Table 11 Model validation for COF.

From: Tribological performance of UV treated nanodiamond reinforced polyurethane nanocomposites through Taguchi and machine learning technique

Model

R²

MSE

RMSE

MAE

MAPE

SVR

0.97

0.00038

0.019

0.017

0.041

Liner Regression

0.80

0.002

0.053

0.047

0.105

XGBoost

0.98

0.00023

0.015

0.011

0.026

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