mlp_hidden_size: [600]          # (list of int) The MLP hidden layer.
latent_dimension: 128           # (int) The latent dimension of auto-encoder.
dropout_prob: 0.5               # (float) The drop out probability of input.  
anneal_cap: 0.2                 # (float) The hyper parameter of the weight of KL loss. 
total_anneal_steps: 200000      # (int) The maximum steps of anneal update.
