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Generative adversarial networks (GAN) approximate a target data distribution by jointly optimizing an objective function through a "two-player game" between a generator and a discriminator. Despite their empirical success, however, two very…

机器学习 · 计算机科学 2017-05-30 Shuang Liu , Olivier Bousquet , Kamalika Chaudhuri

Training generative adversarial networks is unstable in high-dimensions as the true data distribution tends to be concentrated in a small fraction of the ambient space. The discriminator is then quickly able to classify nearly all generated…

机器学习 · 计算机科学 2018-06-26 Behnam Neyshabur , Srinadh Bhojanapalli , Ayan Chakrabarti

Generative adversarial networks (GANs) are a novel approach to generative modelling, a task whose goal it is to learn a distribution of real data points. They have often proved difficult to train: GANs are unlike many techniques in machine…

机器学习 · 计算机科学 2018-07-02 Samuel A. Barnett

Generative adversarial networks (GANs) are a family of generative models that do not minimize a single training criterion. Unlike other generative models, the data distribution is learned via a game between a generator (the generative…

Generative adversarial networks (GANs) have been shown to produce realistic samples from high-dimensional distributions, but training them is considered hard. A possible explanation for training instabilities is the inherent imbalance…

We present a new autoencoder-type architecture that is trainable in an unsupervised mode, sustains both generation and inference, and has the quality of conditional and unconditional samples boosted by adversarial learning. Unlike previous…

计算机视觉与模式识别 · 计算机科学 2017-11-07 Dmitry Ulyanov , Andrea Vedaldi , Victor Lempitsky

Deep neural networks achieve unprecedented performance levels over many tasks and scale well with large quantities of data, but performance in the low-data regime and tasks like one shot learning still lags behind. While recent work…

计算机视觉与模式识别 · 计算机科学 2017-03-24 Akshay Mehrotra , Ambedkar Dukkipati

Generative adversarial nets (GANs) are a promising technique for modeling a distribution from samples. It is however well known that GAN training suffers from instability due to the nature of its maximin formulation. In this paper, we…

机器学习 · 计算机科学 2017-06-21 Yujia Li , Alexander Schwing , Kuan-Chieh Wang , Richard Zemel

We introduce a method to stabilize Generative Adversarial Networks (GANs) by defining the generator objective with respect to an unrolled optimization of the discriminator. This allows training to be adjusted between using the optimal…

机器学习 · 计算机科学 2017-05-16 Luke Metz , Ben Poole , David Pfau , Jascha Sohl-Dickstein

Generative Adversarial Networks (GANs) are widely used models to learn complex real-world distributions. In GANs, the training of the generator usually stops when the discriminator can no longer distinguish the generator's output from the…

机器学习 · 计算机科学 2021-02-19 Yuanzhi Li , Zehao Dou

Thanks to their ability to learn flexible data-driven losses, Generative Adversarial Networks (GANs) are an integral part of many semi- and weakly-supervised methods for medical image segmentation. GANs jointly optimise a generator and an…

计算机视觉与模式识别 · 计算机科学 2023-06-29 Gabriele Valvano , Andrea Leo , Sotirios A. Tsaftaris

Semi-supervised learning methods based on generative adversarial networks (GANs) obtained strong empirical results, but it is not clear 1) how the discriminator benefits from joint training with a generator, and 2) why good semi-supervised…

机器学习 · 计算机科学 2017-11-06 Zihang Dai , Zhilin Yang , Fan Yang , William W. Cohen , Ruslan Salakhutdinov

We present a novel method and analysis to train generative adversarial networks (GAN) in a stable manner. As shown in recent analysis, training is often undermined by the probability distribution of the data being zero on neighborhoods of…

计算机视觉与模式识别 · 计算机科学 2019-09-18 Simon Jenni , Paolo Favaro

We introduce a novel approach for training adversarial models by replacing the discriminator score with a bi-modal Gaussian distribution over the real/fake indicator variables. In order to do this, we train the Gaussian classifier to match…

机器学习 · 统计学 2018-08-21 Karan Grewal , R Devon Hjelm , Yoshua Bengio

Generative adversarial networks (GANs) are a class of generative models, known for producing accurate samples. The key feature of GANs is that there are two antagonistic neural networks: the generator and the discriminator. The main…

机器学习 · 计算机科学 2025-08-05 Barbara Franci , Sergio Grammatico

Generative adversarial training can be generally understood as minimizing certain moment matching loss defined by a set of discriminator functions, typically neural networks. The discriminator set should be large enough to be able to…

机器学习 · 计算机科学 2018-02-27 Pengchuan Zhang , Qiang Liu , Dengyong Zhou , Tao Xu , Xiaodong He

Conditional generative adversarial networks (cGANs) have demonstrated remarkable success due to their class-wise controllability and superior quality for complex generation tasks. Typical cGANs solve the joint distribution matching problem…

机器学习 · 计算机科学 2024-09-20 Kyeongbo Kong , Kyunghun Kim , Suk-Ju Kang

We propose a framework for adversarial training that relies on a sample rather than a single sample point as the fundamental unit of discrimination. Inspired by discrepancy measures and two-sample tests between probability distributions, we…

机器学习 · 计算机科学 2017-07-11 Chengtao Li , David Alvarez-Melis , Keyulu Xu , Stefanie Jegelka , Suvrit Sra

The impressive success of Generative Adversarial Networks (GANs) is often overshadowed by the difficulties in their training. Despite the continuous efforts and improvements, there are still open issues regarding their convergence…

机器学习 · 计算机科学 2018-11-08 Yannis Pantazis , Dipjyoti Paul , Michail Fasoulakis , Yannis Stylianou

Adversarial Optimization (AO) provides a reliable, practical way to match two implicitly defined distributions, one of which is usually represented by a sample of real data, and the other is defined by a generator. Typically, AO involves…

机器学习 · 计算机科学 2020-05-26 Maxim Borisyak , Tatiana Gaintseva , Andrey Ustyuzhanin
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