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Comparison of the mean accuracy results of kNN and SVM classification models for the four selected regions after 10 repetitions of calculations.
| Feature Selection | Mean Accuracy (%) | |||
|---|---|---|---|---|
| Region (cm−1) | kNN-f | kNN-w | SVM-c | SVM-q |
| 450–1729 | 76.2 (2.9) | 78.0 (3.6) | 73.8 (4.1) | 76.9 (4.3) |
| 790–1729 | 79.4 (3.8) | 82.1 (2.5) | 80.0 (2.3) | 82.5 (2.9) |
| 1140–1729 | 72.8 (5.1) | 77.3 (2.2) | 77.5 (3.4) | 78.5 (2.2) |
| 1368–1729 | 63.3 (1.9) | 65.8 (4.2) | 68.5 (5.8) | 64.5 (1.8) |
