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Classification performance of the KNN algorithm with metric learning methods.
| Data (length of feature set) | Prenorm (4) | Norm 01 (5) |
|---|---|---|
| KNN | 80.79% | 83.68% |
| without PCA | 80.79% | 83.68% |
| PCA | 82.11% | 81.84% |
| PCA + LDA | 77.89% | 96.33% |
| PCA + RCA | 77.63% | 96.33% |
| PCA + LFDA | 76.97% | 96.33% |
| PCA + NCA | 76.58% | 86.32% |
| PCA + LMNN | 76.84% | 96.33% |
