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Table 4 The selected features for 6-classes classification

From: Sleep stage classification using extreme learning machine and particle swarm optimization for healthcare big data

Recording subject Selected features
slp01a 1 2 4 15 17
slp01b 1 3 4 6 8 9 13 14 15 16 18
slp02a 2 3 6 7 8 11 14 15 16 18
slp02b 2 3 6 8 9 10 11 14
slp03 1 7 9 10 12 14 15
slp04 6 7 8 11 13 14 15 16 18
slp14 1 2 3 10 12 13 14 16 17 18
slp16 1 2 4 8 9 10 11 12 14 15 17 18
slp32 3 4 6 7 10 14 16 18
slp37 1 3 5 7 8 11 14 16
slp41 2 3 5 6 8 10 13 14 17
slp45 2 4 6 7 8 9 10 11 13 14 15 17 18
slp48 1 2 3 4 6 8 10 12 13 14 15 16
slp59 2 3 4 8 12 13 17 18
slp60 1 4 7 8 9 13
slp61 3 5 6 8 17 18
slp66 2 4 7 11 12 13 14 16 18
slp67x 2 4 5 6 9 12 15