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sqlserver2008挖掘准确性图表中问题剖析
在sql server 2008 Business Intelligence Development Studio中的数据挖掘设计器的“挖掘准确性图表”选项中,提供了提升图,利润图,分类矩阵,交叉验证报表,用来比较挖掘结构中挖掘模型的预测准确性。 当我们生成一个数据挖掘模型项目,在查看挖掘准确性图表的时候 ...
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