Generative adversary networks (GANs) suffer from training pathologies such as
instability and mode collapse. These pathologies mainly arise from a lack of
diversity in their adversarial interactions. Evolutionary generative
adversarial networks apply the principles of evolutionary computation to
mitigate these problems. We hybridize two of these approaches that promote
training diversity. One, E-GAN, at each batch, injects mutation diversity by
training the (replicated) generator with three independent objective functions
then selecting the resulting best performing generator for the next batch. The
other, Lipizzaner, injects population diversity by training a two-dimensional
grid of GANs with a distributed evolutionary algorithm that includes neighbor
exchanges of additional training adversaries, performance based selection and
population-based hyper-parameter tuning. We propose to combine mutation and
population approaches to diversity improvement. We contribute a superior
evolutionary GANs training method, Mustangs, that eliminates the single loss
function used across Lipizzaner's grid. Instead, each training round, a loss
function is selected with equal probability, from among the three E-GAN uses.
Experimental analyses on standard benchmarks, MNIST and CelebA, demonstrate
that Mustangs provides a statistically faster training method resulting in more
accurate networks.

本文探讨了对生成对抗网络中出现的不稳定性和模态崩溃问题进行改进的方法，通过引入进化计算的原理，将两种促进训练多样性的方法（E-GAN 和 Lipizzaner）进行混合，提出了一种名为 Mustangs 的进化 GAN 训练方法，该方法通过结合了多样性提升的变异和种群方法，实现了更准确更快速地训练 GAN 模型。

空间进化生成对抗网络

Spatial Evolutionary Generative Adversarial Networks

Generative adversary networks (GANs) have recently led to highly realistic
image synthesis results. In this work, we describe a new method to expose
GAN-synthesized images using the locations of the facial landmark points. Our
method is based on the observations that the facial parts configuration
generated by GAN models are different from those of the real faces, due to the
lack of global constraints. We perform experiments demonstrating this
phenomenon, and show that an SVM classifier trained using the locations of
facial landmark points is sufficient to achieve good classification performance
for GAN-synthesized faces.

本文提出了一种基于面部标记点位置的新方法来揭示生成式对抗网络 (GAN) 合成图像的不同之处，并通过实验证明了 SVM 分类器使用面部标记点位置的效果可用于对 GAN 合成的面部进行分类。