Title
Towards Understanding the Dynamics of Generative Adversarial Networks.
Abstract
Generative Adversarial Networks (GANs) have recently been proposed as a promising avenue towards learning generative models with deep neural networks. While GANs have demonstrated state-of-the-art performance on multiple vision tasks, their learning dynamics are not yet well understood, both in theory and in practice. To address this issue, we take a first step towards a rigorous study of GAN dynamics. We propose a simple model that exhibits several of the common problematic convergence behaviors (e.g., vanishing gradient, mode collapse, diverging or oscillatory behavior) and still allows us to establish the first convergence bounds for parametric GAN dynamics. We find an interesting dichotomy: a GAN with an optimal discriminator provably converges, while a first order approximation of the discriminator leads to unstable GAN dynamics and mode collapse. Our model and analysis point to a specific challenge in practical GAN training that we call discriminator collapse.
Year
Venue
Field
2017
arXiv: Learning
Convergence (routing),Discriminator,Learning dynamics,Parametric statistics,Orders of approximation,Artificial intelligence,Generative grammar,Deep neural networks,Mathematics,Adversarial system
DocType
Volume
Citations 
Journal
abs/1706.09884
11
PageRank 
References 
Authors
0.73
7
4
Name
Order
Citations
PageRank
Jerry Li122922.67
Aleksander Mądry296145.38
John Peebles3536.91
Ludwig Schmidt468431.03