Before revision:  We found that both  negative cross-entropy and  Kullback-Leibler divergence play a crucial role in constructing explainable latent space and the variability of the generated samples from our proposed model depends on a specific subspace, called `activated latent subspace'.
After revision:  We found that both negative cross-entropy and Kullback-Leibler divergence play a crucial role in constructing explainable latent space and the variability of generated samples from our proposed model depends on a specific subspace, called `activated latent subspace'.