3.
随机森林和XGBoost模型的预测价值
The predictive value of random forest and XGBoost model
| Items | Stone-residual | Stone-free | Total |
| Random forest model, n | |||
| Positive | 15 | 8 | 23 |
| Negative | 10 | 38 | 48 |
| Total | 25 | 46 | 71 |
| XGBoost model, n | |||
| Positive | 17 | 6 | 23 |
| Negative | 8 | 40 | 48 |
| Total | 25 | 46 | 71 |