Specifies an evaluation function adapted to the variational autoencoder. It combines a base reconstruction error and the Kullback-Leibler divergence between the learned distribution and the true latent posterior.
loss_variational(reconstruction_loss)Another loss to be used as reconstruction error (e.g. "binary_crossentropy")
A "ruta_loss" object
\link{autoencoder_variational}
Other loss functions: 
contraction(),
correntropy()