Table 2 Comparison of evaluation indicators of each model.

From: A novel combined intelligent algorithm prediction model for the tunnel surface settlement

Model

MSE

RMSE

MAPE

ELM

0.6516

0.8072

0.2589

SSA-ELM

0.1525

0.3957

0.1534

CASSA-ELM

0.0030

0.0755

0.0274

EMD-ELM

0.3901

0.6246

0.2031

EMD-SSA-ELM

0.1557

0.3946

0.1050

EMD-CASSA-ELM

0.0026

0.0513

0.0144