Table 5.
Results for the different features by waves, and their combinations. Values in bold represent the best results for KNN and RF, for valence and arousal. Grey rows represent the selected features.
| Arousal | Valence | ||||||
|---|---|---|---|---|---|---|---|
| Reg. | Waves & Features | PCC | MAE | RMSE | PCC | MAE | RMSE |
| KNN | 0.505 | 0.147 | 0.252 | 0.451 | 0.167 | 0.281 | |
| 0.621 | 0.114 | 0.221 | 0.597 | 0.126 | 0.241 | ||
| 0.535 | 0.139 | 0.244 | 0.528 | 0.149 | 0.260 | ||
| 0.689 | 0.093 | 0.199 | 0.658 | 0.105 | 0.221 | ||
| 0.640 | 0.109 | 0.215 | 0.603 | 0.122 | 0.239 | ||
| 0.672 | 0.099 | 0.205 | 0.652 | 0.110 | 0.224 | ||
| 0.722 | 0.084 | 0.189 | 0.691 | 0.095 | 0.211 | ||
| 0.430 | 0.178 | 0.270 | 0.774 | 0.115 | 0.178 | ||
| 0.743 | 0.078 | 0.182 | 0.750 | 0.082 | 0.189 | ||
| RF | 0.543 | 0.173 | 0.215 | 0.505 | 0.193 | 0.234 | |
| 0.669 | 0.150 | 0.192 | 0.661 | 0.161 | 0.204 | ||
| 0.719 | 0.138 | 0.180 | 0.717 | 0.145 | 0.190 | ||
| 0.722 | 0.138 | 0.180 | 0.719 | 0.147 | 0.190 | ||
| 0.642 | 0.159 | 0.198 | 0.901 | 0.097 | 0.126 | ||
| 0.748 | 0.136 | 0.175 | 0.845 | 0.119 | 0.155 | ||