Table 3.

The AUCs on the Pathology9 binary classification tasks. The average AUC score of tuned local-mi is 0.84 (±0.05); The average AUC score of tuned global-mi is 0.81 (±0.05).

Method	Re-train Encoder?	Atelectasis		Cardiomegaly		Consolidation
–	–	CPC	MINE	CPC	MINE	CPC	MINE
image-only	N/A	0.76		0.71		0.78
global-mi	frozen	0.65	0.63	0.79	0.79	0.67	0.65
global-mi	tuned	0.74	0.77	0.81	0.81	0.81	0.82
local-mi	frozen	0.74	0.61	0.73	0.77	0.65	0.65
local-mi	tuned	0.73	0.86	0.82	0.84	0.83	0.83
–	–	Edema		Lung Opacity		Pleural Effusion
–	–	CPC	MINE	CPC	MINE	CPC	MINE
image-only	N/A	0.89		0.86		0.69
global-mi	frozen	0.81	0.81	0.69	0.68	0.74	0.74
global-mi	tuned	0.87	0.88	0.83	0.84	0.90	0.90
local-mi	frozen	0.78	0.80	0.66	0.69	0.69	0.72
local-mi	tuned	0.89	0.89	0.82	0.88	0.92	0.92
–	–	Pneumonia		Pneumothorax		Support Devices
–	–	CPC	MINE	CPC	MINE	CPC	MINE
image-only	N/A	0.75		0.65		0.72
global-mi	frozen	0.71	0.70	0.65	0.66	0.70	0.68
global-mi	tuned	0.75	0.76	0.75	0.77	0.77	0.79
local-mi	frozen	0.61	0.66	0.70	0.67	0.72	0.74
local-mi	tuned	0.78	0.79	0.79	0.76	0.87	0.81