Research Article
Eddy Current Inversion Models for Estimating Dimensions of Defects in Multilayered Structures
Table 2
Main results obtained with the ANN, PLS regression and KPLS regression methods.
| Data sets | ā | ā | ANN | PLS | KPLS |
| Training set | Length | | 0.915 | 0.911 | 0.986 | RMSEC | 0.316 | 0.323 | 0.128 | Width | | 0.907 | 0.887 | 0.931 | RMSEC | 0.338 | 0.372 | 0.291 | Depth | | 0.929 | 0.902 | 0.966 | RMSEC | 0.381 | 0.448 | 0.264 |
| Testing set | Length | | 0.705 | 0.858 | 0.953 | RMSEP | 0.598 | 0.412 | 0.235 | Width | | 0.691 | 0.821 | 0.894 | RMSEP | 0.611 | 0.471 | 0.358 | Depth | | 0.712 | 0.841 | 0.916 | RMSEP | 0.618 | 0.573 | 0.415 |
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