Research Article
A New Approach of Disaster Forecasting Based on Least Square Optimized Neural Network
Table 2
Sample quantization table.
| Name | Mining depth | Mining thickness | Coal seam dip | Roof management | Geological structure | Strength of coal and rock | Mining method | Impact situation |
| 1 | 0.45 | 0.50 | 0.83 | 0.10 | 0.40 | 0.40 | 0.10 | Weak impact | 2 | 0.36 | 0.18 | 0.15 | 0.40 | 0.10 | 0.40 | 0.70 | General impact | 3 | 1.00 | 1.00 | 0.74 | 0.40 | 1.00 | 0.70 | 0.40 | General impact | 4 | 0.65 | 0.23 | 0.51 | 0.40 | 0.70 | 0.70 | 0.10 | Weak impact | 5 | 0.70 | 0.73 | 0.47 | 0.70 | 0.70 | 0.70 | 0.70 | General impact | 6 | 0.04 | 0.36 | 0.89 | 0.10 | 1.00 | 0.70 | 0.10 | Micro impact | 7 | 0.48 | 0.27 | 0.51 | 0.70 | 0.10 | 0.40 | 1.00 | High impact | 8 | 0.82 | 0.82 | 0.60 | 0.10 | 0.70 | 0.40 | 0.10 | Weak impact | 9 | 0.43 | 0.82 | 0.94 | 1.00 | 1.00 | 1.00 | 1.00 | High impact | 10 | 0.43 | 0.32 | 0.32 | 1.00 | 0.10 | 0.10 | 0.10 | Weak impact | 11 | 0.34 | 0.27 | 0.32 | 0.70 | 0.10 | 0.40 | 0.70 | General impact | 12 | 0.47 | 0.00 | 0.30 | 0.70 | 0.40 | 0.40 | 0.10 | Weak impact | 13 | 0.58 | 0.55 | 0.32 | 0.40 | 0.40 | 0.70 | 0.70 | General impact | 14 | 0.52 | 0.36 | 0.32 | 0.40 | 0.70 | 0.40 | 1.00 | General impact | 15 | 0.38 | 0.59 | 1.00 | 0.10 | 1.00 | 0.70 | 0.40 | Weak impact | 16 | 0.63 | 0.64 | 0.38 | 0.70 | 0.70 | 0.70 | 0.70 | General impact | 17 | 0.40 | 0.36 | 0.43 | 0.40 | 1.00 | 0.10 | 0.70 | Weak impact | 18 | 0.51 | 1.00 | 0.09 | 0.10 | 0.70 | 0.40 | 0.10 | Micro impact | 19 | 0.38 | 0.18 | 0.15 | 0.40 | 0.10 | 0.10 | 0.40 | Weak impact | 20 | 0.26 | 0.18 | 0.17 | 0.40 | 0.10 | 0.40 | 0.70 | Weak impact | 21 | 0.50 | 0.32 | 0.96 | 0.70 | 0.40 | 0.70 | 0.40 | General impact | 22 | 0.47 | 0.18 | 0.43 | 0.70 | 0.70 | 0.40 | 0.40 | Weak impact | 23 | 0.34 | 1.00 | 0.30 | 1.00 | 0.70 | 0.40 | 1.00 | General impact | 24 | 0.49 | 0.09 | 0.00 | 0.10 | 0.10 | 0.10 | 0.10 | Micro impact | 25 | 0.42 | 0.27 | 0.34 | 0.70 | 0.40 | 0.70 | 0.70 | General impact | 26 | 0.32 | 2.36 | 0.21 | 0.70 | 0.10 | 0.70 | 1.00 | General impact | 27 | 0.00 | 0.45 | 0.89 | 0.10 | 1.00 | 0.40 | 0.40 | Micro impact | 28 | 0.81 | 0.82 | 0.53 | 0.70 | 0.70 | 1.00 | 1.00 | High impact | 29 | 0.53 | 0.18 | 0.38 | 0.10 | 0.40 | 0.10 | 0.10 | Micro impact | 30 | 0.77 | 0.45 | 0.53 | 0.40 | 0.70 | 0.40 | 0.70 | General impact |
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