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Open AccessProceedings Article

Improved training of wasserstein GANs

TLDR
The authors proposed to penalize the norm of the gradient of the critic with respect to its input to improve the training stability of Wasserstein GANs and achieve stable training of a wide variety of GAN architectures with almost no hyperparameter tuning.
Abstract
Generative Adversarial Networks (GANs) are powerful generative models, but suffer from training instability. The recently proposed Wasserstein GAN (WGAN) makes progress toward stable training of GANs, but sometimes can still generate only poor samples or fail to converge. We find that these problems are often due to the use of weight clipping in WGAN to enforce a Lipschitz constraint on the critic, which can lead to undesired behavior. We propose an alternative to clipping weights: penalize the norm of gradient of the critic with respect to its input. Our proposed method performs better than standard WGAN and enables stable training of a wide variety of GAN architectures with almost no hyperparameter tuning, including 101-layer ResNets and language models with continuous generators. We also achieve high quality generations on CIFAR-10 and LSUN bedrooms.

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Citations
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Anomaly detection with variational quantum generative adversarial networks

TL;DR: This model replaces the generator of WGANs with a hybrid quantum–classical neural net and leaves the classical discriminative model unchanged, which means high-dimensional classical data only enters the classical model and need not be prepared in a quantum circuit.
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SCGAN: Saliency Map-Guided Colorization With Generative Adversarial Network

TL;DR: Experimental results show that SCGAN can generate more reasonable colorized images than state-of-the-art techniques and proposes a novel saliency map-based guidance method.
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Unsupervised Representation Disentanglement Using Cross Domain Features and Adversarial Learning in Variational Autoencoder Based Voice Conversion

TL;DR: This article extends the CDVAE-VC framework by incorporating the concept of adversarial learning, in order to further increase the degree of disentanglement, thereby improving the quality and similarity of converted speech.
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Lightweight and Privacy-Preserving Template Generation for Palm-Vein-Based Human Recognition

TL;DR: A wave atom transform (WAT)-based palm-vein recognition scheme that computes, maintains, and matches palm-vesin templates with less computational complexity and less storage requirements under a secure and privacy-preserving environment is proposed.
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Hierarchical Patch VAE-GAN: Generating Diverse Videos from a Single Sample

TL;DR: This work introduces a novel patch-based variational autoencoder (VAE) which allows for a much greater diversity in generation of videos, and produces diverse samples in both the image domain, and the more challenging video domain.
References
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Dissertation

Learning Multiple Layers of Features from Tiny Images

TL;DR: In this paper, the authors describe how to train a multi-layer generative model of natural images, using a dataset of millions of tiny colour images, described in the next section.
Journal ArticleDOI

Simple Statistical Gradient-Following Algorithms for Connectionist Reinforcement Learning

TL;DR: This article presents a general class of associative reinforcement learning algorithms for connectionist networks containing stochastic units that are shown to make weight adjustments in a direction that lies along the gradient of expected reinforcement in both immediate-reinforcement tasks and certain limited forms of delayed-reInforcement tasks, and they do this without explicitly computing gradient estimates.
Posted Content

Unsupervised Representation Learning with Deep Convolutional Generative Adversarial Networks

TL;DR: This work introduces a class of CNNs called deep convolutional generative adversarial networks (DCGANs), that have certain architectural constraints, and demonstrates that they are a strong candidate for unsupervised learning.
Posted Content

Improved Techniques for Training GANs

TL;DR: In this article, the authors present a variety of new architectural features and training procedures that apply to the generative adversarial networks (GANs) framework and achieve state-of-the-art results in semi-supervised classification on MNIST, CIFAR-10 and SVHN.
Proceedings Article

Categorical Reparameterization with Gumbel-Softmax

TL;DR: Gumbel-Softmax as mentioned in this paper replaces the non-differentiable samples from a categorical distribution with a differentiable sample from a novel Gumbel softmax distribution, which has the essential property that it can be smoothly annealed into the categorical distributions.
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