Table 2.

Slide-wise performance on the external dataset of the HGH cohort.

	Accuracy	NPVa	Specificity	Sensitivity	Precision	F1-score	AUROCb	AUPRCc
Before transfer learning	0.77	0.95	0.77	0.71	0.29	0.29	0.77	0.38
After transfer learning	0.92	0.98	0.92	0.86	0.60	0.71	0.88	0.65
Performance gain (value, %)	+ 0.15 (19.48)	+ 0.03 (3.16)	+ 0.15 (19.48)	+ 0.15 (21.13)	+ 0.31 (106.90)	+ 0.42 (144.83)	+ 0.11 (14.29)	+ 0.27 (71.05)

^aNegative predictive value.

^bThe area under the receiver-operating characteristics curve.

^cThe area under the precision-recall curve.