Table 3.

Summary of the performances for HC versus MCI classification

Method	Modality	ACC (%)	SEN (%)	SPEC (%)	BAC (%)	PPV (%)	NPV (%)
SK‐SVM	MRI	70.86	40.38	86.87	63.63	61.76	73.50
	PET	82.78	57.69	95.96	76.83	88.24	81.20
	CSF	68.21	50.00	77.78	63.89	54.17	74.76
	CONCAT	85.43	67.31	94.95	81.13	87.50	84.68
ELM	MRI	70.86	40.38	86.87	63.63	61.76	73.50
	PET	82.78	57.69	95.96	76.83	88.24	81.20
	CSF	68.21	50.00	77.78	63.89	54.17	74.76
	CONCAT	85.43	67.31	94.95	81.13	87.50	84.68
MK‐SVM with linear kernel	MRI + PET + CSF	85.43	65.38	95.96	80.67	89.47	84.07
MK‐SVM with RBF kernel	MRI + PET + CSF	84.11	71.15	90.91	81.03	80.43	85.71
SAE	CONCAT	84.77	89.90	75.00	82.45	87.25	79.59
MHS‐ELM (ELM_RBF)	MRI + PET + CSF	87.09	75.00	91.92	83.46	82.98	87.50

Note. Boldface denotes the best performance in individual metric for each classification task.