Table 10 Comparison of evaluation indicators for the predictive results of combined models based on data 2.

From: Prediction of the corrosion rates of subsea pipelines via KPCA

Model

MAPE/(%)

RMSE

R2

KPCA-NGO-LSSVM

2.5410

0.0621

0.9873

NGO-LSSVM

3.7629

0.0793

0.9434

KPCA-PSO-LSSVM

4.0974

0.0817

0.9217

PSO-LSSVM

5.2731

0.1003

0.9081

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