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ROC曲线

出自维基百科,自由个百科全书

ROC曲线是一种显示二元分类系统个性能搭阈值关系个曲线。渠是根据真阳性率(TPR)搭伪阳性率(FPR)两只指标画出来个。真阳性率是指畀正确判断个正例数占实际正例总数个比值,伪阳性率是指畀错误判断个负例数占实际负例总数个比值。

AUC(Area Under Curve)是指ROC曲线下个面积。

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