Automatic sleep staging using ear-EEG

Table 2 \(\kappa\) values for each subject, for all methods of cross-validation

Subject	1	2	3	4	5	6	7	8	9	Avr.
Useable electrodes	10	10	11	12	6	12	12	11	10	10.4
Scored epochs	1040	964	932	1150	491	926	758	293	857	823
Leave-one-out, \(\kappa\)	0.05	0.36	0.57	0.60	0.03	0.59	0.75	0.65	0.44	0.45
Total, \(\kappa\)	0.50	0.49	0.63	0.65	0.57	0.64	0.78	0.65	0.70	0.62
Individual, \(\kappa\)	0.52	0.52	0.67	0.72	0.55	0.65	0.76	0.70	0.76	0.65

Averages were calculated as the average of all nine columns, not by weighting each subject by number of epochs

ISSN: 1475-925X