数据采掘，也称数据库中的知识发现。
Data mining, also known as knowledge discovery in databases.
简约的计算是基于粗糙集理论的数据采掘研究的关键问题。
Reduct calculation is the key issue of the research of rough set based data mining.
然后通过实例讨论了数据采掘在股票分析与决策系统中的应用。
Finally, we discuss the application of data mining for the analysis and decision of stock.
然后通过实例讨论了数据采掘在股票分析与决策系统中的应用。
Finally, we discuss the application of data mining for the analysis and decision of stock.
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