Table 3 Validation results for the three regressors tested. Results are given as the average and the standard deviation of the values obtained from each fold of the 10-fold cross-validation scheme after age bias correction. The values in bold show the combination with the best result
From: Increased MRI-based Brain Age in chronic migraine patients
SVR | RF | MLP | |||||
|---|---|---|---|---|---|---|---|
MAE | r | MAE | r | MAE | r | ||
Combined Feature Set | 20 features | 7.40 ± 0.50 | 0.82 ± 0.02 | 6.59 ± 0.51 | 0.84 ± 0.02 | 5.99 ± 0.55 | 0.86 ± 0.02 |
30 features | 7.21 ± 0.50 | 0.83 ± 0.02 | 6.59 ± 0.48 | 0.84 ± 0.02 | 5.81 ± 0.47 | 0.86 ± 0.02 | |
40 features | 7.10 ± 0.42 | 0.83 ± 0.02 | 6.58 ± 0.48 | 0.84 ± 0.02 | 5.79 \(\varvec{\pm }\) 0.38 | 0.87 \(\varvec{\pm }\) 0.01 | |
Morphological Feature Set | 20 features | 8.49 ± 0.66 | 0.78 ± 0.02 | 8.75 ± 1.05 | 0.76 ± 0.03 | 7.46 ± 0.85 | 0.80 ± 0.02 |
30 features | 8.18 ± 0.65 | 0.79 ± 0.02 | 8.62 ± 0.93 | 0.77 ± 0.03 | 7.31 ± 0.76 | 0.81 ± 0.02 | |
40 features | 7.96 ± 0.55 | 0.80 ± 0.02 | 8.50 ± 0.74 | 0.77 ± 0.02 | 7.13 \(\varvec{\pm }\) 0.52 | 0.81 \(\varvec{\pm }\) 0.02 | |
Intensity Feature Set | 20 features | 9.25 ± 0.67 | 0.75 ± 0.02 | 9.12 ± 0.68 | 0.75 ± 0.02 | 8.39 ± 0.76 | 0.77 ± 0.02 |
30 features | 9.15 ± 0.75 | 0.75 ± 0.02 | 9.10 ± 0.75 | 0.76 ± 0.02 | 8.33 ± 0.93 | 0.78 ± 0.03 | |
40 features | 9.09 ± 0.65 | 0.76 ± 0.02 | 9.19 ± 0.77 | 0.75 ± 0.02 | 8.24 \(\varvec{\pm }\) 0.68 | 0.78 \(\varvec{\pm }\) 0.02 | |