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针对数据库中知识发现 (KDD)的信息处理问题 ,给出了信息系统中的Rough集理论基本概念的形式化描述 ,并且提出了一种KDD中属性约简算法 (AR) ,实例表明该算法十分有效 .
Aiming at the problem of information processing in knowledge discovery (KDD) in database, a formal description of the basic concepts of Rough set theory in information systems is given, and an attribute reduction algorithm (AR) in KDD is proposed. The example shows that this algorithm is very Effective