Table 2 Performance metrics of different models.

From: Assessing predictive performance of supervised machine learning algorithms for a diamond pricing model

Model

RMSE

MSE

MAE

R2

Time (HH:MM:SS)

RF regressor

523.50

274052.77

253.80

0.985

00:00:05

MLP regressor

563.74

317802.79

286.31

0.980

12:29:59

XGBoost regressor

612.88

375621.89

323.08

0.972

00:00:09

Boosted dt regressor

711.31

505962.77

345.1120

0.968

00:00:04

Knn regressor

1346.65

1813463.53

728.61

0.887

00:00:03

Linear regression

1395.41

1947164.32

833.93

0.876

00:00:03

Support vector regression

3044.49

9268924.23

1632.91

0.421

00:00:50