No.

Instances

Features

Number of features selected

Running time (in s)

IWFAST

FAST

IWFAST

FAST

1

150

4

3

1

0.989

0.768

2

625

4

4

4

1.184

0.908

3

536

7

3

1

1.498

0.977

4

958

9

5

3

1.574

1.376

5

178

13

3

4

2.524

0.909

6

690

14

3

3

3.212

1.225

7

435

16

4

3

1.872

0.995

8

41188

20

4

1

2916.119

427.275

9

351

33

5

9

17.135

3.492

10

3196

36

5

1

11.277

3.061

11

267

44

5

3

21.384

3.441

12

32

56

10

6

36.294

4.071

13

226

68

7

12

171.739

5.309

14

2158

72

6

1

54.017

9.285

15

476

166

9

12

236.195

32.328

16

452

259

11

31

5119.651

123.520