. Author manuscript; available in PMC: 2022 Jul 1.

Published in final edited form as: Med Image Anal. 2021 Apr 20;71:102076. doi: 10.1016/j.media.2021.102076

Table 4:

Results of seven methods in AD vs. MCI classification in four different transfer learning settings.

Source Domain→Target Domain	Method	ACC (%)	SEN (%)	SPE (%)	AUC (%)
ADNI-1→ADNI-2	TCA	63.62	22.22	83.28	58.76
	SA	64.02	25.31	82.40	61.25
	GFK	65.01	35.80	78.89	64.10
	CORAL	67.99	29.01	86.51	67.40
	VoxCNN	69.58	46.91	80.35	70.79
	DANN	73.76	41.98	88.86	75.02
	AD²A (Ours)	75.55	46.29	89.44	77.67
ADNI-2→ADNI-1	TCA	53.57	22.44	74.04	58.21
	SA	53.80	21.95	74.68	60.12
	GFK	60.35	43.41	71.47	63.65
	CORAL	67.70	41.46	84.93	66.79
	VoxCNN	68.09	41.95	85.26	68.96
	DANN	68.47	42.43	85.57	69.65
	AD²A (Ours)	70.41	43.90	87.82	71.99
ADNI-1→ADNI-3	TCA	71.84	46.67	80.90	60.48
	SA	73.11	51.67	80.33	59.30
	GFK	64.29	50.00	69.10	51.75
	CORAL	67.23	51.67	72.47	69.67
	VoxCNN	76.89	51.67	85.39	70.15
	DANN	79.83	53.33	88.76	72.90
	AD²A (Ours)	81.51	55.00	90.45	75.88
ADNI-1+ADNI-2→ADNI-3	TCA	72.68	40.00	83.71	67.32
	SA	73.95	41.67	84.83	64.11
	GFK	65.13	38.33	74.16	56.80
	CORAL	68.49	50.00	74.72	69.85
	VoxCNN	78.57	45.00	89.89	74.74
	DANN	81.09	48.33	92.13	75.96
	AD²A (Ours)	82.35	50.00	93.25	77.61