"VARIATIONAL DISCRIMINATOR BOTTLENECK: IMPROVING IMITATION LEARNING, INVERSE RL, AND GANS BY CONSTRAINING INFORMATION FLOW" (arxiv -> https://arxiv.org/pdf/1810.00821.pdf)
PyTorch Implementation https://github.com/akanimax/Variational_Discriminator_Bottleneck
"GAN-QP: A Novel GAN Framework without Gradient Vanishing and Lipschitz Constraint" https://arxiv.org/pdf/1811.07296.pdf