Google Research

Improved generator objectives for GANs

NIPS Workshop on Adversarial Learning (2016)


We present a new framework to understand GAN training as alternating density ratio estimation with divergence minimization. This provides a new interpretation for the GAN generator objective used in practice and explains the problem of poor sample diversity. Furthermore, we derive a family of objectives that target arbitrary f-divergences without minimizing a lower bound, and use them to train generative image models that target either improved sample quality or sample diversity.

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