粗糙集是一种处理模糊和不精确性问题的数学工具，数据挖掘能帮助我们从大量的信息中发现有用的信息。介绍了一种基于粗糙集的数据挖掘方法，通过实例分析给出它在电子商务中的应用。%Rough set is a mathematical tool dealing with fuzzy and inaccuracy .Data mining can help us to find useful infor-mation from a large amount of information .In this paper , a data mining method based on rough sets is introduced and its applica-tions in electronic commerce is given by some typical example .
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