Table 1.

Distribution of training, development, and test set data among five histologic patterns and benign cases.

Pattern	Training Set		Development Set		Test Set	Total
	WSI	Crops	WSI	Patches	WSI	WSI
Lepidic	99	515	17	58	64	180
Acinar	115	692	23	269	82	220
Papillary	9	44	3	65	5	17
Micropapillary	41	412	9	50	22	72
Solid	68	425	9	400	54	131
Benign	—	2073	—	226	—	—
Total	245	4161	34	1068	143	422

WSI denotes whole slide image. Crops are variable length and width and annotated by pathologists, while patches are square and of fixed size, obtained from sliding a window over crops. The class distribution for WSI’s in our test set are the average of the labels from three pathologists.