一般来说呢,最优的threshold就是橙色曲线离蓝色虚线(基准线)最远的一点啦,或者橙色曲线上离左上角最近的一点,再或者是根据用户自己定义的cost function来的。这里有详细的具体怎么实现。http://www.medicalbiostatistics.com/roccurve.pdf 相对的, 还有一个PR curve,就是以precision recall为轴,取不同的threshold画...
它的意思是输出的结果是一个ranked list,里边每一个元素包含了类别、框的信息,以及confidence,这个confidence就用来排序。有了排序,就可以计算AP了,然后再针对所有分类,取一个mean,就得到了mAP。这里为何要排序呢?是因为每一个框有一个confidence,mAP作为评估指标,需要考虑confidence进来。比方说我给出一个框,说我有...
模型就越好。这个曲线下面积就称为 AUC（Area Under the Curve）。
模型就越好。这个曲线下面积就称为 AUC（Area Under the Curve）。
F-Kspectra2F-K 谱 F-K transform F-K 变换 F-Kvelocity3filtering F-K 速度滤波 F. 二月 F. 满 F. 面宽;齿宽 F. 频率计 F.B. 运货单 F.C. 期货交易合同 f.c. 英尺-烛光 F.C.B.P. 可付外币 F.C.C. 面心立方 F.D. 加工和钻孔 ...
使用Python语言进行统计学分析。符合正态分布的计量资料以均数±标准差(x±s)表示。计算各模型预测性能指标的95%置信区间(confidence interval,CI)。采用DeLong检验比较在同一病理分类下参考模型与其他机器学习方法的C统计量的差异。双侧检验...
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confidence interval 置信区间 confidence level 置信水平 conjugate acid-base pair 共轭酸碱对 constant weight 恒量 contamination 沾污 continuous extraction 连续萃取 continuous spectrum 连续光谱 coprecipitation 共沉淀 correction 校正 correlation coefficient 相关系数 ...
His confidence can also affect how the other team views him. A. It is important to be aware of these factors. B. It is necessary to get to know your competitor and yourself. C. Also, there are ways to play something smartly and do better. D. If you are tired, you ma...
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