Computer Engineering and Applications ›› 2014, Vol. 50 ›› Issue (4): 118-121.

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Attribute reduction of incomplete gray information system

XIAO Yunchao1, LI Xuwu1, ZHAO Yuanli2, ZHAI Xinglong1   

  1. 1.Missile College, Air-force Engineering University, Sanyuan, Shaanxi 713800, China
    2.Air Force Logistics College, Xuzhou, Jiangsu 221000, China
  • Online:2014-02-15 Published:2014-02-14

不完备灰色信息系统属性约简

校云超1,李续武1,赵援莉2,翟兴隆1   

  1. 1.空军工程大学 导弹学院,陕西 三原 713800
    2.空军后勤学院,江苏 徐州 221000

Abstract: Based on the research and analysis of the grey number and grey similarity in grey information system, the improved grey similar relationship is defined, and a kind of extended model grey rough set model is established. And then, the handle process of the incomplete grey information system and the algorithm of the object data selection are given. A kind of the attribute reduction algorithm to the grey information system is proposed and verified through the example in the end.

Key words: incomplete grey information system, grey rough set, improved grey similar relationship, attribute reduction

摘要: 在研究分析灰色信息系统中灰数、灰相似度的基础上,定义了改进型灰色相似关系,建立了灰色粗糙集模型的一种扩展模型,给出了不完备灰色信息系统的处理过程和对象数据筛选算法,提出了一种灰色信息系统的属性约简算法,并通过算例进行了验证分析。

关键词: 不完备灰色信息系统, 灰色粗糙集, 改进型灰色相似关系, 属性约简