| 一种协调信息系统的快速求核算法 |
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| 引用本文： | 黄丽萍.一种协调信息系统的快速求核算法[J].漳州师院学报,2008(3):32-35. |
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| 作者姓名： | 黄丽萍 |
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| 作者单位： | [1]漳州师范学院计算机科学与工程系,福建漳州363000 |
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| 基金项目： | 福建省自然科学基金资助项目（2007J0039）;福建省教育厅基金资助项目（2007F5097） |
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| 摘 要： | 属性核的确定对于求属性约简具有重要的意义,利用协调信息系统中条件属性的划分相对于决策属性划分的概率分布为单点分布的性质,提出一种新的求核算法.采用多个UCI数据集进行实验,结果表明该算法的效率高于基于辨识矩阵和基于信息熵的求核算法.
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| 关 键 词： | 粗糙集 属性核 协调信息系统 单点分布 |
An Efficient Algorithm to Compute Core of Consistent Information System |
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| HUANG Li-ping.An Efficient Algorithm to Compute Core of Consistent Information System[J].Journal of ZhangZhou Teachers College(Philosophy & Social Sciences),2008(3):32-35. |
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| Authors: | HUANG Li-ping |
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| Institution: | HUANG Li-ping (Department of Computer Science and Engineering, Zhangzhou Normal University, Zhangzhou, Fujian 363000, China) |
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| Abstract: | The determination of attribute core may be significantly contributory to attribute reduction. A new algorithm of computing the attribute is put forward based on the property of consistent information system that the probability distribution of condition attribution partitions relative to decision attribution partitions is one-point distribute. Several UCI data sets are used to test the approaches. The experimental and performance studies show that it is more efficient than the algorithms which based on discernibility matrix and conditional information entropy. |
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| Keywords: | rough set attribute core consistent information system one-point distribute |
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