![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
(假设precision=TP/(TP+FP),recall=TP/(TP+FN))在二分类问题中,当测试集的正例和负例数量不均衡时,以下评价方案哪个是相对不合理的()。
A.Accuracy:(TP+TN)/all
B.F-value:2recallprecision/(recall+precision)
C.G-mean:sqrt(precision*recall)
D.AUC:曲线下面积
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.Accuracy:(TP+TN)/all
B.F-value:2recallprecision/(recall+precision)
C.G-mean:sqrt(precision*recall)
D.AUC:曲线下面积
A.Open Die Forgings
B.Impression Die Forgings
C.Precision Forgings
D.Hand Forgings
A.Accuracy
B.Precision
C.Perfection
D.Detail
A.f1-Score
B.recall
C.accuracy
D.precision
Implied but not stated is that ______. ()
A.laser-doppler radar is more accurate than microwave radar
B.microwave radar may not ensure absolute precision in measuring varying speeds
C.the light-beam radar can measure only slow speeds with accuracy
D.microwave radar operates at a higher frequency than laser-doppler radar
A.TP 服务的客户/通过各种客户服务渠道联系我们的客户
B.TP 管理层/打入热线的客户
C.TP服务的客户 / 和TP签约的客户
D.TP服务的客户 /TP员工