Table 6.

A summary of the performances for MCI-C vs. MCI-NC classification.

Method	Modality	ACC (%)	SEN (%)	SPEC (%)	BAC (%)	AUC (%)
STL
	MRI	56.98±20.61	51.00	60.67	55.83	58.85
	PET	61.58±17.79	55.00	66.00	60.50	60.63
	MP	64.62±14.04	62.50	66.00	64.25	63.87
	MPC	62.89±12.29	58.50	66.00	62.25	58.31
SMTL
	MRI	61.60±13.12	44.00	75.67	59.83	60.76
	PET	66.73±11.32	39.00	88.00	63.50	65.57
	MP	72.02±13.80	58.00	82.67	70.33	69.64
	MPC	70.11±14.21	59.00	78.67	68.83	67.36

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