Deli-Fisher GAN: Stable and Efficient Image Generation With Structured Latent Generative Space

Boli Fang, Chuck Jia, Miao Jiang, Dhawal Chaturvedi

Abstract: Generative Adversarial Networks (GANs) are powerful tools for realistic image generation. However, a major drawback of GANs is that they are especially hard to train, often requiring large amounts of data and long training time. In this paper we propose the Deli-Fisher GAN, a GAN that generates photo-realistic images by enforcing structure on the latent generative space using similar approaches in \cite{deligan}. The structure of the latent space we consider in this paper is modeled as a mixture of Gaussians, whose parameters are learned in the training process. Furthermore, to improve stability and efficiency, we use the Fisher Integral Probability Metric as the divergence measure in our GAN model, instead of the Jensen-Shannon divergence. We show by experiments that the Deli-Fisher GAN performs better than DCGAN, WGAN, and the Fisher GAN as measured by inception score.

Keywords: Generative Adversarial Networks, Structured Latent Space, Stable Training

TL;DR: This paper proposes a new Generative Adversarial Network that is more stable, more efficient, and produces better images than those of status-quo