基于逼近精度的一个粗糙集属性约简算法

An Algorithm for Attributes Reduction in Rough Set Based on Approximation Quality

４３（２０００）０１－０００７－０４摘要：根据信息表中相对每个条件属性的集合和划分的粗糙逼近精度，给出衡量属性重要性程度的一种准则．在此基础上，提出了信息表属性约简的一个较为简单有效的算法．

A criterion is given for measuring attributes importance according to the approximation quality with respect to the partition and condition attributes set. Then a simple and efficient algorithm for attribute reduction is proposed on the basis of this criterion.