Table 2 Classification accuracy for low vs high arousal/valence using DWT-based feature extraction using 32 EEG channels, proven with three classifiers and different signal segment sizes.
Segment (s) | Low vs. high arousal | Low vs. high valence | ||||
|---|---|---|---|---|---|---|
SVM | NB | kNN | SVM | NB | kNN | |
60 | 0.658 ± 0.23 | 0.629 ± 0.25 | 0.687 ± 0.23 | 0.571 ± 0.27 | 0.577 ± 0.28 | 0.645 ± 0.25 |
10 | 0.638 ± 0.15 | 0.605 ± 0.16 | 0.629 ± 0.13 | 0.614 ± 0.15 | 0.574 ± 0.17 | 0.605 ± 0.15 |
5 | 0.621 ± 0.13 | 0.599 ± 0.14 | 0.606 ± 0.19 | 0.608 ± 0.13 | 0.568 ± 0.15 | 0.600 ± 0.12 |
2 | 0.605 ± 0.11 | 0.586 ± 0.12 | 0.590 ± 0.09 | 0.584 ± 0.11 | 0.561 ± 0.13 | 0.574 ± 0.10 |