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Performance measures in percentage while using the reference database MAHNOB for both training and testing data (subject-independent evaluation).
| Measure | KNN | NB | ANN | SVM | CNN |
|---|---|---|---|---|---|
| Accuracy | 76.88% | 56.88% | 62.5% | 77.5% | 89.38% |
| Specificity | 95% | 86.67% | 85.84% | 95% | 97.5% |
| Precision | 81.82% | 57.9% | 57.5% | 82.86% | 92.11% |
| Recall | 67.5% | 55% | 57.5% | 72.5% | 87.5% |
