Research Article
Gradient Boosted Trees Predictive Models for Surface Roughness in High-Speed Milling in the Steel and Aluminum Metalworking Industry
Table 9
Confusion matrix for the slots dataset M1 (GBT).
| | | True Smooth | True Fine | True Semi-Fine | True Medium | Class Precision |
| | Pred. Smooth | 6 | 0 | 0 | 0 | 100.00% | | Pred. Fine | 3 | 19 | 4 | 0 | 73.08% | | Pred. Semi-fine | 1 | 1 | 6 | 2 | 60.00% | | Pred. Medium | 0 | 0 | 0 | 8 | 100.00% |
| | Class Recall | 60.00% | 95.00% | 60.00% | 80.00% | Acc: 78.00% |
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