Figure 2.

Visualization of the latent variables of the model. There are six symmetrical layers denoted ${\eta }_1\text{to}{\eta }_6$ and one asymmetric layer denoted ${\eta }_A$. For asymmetric layers, z values of −2.0, −1.0, 0, 1.0, and 2.0 were used while for the asymmetric layer, z values have been reduced to −1.0, −0.5, 0, 0.5, and 1.0 for better interpretability.