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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．
43 (2000) 01-0007-04 Abstract: According to the rough approximation accuracy of the set and partition of the relative attributes in the information table, a criterion for measuring the importance of attribute is given. On this basis, a simpler and effective algorithm for attribute reduction of information table is proposed.