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Table 4 Features ranking according the FS methods (numerical values of ranking represent the index of feature \(F_{i}\))

From: Feature selection for driving fatigue characterization and detection using visual- and signal-based sensors

FS methods

Ranking

Laplacian

4

5

15

11

12

1

2

6

8

13

10

14

9

16

3

7

CFS

4

10

8

11

5

3

6

12

1

16

13

14

2

9

7

15

LLCFS

4

5

15

1

11

12

10

8

16

2

9

13

6

14

3

7

Inf-FS

4

5

15

1

11

12

10

13

14

2

8

16

9

6

3

7

ECFS

4

5

1

15

11

2

12

6

10

8

13

3

14

9

16

7

SFS

6

5

11

12

4

1

15

2

3

13

16

8

10

7

14

9