Research Article
Gradient Boosted Trees Predictive Models for Surface Roughness in High-Speed Milling in the Steel and Aluminum Metalworking Industry
Table 13
Confusion matrix for the M1 geometries dataset (GBT).
| | | True Smooth | True Fine | True Semi-Fine | True Medium | Class Precision |
| | Pred. Smooth | 23 | 3 | 0 | 0 | 88.46% | | Pred. Fine | 0 | 12 | 1 | 3 | 75.00% | | Pred. Semi-fine | 0 | 0 | 35 | 0 | 100.00% | | Pred. Medium | 2 | 1 | 0 | 7 | 70.00% |
| | Class Recall | 92.00% | 75.00% | 97.22% | 70.00% | Acc: 88.51% |
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