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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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Journal ArticleDOI

CKD: Cross-Task Knowledge Distillation for Text-to-Image Synthesis

TL;DR: A multi-stage knowledge distillation paradigm to decompose the distillation process into multiple stages is designed, effective to approximate the distributions of real image and understand textual information for T2IS, which can improve the visual quality and semantic consistency of synthetic images.
Book ChapterDOI

Conditional Infilling GANs for Data Augmentation in Mammogram Classification

TL;DR: This work trains a class-conditional GAN to perform contextual in-filling, which is then used to synthesize lesions onto healthy screening mammograms and shows that GANs are capable of generating high-resolution synthetic mammogram patches.
Posted Content

Adversarial Sampling for Active Learning

TL;DR: ASAL as mentioned in this paper is a GAN based active learning method that generates high entropy samples instead of directly annotating the synthetic samples, instead of searching similar samples from the pool and includes them for training, hence the quality of new samples is high and annotations are reliable.
Posted Content

Small Sample Learning in Big Data Era.

Jun Shu, +2 more
- 14 Aug 2018 - 
TL;DR: A survey to comprehensively introduce the current techniques proposed on Small Sample Learning and some neuroscience evidences are provided to clarify the rationality of the entire SSL regime, and the relationship with human learning process.
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Adversarial score matching and improved sampling for image generation

TL;DR: This work proposes two improvements to DSM-ALS: 1) Consistent Annealed Sampling as a more stable alternative to Annealed Langevin Sampling, and 2) a hybrid training formulation, composed of both Denoising Score Matching and adversarial objectives.
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.
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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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