Research Article
Discrimination between Alzheimer's Disease and Mild Cognitive Impairment Using SOM and PSO-SVM
Table 4
Classification results (SOM).
| | Proportion | Volume
features | Volume features + PCA | Shape features | Shape features + PCA | Volume + shape features | Volume + shape features + PCA |
| | AD (versus NC) |
| | Accuracy | 76.47% | 82.35% | 64.71% | 70.59% | 76.47% | 88.24% | | Sensitivity | 81.25% | 87.50% | 68.75% | 70.59% | 76.47% | 88.24% | | Specificity | 77.78% | 83.33% | 66.67% | 70.59% | 76.47% | 88.24% |
| | MCI (versus NC) |
| | Accuracy | 61.11% | 66.67% | 50.00% | 50.00% | 66.67% | 72.22% | | Sensitivity | 78.57% | 85.71% | 64.29% | 64.29% | 75.00% | 86.67% | | Specificity | 66.67% | 71.43% | 57.14% | 57.14% | 68.42% | 75.00% |
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