Interval-valued information system based on dominance relation and its attribute reduction

Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (35): 122-124.

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

Interval-valued information system based on dominance relation and its attribute reduction

YU Yingying，ZENG Xuelan，SUN Xingxing

College of Mathematics and Information Science，Guangxi University，Nanning 530004，China

Received:1900-01-01 Revised:1900-01-01 Online:2011-12-11 Published:2011-12-11

优势关系下的区间值信息系统及其属性约简

于莹莹，曾雪兰，孙兴星

广西大学数学与信息科学学院，南宁 530004

Abstract

Abstract: Aiming at interval-valued information system，a new dominance relation is presented，then upper and low approximation sets of this system are constructed which are based on this dominance relation.Attribute reduction of interval-valued information system is displayed with discernibility matrix.An example illustrates that this method is simple and easy.

Key words: rough set, interval-valued information system, dominance relation

摘要： 针对区间值信息系统，提出一种新的优势关系，并定义了基于这种优势关系的信息系统的上、下近似集。通过可辨识矩阵的方法，提出了区间值信息系统的属性约简方法。通过实例验证该属性约简方法简便易行。

关键词: 粗糙集, 区间值信息系统, 优势关系

YU Yingying，ZENG Xuelan，SUN Xingxing. Interval-valued information system based on dominance relation and its attribute reduction[J]. Computer Engineering and Applications, 2011, 47(35): 122-124.

于莹莹，曾雪兰，孙兴星. 优势关系下的区间值信息系统及其属性约简[J]. 计算机工程与应用, 2011, 47(35): 122-124.

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Interval-valued information system based on dominance relation and its attribute reduction

优势关系下的区间值信息系统及其属性约简

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