计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (35): 122-124.
• 数据库、信号与信息处理 • 上一篇 下一篇
于莹莹,曾雪兰,孙兴星
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YU Yingying,ZENG Xuelan,SUN Xingxing
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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
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
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.
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.
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