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Table 3 The average performances of kNN, QDA, and SVM classification methods in sleep stage classification on OSA group.

From: Sleep stage and obstructive apneaic epoch classification using single-lead ECG

Classification

Sleep Stages

Total

Method

Wake

NREM1

NREM2

NREM3

NREM4

REM

Accuracy

kNN

817/1022

307/333

3124/4975

152/159

71/75

465/538

4957/7102

 

= 80%

= 92.3%

= 62.8%

= 95.5%

= 94.6%

= 86.4%

= 69.8%

 

CKI = 0.93

CKI = 0.93

CKI = 0.60

CKI = 0.94

CKI = 0.97

CKI = 0.95

 

QDA

878/1022

317/333

3487/4975

154/159

72/75

492/538

5425/7102

 

= 85.9%

= 95.3%

= 70.1%

= 97.2%

= 96.8%

= 91.4%

= 76.4%

 

CKI = 0.97

CKI = 0.95

CKI = 0.65

CKI = 0.98

CKI = 0.98

CKI = 0.97

 

SVM

883/1022

318/333

3517/4975

155/159

72/75

494/538

5461/7102

 

= 86.4%

= 95.5%

= 70.7%

= 97.6%

= 97.0%

= 91.9%

= 76.9%

 

CKI = 0.98

CKI = 0.98

CKI = 0.72

CKI = 0.98

CKI = 0.98

CKI = 0.97

 
  1. The representation is similar to that of Table 2.