基于改进XGBoost算法的深部巷道松动圈智能预测研究

凡兴禹,王雪林

Research on Intelligent Prediction of EDZ Around Deep Tunnels Based on Improved XGBoost Algorithm

Xingyu FAN,Xuelin WANG

表3 GA-XGBoost模型在不同粒子数下的预测性能

Table 3 Performance of GA-XGBoost model under different swarm sizes

粒子数 训练集 测试集 MAE MAPE RMSE R2 MAE MAPE RMSE R2 60 7.572 8.135 12.143 0.8573 8.178 8.786 13.114 0.8233 70 7.483 7.201 10.423 0.8734 8.082 7.777 11.257 0.8384 80 7.384 7.759 11.543 0.8702 7.975 8.380 12.466 0.8357 90 8.312 8.734 12.795 0.8432 8.977 9.433 13.819 0.8098 100 7.943 8.429 12.481 0.8528 8.578 9.103 13.479 0.8191