Fig. 9:

Visualization of attention weights using different $G_b\left(\cdot ,{\theta }_w\right)$ structures. Attention weights are shown in red, indicating the importance of different parts of the scalogram in the task of GA estimation. We tested three structures: a) $\text{CNN}+\text{GRU}$ and time attention structure. b) Time attention using just CNN network and c) CNN network and frequency attention.