Decision attribute reduction of interval-valued information system

doi:10.3778/j.issn.1002-8331.2009.28.044

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (28): 148-150.DOI: 10.3778/j.issn.1002-8331.2009.28.044

• 数据库、信号与信息处理 • Previous Articles Next Articles

Decision attribute reduction of interval-valued information system

LIU Peng-hui¹，CHEN Zi-chun^1，2，QIN Ke-yun²

1.School of Mathematics and Computer，Xihua University，Chengdu 610039，China
2.Department of Mathematics，Southwest Jiaotong University，Chengdu 610013，China

Received:2008-06-23 Revised:2008-09-27 Online:2009-10-01 Published:2009-10-01
Contact: LIU Peng-hui

区间值信息系统的决策属性约简

刘鹏惠¹，陈子春^1，2，秦克云²

1.西华大学数学与计算机学院，成都 610039
2.西南交通大学理学院，成都 610013

通讯作者: 刘鹏惠

Abstract

Abstract: A new variable precision tolerance relation is defined in interval-valued information system by similarity grade of attribute’s interval-value，based on the variable precision tolerance relation the problems of decision attribute reduction and relative decision attribute reduction in interval-valued information system are studied，from which an approach for decision attribute reduction and relative decision attribute reduction is provided in interval-valued information system.

Key words: interval-valued information system, similarity level, variable precision tolerance relation, decision attribute reduction

摘要： 借助于属性区间值的相似程度在区间值信息系统上定义了一种具有变精度的相容关系，讨论了在这种相容关系下决策区间值信息系统的决策属性约简与决策属性相对约简，并得到了求决策属性约简与决策属性相对约简的具体操作方法。

关键词: 区间值信息系统, 相似水平, 变精度相容关系, 决策属性约简

CLC Number:

TP18

LIU Peng-hui¹，CHEN Zi-chun^1，2，QIN Ke-yun². Decision attribute reduction of interval-valued information system[J]. Computer Engineering and Applications, 2009, 45(28): 148-150.

刘鹏惠¹，陈子春^1，2，秦克云². 区间值信息系统的决策属性约简[J]. 计算机工程与应用, 2009, 45(28): 148-150.

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Decision attribute reduction of interval-valued information system

区间值信息系统的决策属性约简

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