Research Article
A Sequential Optimization Sampling Method for Metamodels with Radial Basis Functions
Table 4
Metamodel accuracy results for functions 1–6 between SOSM and one-stage sampling methods.
| Number | SOSM | LHD | RND | | RMSE | NRMSE | | RMSE | NRMSE | | RMSE | NRMSE | |
| 1 | 0.663 | 28.214 | −10.002 | 0.722 | 30.698 | −9.137 | 0.817 | 34.766 | −8.728 | −10 | 2 | 0.061 | 9.798 | −1.715 | 0.090 | 14.524 | −1.611 | 0.122 | 19.659 | −1.662 | −1.715 | 3 | 1.674 | 6.464 | −0.002 | 1.790 | 6.913 | 0.140 | 2.072 | 8.001 | 0.040 | 0 | 4 | 0.728 | 38.118 | −6.556 | 0.810 | 42.456 | −5.786 | 0.861 | 45.116 | −5.374 | −6.551 | 5 | 2.455 | 10.531 | −34.243 | 3.353 | 14.380 | −12.928 | 3.789 | 16.253 | −9.907 | −34.63 | 6 | 0.995 | 10.011 | 0.116 | 0.992 | 9.991 | 2.284 | 1.076 | 10.830 | 2.070 | 0 |
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