Table 2.
Comparison of age prediction using NC LH data with 5-fold cross-validation by our method and comparison methods.
| Method | Dataset | R | P | MAE |
|---|---|---|---|---|
| CPM | View 1 | 0.45 | 1.08E-10 | 4.05 |
| View 2 | 0.67 | 2.02E-25 | 3.32 | |
| View 3 | 0.37 | 2.72E-07 | 4.25 | |
| View 4 | 0.39 | 3.66E-08 | 4.29 | |
| Averaged Views | 0.66 | 3.42E-24 | 3.40 | |
| SVR | View 1 | 0.45 | 3.55E-09 | 4.10 |
| View 2 | 0.70 | 2.29E-24 | 3.46 | |
| View 3 | 0.48 | 1.94E-10 | 4.09 | |
| View 4 | 0.06 | 4.34E-01 | 4.65 | |
| Averaged Views | 0.70 | 7.00E-24 | 3.38 | |
| Concatenated Views | 0.67 | 3.07E-21 | 3.72 | |
| SVR + RFE | View 1 | 0.28 | 1.17E-04 | 4.12 |
| View 2 | 0.69 | 1.78E-27 | 3.23 | |
| View 3 | 0.42 | 2.56E-09 | 3.97 | |
| View 4 | 0.15 | 4.74E-02 | 4.33 | |
| Averaged Views | 0.71 | 1.16E-29 | 3.10 | |
| Concatenated Views | 0.71 | 1.96E-29 | 3.09 | |
| RF | View 1 | 0.53 | 1.24E-14 | 3.84 |
| View 2 | 0.73 | 8.08E-32 | 3.11 | |
| View 3 | 0.35 | 7.28E-07 | 4.14 | |
| View 4 | 0.43 | 7.21E-10 | 4.14 | |
| Averaged Views | 0.74 | 8.10E-31 | 3.05 | |
| Concatenated Views | 0.74 | 4.82E-33 | 3.17 | |
| RF + RFE (ours) | View 1 | 0.53 | 4.05E-15 | 3.82 |
| View 2 | 0.73 | 1.90E-32 | 3.08 | |
| View 3 | 0.36 | 3.96E-07 | 4.14 | |
| View 4 | 0.44 | 3.81E-10 | 4.11 | |
| Averaged Views | 0.75 | 1.88E-35 | 2.92 | |
| Concatenated Views | 0.74 | 2.48E-33 | 3.03 |
R is the correlation between the predicted ages and the ground truth ages, and P is the p-value of their statistical difference. MAE denotes the mean absolute error between the predicted ages and the ground truth ages.