Table 4 Average performance of the optimal models on the training and independent test datasets with different feature selection algorithms.

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

Feature selection algorithm

Training dataset

Independent test dataset

RMSE

MAE

R²

RMSE

MAE

R²

XGBoost

0.354

0.239

0.993

1.107

0.718

0.958

LightGBM

0.407

0.262

0.993

5.993

2.092

0.921

CatBoost

0.406

0.261

0.994

1.691

0.955

0.968