这是一篇文献，题目是：《基于粗糙集和遗传算法的数据挖掘方法》-This is a document entitled: " Based on Rough Set and Genetic Algorithm Data Mining"

KDD cup 1999 Data. This is the data set used for The Third International Knowledge Discovery and Data Mining Tools Competition, which was held in conjunction with KDD-99 The Fifth International Conference on Knowledge Discovery and Data Mining.

粗糙集扩展模型及其在数据挖掘中的应用研究-Extended rough set model and its application in data mining research