计算机应用

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基于层次聚类的差异化属性约简算法

汤周文 叶东毅   

  1. 福建省福州大学数计学院 福建省福州大学数计学院
  • 收稿日期:2008-09-02 修回日期:2008-10-14 出版日期:2009-02-01 发布日期:2009-04-22
  • 通讯作者: 汤周文

Dissimilar attribute reductions based on hierarchical clustering method

TANG ZhouWen YE DongYi   

  • Received:2008-09-02 Revised:2008-10-14 Online:2009-02-01 Published:2009-04-22
  • Contact: TANG ZhouWen

摘要: 属性约简是粗糙集用于数据分析的一个重要概念,提出了一个计算差异化属性约简的算法。利用自底向上的聚合层次聚类方法对决策表的条件属性集进行聚类,得到条件属性集的k个划分,然后对这k个属性子集进行后处理操作而得到k个有较大差异的约简属性集。实验结果表明了算法的有效性。

关键词: 属性约简, 差异, 层次聚类

Abstract: Attribute reduction is an important concept in rough set data analysis. An algorithm for dissimilar reductions finding was presented. Method of bottomup agglomerative hierarchical clustering was used to get k partitions of conditional attributes set, and then these k attribute sets were dealt with by postprocessing and get k dissimilar attribute reductions. Result of experiments show that our method is effective.

Key words: attribute reduction, dissimilar, hierarchical clustering