Table 4.
Classification metrics for the three-class classification (degenerative (D), traumatic (T), control (C)) using the five different feature selections.
| Feat. Selection | Alg. | Acc. | Sens D | Spec D | Sens T | Spec T | Sens C | Spec C |
|---|---|---|---|---|---|---|---|---|
| TOT | RF | 71.7 | 87.5 | 63.6 | 57.1 | 93.8 | 50.0 | 92.1 |
| GB | 67.4 | 87.5 | 68.2 | 64.3 | 84.4 | 12.5 | 92.1 | |
| DT | 63.0 | 79.2 | 59.1 | 71.4 | 78.1 | 0.00 | 97.4 | |
| B-C | RF | 76.1 | 87.5 | 68.2 | 85.7 | 90.6 | 25.0 | 97.4 |
| GB | 69.9 | 79.2 | 72.7 | 71.4 | 90.6 | 37.5 | 86.8 | |
| DT | 58.7 | 66.7 | 77.3 | 78.6 | 65.6 | 0.00 | 92.2 | |
| Bone | RF | 76.1 | 91.7 | 72.7 | 87.5 | 87.5 | 12.5 | 91.4 |
| GB | 67.4 | 83.3 | 68.2 | 78.6 | 78.1 | 0.00 | 97.4 | |
| DT | 60.9 | 79.2 | 63.6 | 50.0 | 81.2 | 25.0 | 89.5 | |
| Cartilage | RF | 69.6 | 87.5 | 59.1 | 50.0 | 90.6 | 50.0 | 94.7 |
| GB | 63.0 | 75.0 | 77.3 | 57.1 | 81.2 | 37.5 | 84.2 | |
| DT | 63.0 | 75.0 | 86.4 | 57.1 | 71.9 | 37.5 | 86.6 | |
| WT-C | RF | 63.0 | 83.3 | 77.3 | 57.1 | 75.0 | 12.5 | 89.5 |
| GB | 60.9 | 75.0 | 77.3 | 57.1 | 75.0 | 28.6 | 86.8 | |
| DT | 60.9 | 75.0 | 72.7 | 57.1 | 81.2 | 25.0 | 84.2 |