Generative neural samplers are probabilistic models that implement sampling using feedforward neural networks: they take a random input vector and produce a sample from a probability distribution defined by the network weights. These models are expressive and allow efficient computation of samples and derivatives, but cannot be used for computing likelihoods or for marginalization. The generativeadversarial training method allows to train such models through the use of an auxiliary discriminative neural network. We show that the generative-adversarial approach is a special case of an existing more general variational divergence estimation approach. We show that any f -divergence can be used for training generative neural samplers. We discuss the benefits of various choices of divergence functions on training complexity and the quality of the obtained generative models.
Authors of REF have shown that the generative-adversarial approach in GAN is a special case of an existing more general variational divergence estimation approach, and that any fdivergence can be used for training generative neural samplers.
f-GAN: Training Generative Neural Samplers using Variational Divergence Minimization
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