what is true positive precision what is the accuracy of prediction and recall curve precision recall curve for class imbalance what is precision recall precision recall curves definition what is the accuracy of recall curves what is true negative accuracy precision recall curve definition what classifies as a negative classifier? what is the accuracy of recall in class imbalance precision recall curve what is the difference between true negative precision and true negative recall? what is true negative precision predict negative accuracy precision can precision and recall be used for classification precision recall curves definition what is rr precision and recall what is the confusion matrix for correct recall how many cases can a classifier predict in a data set? is a positive accuracy or a negative accuracy a valid classifier?