Table 7.

Classification performance of proposed approach for the automated categorization of wake vs. S1-sleep vs. S2-sleep vs. S3-sleep vs. S4-sleep vs. REM.

Cross-Validation	Overall Accuracy (%)	Accuracy of Wake (%)	Accuracy of S1-Sleep (%)	Accuracy of S2-Sleep (%)	Accuracy of S3-Sleep (%)	Accuracy of S4-Sleep (%)	Accuracy of REM (%)	Kappa Score
Hold-out	$71.08\pm 0.37$	$85.05\pm 0.79$	$45.79\pm 0.29$	$75.24\pm 0.90$	$58.30\pm 0.96$	$59.71\pm 2.18$	$72.51\pm 0.52$	$0.61\pm 0.00$
10-fold	$71.68\pm 0.84$	$86.64\pm 2.00$	$48.33\pm 3.29$	$72.59\pm 1.69$	$57.22\pm 2.25$	$82.42\pm 2.19$	$72.88\pm 2.59$	$0.65\pm 0.01$