摘要
为找到属性约简的直接判断方法,对形式背景的属性特征问题进行讨论。在一个给定的形式背景中,通过建立属性之间的相似关系,定义了属性的相似类,分析了属性之间的相似程度,给出了属性的不同特征,根据这些特征,实现了对属性约简的直接判断。最后,通过实例分析说明该方法是一种有效合理的属性约简的直接判定方法。
In order to find the way for direct judgment of attribute reduction, this paper mainly discusses attributes characteristics of the formal context. In a given formal context, through building similarity relation of attributes, similar class of attributes is defined, and similarity degree of attributes is discussed, reduction characteristics of attribute are given, and direct judgment of attribute reduction is realized according to these characteristics. Finally, the experimental results show that the way is effective and reasonable for direct iudzment of attribute reduction.
出处
《西华大学学报（自然科学版）》
CAS
2012年第4期37-41,共5页
Journal of Xihua University:Natural Science Edition
基金
四川省科技支撑计划(2012GZ0019)
四川省高校重点实验室(SGXZD1002-10)
关键词
概念格理论
相似关系
属性约简
属性特征
concept lattice theory
similarity relation
attribute reduction
attribute characteristic
