attribute Core |
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| ZHANG Zhen-lin,HUANG Ming.Improvement of Discernibility Matrix and Method forComputing Attribute Core[J].Journal of Dalian Railway Institute,2009(4):55-59. |
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| Authors: | ZHANG Zhen-lin HUANG Ming |
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| Institution: | ZHANG Zhen-lin,HUANG Ming(Software Institution,Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | To caluculate the core in rough set theory based on discernibility matrix with an inconsistent decision table quickly,the relationship of a single attribute of discernibility matrix and its core is discovered.An algorithm for computing the core based on an improved discernibility matrix is presented.Theoretical analysis show that the algorithm is suitable for any decision tables,and it is effective in computing the core. |
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| Keywords: | rough set discernibility matrix core improvement |
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