Table 4 Performance metrics summary for training and testing datasets across models.

From: AI driven prediction of early age compressive strength in ultra high performance fiber reinforced concrete

Model type

Status

RMSE

MSE

Rsquared

MAE

RF

Trained

7.518

56.527

0.917

5.777

Tested

10.863

117.994

0.816

7.882

GB

Trained

6.958

48.409

0.929

5.642

Tested

9.927

98.536

0.849

7.631

SVR

Trained

2.712

7.354

0.989

2.364

Tested

7.743

59.958

0.910

4.178

ANN

Trained

5.037

25.375

0.963

3.820

Tested

9.876

97.526

0.852

6.317

GPR

Trained

1.672

2.795

0.996

1.082

Tested

6.835

46.717

0.932

3.345

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