计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (16): 32-34.DOI: 10.3778/j.issn.1002-8331.2010.16.009

• 研究、探讨 • 上一篇    下一篇

覆盖概率粗糙集的模糊性

孙秉珍   

  1. 兰州交通大学 交通运输学院,兰州 730070
  • 收稿日期:2008-05-13 修回日期:2009-11-12 出版日期:2010-06-01 发布日期:2010-06-01
  • 通讯作者: 孙秉珍

Fuzziness of covering probability rough sets

SUN Bing-zhen   

  1. School of Traffic and Transportation,Lanzhou Jiaotong University,Lanzhou 730070,China
  • Received:2008-05-13 Revised:2009-11-12 Online:2010-06-01 Published:2010-06-01
  • Contact: SUN Bing-zhen

摘要: 在经典覆盖近似空间中定义了论域上任意元素x的最小子覆盖,基于任意元素的最小子覆盖给出了覆盖粗糙集上、下近似新的描述,进而给出了已有覆盖概率粗糙集模型在最小子覆盖意义下的描述。同时,以覆盖概率粗糙集的粗糙隶属函数为基础,应用经典模糊集熵的概念讨论了覆盖概率粗糙集模糊性的度量。

Abstract: The minimal subcovering of any element x in the universe is defined by the minimal description of x in the classical covering approximation space.Then,a new description of the covering probability rough sets model which is proposed by other authors is given based on the minimal subcovering of any element x in the universe.Furthermore,based on the rough membership function of the covering probability rough sets,the method of the fuzziness measure for covering probability rough sets is given by the classical fuzzy entropy.

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