Model

RMSE

MAE

R² (adj)

Gaussian Process

with Linear kernel

0.4003

0.3134

0.9247

Gaussian Process

with Polynomial kernel

0.3941

0.3056

0.9267

Gaussian Process

with RBF kernel

0.6253

0.4695

0.9014

Gaussian Process

with Laplacian kernel

0.6551

0.5180

0.8926