Table 2. Confusion matrices for the benignity and malignancy classification in test sets A and B.

		Ground truth
		Test A		Test B
	Class	benign	malignant	benign	malignant
Prediction	benign	32a	0b	4	1
	malignant	1c	27d	0	15
		33	27	4	16
	Samples	60		20

Notes.

For computation of class-wise tissue classification performance we use the following values:

^aTrue positives (TP).

^bFalse positives (FP).

^cFalse negatives (FN).

^dTrue negatives (TN) are not considered in the class-wise metrics, as we report precision and recall for both classes separately in Table 3.