Table 7 Performance measure reported by tenfold cross-validation.

From: Enhanced machine learning—ensemble method for estimation of oil formation volume factor at reservoir conditions

Folds

XGBoost (RMSE)

GradientBoosting (RMSE)

CatBoost (RMSE)

Fold-1

0.0189

0.0236

0.0241

Fold-2

0.0207

0.0280

0.0289

Fold-3

0.0251

0.0225

0.0224

Fold-4

0.0145

0.0172

0.0196

Fold-5

0.0181

0.0259

0.0286

Fold-6

0.0176

0.0232

0.0209

Fold-7

0.0259

0.0183

0.0187

Fold-8

0.0193

0.0212

0.0203

Fold-9

0.0156

0.0288

0.0270

Fold-10

0.0224

0.0240

0.0255

Folds mean

0.0198

0.0232

0.0236