Table 4. Classification results for two classes—control and early mild cognitive impairment.
The best results for each test metric is indicated in bold italics.
| Model | Train accuracy | Validation accuracy | Test accuracy | Test sensitivity | Test specificity | 
|---|---|---|---|---|---|
| Siamese 3D | 0.7331 | 0.7344 | 0.6719 | 0.6749 | 0.6511 | 
| ViT | 0.7932 | 0.7020 | 0.6320 | 0.6720 | 0.6311 | 
| DenseNet | 0.9596 | 0.7383 | 0.5938 | 0.6094 | 0.5913 | 
| EfficientNet B7 | 0.5807 | 0.6523 | 0.5042 | 0.4915 | 0.4640 |