Table 2 Summary of ML results and significant variable selection.

From: Prediction of tensile strength in aluminum spot welding using machine learning

Model

RMSE

MAE

R2

Linear

132.57

105.79

0.86

Tree—leaf

161.81

129.12

0.79

Ensembling—bagging tree

168.19

134.22

0.77

Ensembling—boosting tree

208.09

166.06

0.65

SVM—linear

154.00

122.89

0.81

GPR—exponential kernal

171.85

137.14

0.77

Kernal—SVM

193.04

154.05

0.70

3-layer ANN

488.17

389.56

-0.89