Table 5.

A summary of the performances for AD vs. MCI classification.

Method	Modality	ACC (%)	SEN (%)	SPEC (%)	BAC (%)	AUC (%)
STL
	MRI	62.68±7.01	4.00	93.00	48.50	59.16
	PET	72.02±6.73	31.33	93.00	62.17	69.50
	MP	69.26±8.66	51.00	78.56	64.78	71.40
	MPC	68.40±14.48	41.33	82.44	61.89	70.19
SMTL
	MRI	70.60±5.97	39.00	86.67	62.83	66.90
	PET	73.31±3.25	33.00	94.00	63.50	67.78
	MP	74.60±9.57	46.67	89.00	67.83	72.85
	MPC	72.60±9.88	37.33	91.00	64.17	71.74

(STL, Single-Task Learning, SMTL, Subclass-based Multi-Task Learning). The boldface denotes the best performance in each metric.