Table 8.

Overview of CNN performance, reporting the precision, the recall and the F1-score of the single classes for image-level classification, in both Catania and the publicly available datasets.

Class	Precision	Recall	F1-score	Support
CNN performance per class (Catania)
Cancer	0.889 ± 0.042	0.749 ± 0.065	0.809 ± 0.029	52
High-grade dysplasia	0.712 ± 0.081	0.648 ± 0.116	0.681 ± 0.047	44
Low-grade dysplasia	0.595 ± 0.023	0.850 ± 0.066	0.700 ± 0.012	54
Hyperplastic polyp	0.854 ± 0.140	0.513 ± 0.146	0.612 ± 0.102	23
Normal	0.928 ± 0.064	0.982 ± 0.016	0.954 ± 0.034	79
CNN performance per class (Radboudumc)
Cancer	0.826 ± 0.069	0.540 ± 0.105	0.642 ± 0.067	50
High-grade dysplasia	0.896 ± 0.106	0.145 ± 0.053	0.245 ± 0.077	22
Low-grade dysplasia	0.838 ± 0.032	0.613 ± 0.075	0.704 ± 0.043	92
Hyperplastic polyp	0.717 ± 0.085	0.726 ± 0.083	0.713 ± 0.033	62
Normal	0.870 ± 0.012	0.821 ± 0.033	0.844 ± 0.018	219
CNN performance per class (GlaS)
Cancer	1.0 ± 0.0	0.625 ± 0.087	0.766 ± 0.065	91
Normal	0.561 ± 0.068	1.0 ± 0.0	0.717 ± 0.049	42
CNN performance per class (CRC)
Cancer	0.857 ± 0.044	0.896 ± 0.041	0.874 ± 0.011	69
Normal	0.904 ± 0.030	0.859 ± 0.057	0.879 ± 0.019	71
CNN performance per class (UNITO sections)
High-grade dysplasia	0.504 ± 0.050	0.210 ± 0.051	0.293 ± 0.052	1370
Low-grade dysplasia	0.820 ± 0.015	0.641 ± 0.042	0.719 ± 0.023	5804
Hyperplastic polyp	0.279 ± 0.041	0.435 ± 0.077	0.332 ± 0.022	544
Normal glands	0.290 ± 0.026	0.533 ± 0.056	0.375 ± 0.030	950
CNN performance per class (UNITO WSIs)
High-grade dysplasia	0.722 ± 0.173	0.182 ± 0.085	0.279 ± 0.105	46
Low-grade dysplasia	0.789 ± 0.021	0.923 ± 0.027	0.850 ± 0.009	184
Hyperplastic polyp	0.871 ± 0.048	0.590 ± 0.152	0.688 ± 0.107	41
Normal glands	0.560 ± 0.079	0.776 ± 0.064	0.646 ± 0.052	21
CNN performance per class (TCGA-COAD)
Cancer	1.0 ± 0.0	0.862 ± 0.051	0.926 ± 0.029	50
CNN performance per class (Xu)
Cancer	0.685 ± 0.074	0.828 ± 0.058	0.746 ± 0.035	355
Normal	0.785 ± 0.051	0.609 ± 0.132	0.677 ± 0.084	362
CNN performance per class (AIDA)
Cancer	0.682 ± 0.106	0.835 ± 0.046	0.744 ± 0.056	31
Low-grade dysplasia	0.590 ± 0.097	0.50 ± 0.000	0.537 ± 0.044	4
Hyperplastic polyp	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0	1
Normal	0.858 ± 0.013	0.748 ± 0.093	0.796 ± 0.052	65
CNN performance per class (IMP-CRC)
Cancer & HGD	0.570 ± 0.049	0.856 ± 0.044	0.681 ± 0.027	268
Low-grade dysplasia	0.851 ± 0.038	0.713 ± 0.094	0.770 ± 0.048	547
Hyperplastic & normal	0.695 ± 0.072	0.546 ± 0.069	0.605 ± 0.037	271

The support of the class represents the number of true positive cases for a particular class.