Table 4
Error in the predicted sodium abundance (A(Na)) obtained using the RBF and FFNN interpolation models for verification stars excluded from the training set.
| Model λ[Å] | Method | Sun | PLATO1 | PLATO2 | PLATO3 |
|---|---|---|---|---|---|
| Direct synthesis | 6.24 | 6.50 | 5.72 | 4.22 | |
| 5682 | RBF | 0.025 | −0.003 | 0.007 | 0.003 |
| FFNN | 0.003 | −0.004 | 0.016 | −0.006 | |
| 5688 | RBF | 0.026 | 0.002 | 0.007 | 0.005 |
| FFNN | −0.007 | 0.001 | 0.012 | 0.002 | |
| 5889 | RBF | 0.014 | 0.023 | 0.004 | 0.010 |
| FFNN | 0.013 | 0.019 | 0.010 | 0.003 | |
| 5896 | RBF | 0.014 | 0.019 | 0.005 | 0.009 |
| FFNN | 0.014 | −0.016 | 0.011 | 0.009 | |
| 6154 | RBF | 0.028 | 0.003 | 0.001 | 0.004 |
| FFNN | −0.020 | 0.004 | 0.002 | −0.003 | |
| 6160 | RBF | 0.019 | −0.006 | 0.003 | 0.006 |
| FFNN | −0.014 | 0.010 | 0.002 | 0.001 | |
| 8183 | RBF | 0.030 | 0.004 | 0.007 | 0.014 |
| FFNN | 0.009 | 0.006 | 0.017 | 0.008 | |
| 8194 | RBF | 0.034 | 0.008 | 0.007 | 0.023 |
| FFNN | −0.017 | 0.008 | 0.015 | 0.001 | |
| 10747 | RBF | 0.022 | 0.009 | 0.001 | 0.001 |
| FFNN | −0.015 | 0.001 | 0.001 | −0.009 |
Notes. The first row (‘Direct synthesis’) displays the input abundances, while subsequent rows show the deviation from the reference values (∆A(Na)). The stellar parameters of the verification stars are presented in Fig. 3.
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