TABLE 2.

Summary of feature selection results in the application to the ADNI study

	t-tau			Aβ1-42
	Proposed	COSSO	LASSO	Proposed	COSSO	LASSO
Mean of Prediction error	0.870 (0.028)	1.745 (1.869)	0.881 (0.027)	0.830 (0.032)	6.748 (13.176)	0.838 (0.031)
Median of Prediction error	0.869	0.923	0.880	0.829	0.859	0.836
Avg.#	8.08	6.12	14.96	5.72	6.34	14.98
Range #	[4,12]	[1,14]	[14,15]	[3,13]	[1,14]	[14,15]

Note: The numbers are the mean and median of prediction errors from 500 replicates and the numbers within parentheses are their standard deviations. Avg.#: Average number of selected variables. Range #: Range number of selected variables.