类别不平衡

HR Analytics：用 Python 预测员工流失

Hrant Davtyan

Assistant Professor of Data Science American University of Armenia

先验概率

无平衡

$P_0 = 0.76$
$P_1 = 0.24$
$Gini = 0.36$

有平衡

$P_0 = 0.5$
$P_1 = 0.5$
$Gini = 0.5$

让我们来练习！

HR Analytics：用 Python 预测员工流失

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