• 2022-07-27
    有关机器学习分类算法的Precision和Recall,以下定义中正确的是(假定tp = true positive, tn = true negative, fp = false positive, fn = false negative)( )
    A: Precision = tp / (tn + fn), Recall = tp /(tp + fp)
    B: Precision= tp / (tp + fp), Recall = tp / (tp + fn)
    C: Precision = tp / (tn + fp), Recall = tp /(tp + fn)
    D: Precision = tp / (tp + fp), Recall = tp /(tn + fn)