Table 2 Performance of the optimal regression model for each target feature (pressure sensor).

From: Machine learning–based method for analyzing stress distribution in a ship

Target feature (Pressure sensor)

Number of variables (Related pressure sensors)

RMSE

MAE

R2

MD1

25

0.219

0.149

0.998

MD2

19

0.358

0.232

0.999

MD3

14

0.315

0.223

0.998

MD4

14

0.356

0.242

0.999

BM1

15

0.449

0.247

0.940

BM2

25

0.257

0.166

0.984

BM3

6

0.286

0.228

0.987

BM4

22

0.245

0.150

0.996

BM5

23

0.439

0.310

0.999

BP1

19

0.347

0.246

0.999

BP2

7

0.280

0.196

0.992

BP3

26

0.659

0.399

0.996

BP4

17

1.395

0.787

0.999

BP5

18

0.289

0.187

0.999

BP6

8

0.264

0.205

0.999

BP7

23

0.480

0.355

0.999

BP8

6

0.288

0.186

0.999

BP9

20

0.320

0.216

0.999

BS1

10

0.289

0.212

0.974

BS2

24

0.270

0.200

0.994

BS3

8

0.251

0.176

0.983

BS4

13

0.198

0.138

0.997

BS5

18

0.210

0.162

0.980

BS6

7

0.219

0.180

0.999

BS7

23

0.327

0.230

0.999

BS8

14

0.250

0.203

0.998

BS9

22

0.287

0.218

0.999

Mean

0.354

0.239

0.993