Table 2 The results of the feature important value.
From: A novel combined intelligent algorithm prediction model for the risk of the coal and gas outburst
No. | Parameters | Feature importance value |
|---|---|---|
X1 | Gas content, m3/t | 0.7537 |
X2 | Gas pressure, MPa | 1.0803 |
X3 | Index of the initial velocity of diffusion of coal gas, mmHg | 0.1454 |
X4 | Coefficient of firmness of coal | 0.3668 |
X5 | Distance from geological structure, m | 0.0207 |
X6 | The thickness of coal seams; m | 0.2474 |
X7 | Maximum drilling cuttings volume, kg/m | 0.1865 |
X8 | The initial velocity of gas emission from boreholes, L/min | 0.0801 |
