Table 5 Training and validation time complexity comparison between spatial-frequency- sequential features and spatial-frequency features with respect to “Dataset 2a Subject 7” and “Dataset 2b Subject 8”
Datasets and subjects | Spatial-frequency-sequential relationships | Spatial-frequency features | |||
|---|---|---|---|---|---|
LSTM-RNN | GRU-RNN | CNN | SVM-linear | ||
Training time | “Dataset 2a S7” | 272.26 | 214.34 | 478.08 | 8.19 |
complexity (/s) | “Dataset 2b S8” | 169.80 | 148.11 | 342.00 | 22.83 |
Validation time | “Dataset 2a S7” | 1.89 | 1.49 | 3.32 | 2.01 |
complexity (/s) | “Dataset 2b S8” | 3.40 | 2.96 | 6.84 | 4.17 |