Research Article
A Financial Risk Early Warning of Listed Companies Based on PCA and BP Neural Network
Table 4
Measurement errors for different numbers of hidden layers neurons.
| Numbers | Training error | Test error | Total error |
| 1 | 4.9468 | 3.0361 | 7.983 | 2 | 5.9912 | 3.5811 | 9.5723 | 3 | 4.4522 | 3.8146 | 8.2668 | 4 | 4.4522 | 4.5153 | 8.9675 | 5 | 4.2873 | 3.8925 | 8.1798 | 6 | 1.9787 | 3.0361 | 5.0149 | 7 | 3.4078 | 3.7368 | 7.1446 | 8 | 3.7926 | 4.5153 | 8.3079 | 9 | 2.0337 | 4.671 | 6.7047 | 10 | 3.188 | 3.4254 | 6.6134 | 11 | 3.3529 | 3.8925 | 7.2454 | 12 | 1.3741 | 3.5032 | 4.8774 | 13 | 1.8138 | 3.8925 | 5.7063 | 14 | 2.6383 | 1.7127 | 4.351 | 15 | 0.8794 | 2.9583 | 3.8377 | 16 | 2.2536 | 3.3475 | 5.6011 | 17 | 1.4291 | 3.2697 | 4.6988 | 18 | 1.539 | 3.3475 | 4.8866 | 19 | 1.9787 | 4.0482 | 6.0269 | 20 | 2.1986 | 3.1918 | 5.3904 |
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