Research Article
[Retracted] Application of BP Neural Network Model in Risk Evaluation of Railway Construction
Table 7
Number 20 countries in Europe.
| | Number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| | Country | Albania | Estonia | Belarus | Bulgaria | Bosnia | Poland | Russia | Montenegro | Czech | Croatia |
| | Number | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| | Country | Latvia | Lithuania | Romania | Macedonia | Moldova | Serbia | Slovakia | Slovenia | Ukraine | Hungary |
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