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State of the art deep generative networks are capable of producing images with such incredible realism that they can be suspected of memorizing training images. It is why it is not uncommon to include visualizations of training set nearest…

Machine Learning · Computer Science 2019-01-14 Ryan Webster , Julien Rabin , Loic Simon , Frederic Jurie

Here, we explore the low-level statistics of images generated by state-of-the-art deep generative models. First, Variational auto-encoder (VAE~\cite{kingma2013auto}), Wasserstein generative adversarial network…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Yu Zeng , Huchuan Lu , Ali Borji

We present a new generative autoencoder model with dual contradistinctive losses to improve generative autoencoder that performs simultaneous inference (reconstruction) and synthesis (sampling). Our model, named dual contradistinctive…

Computer Vision and Pattern Recognition · Computer Science 2020-11-23 Gaurav Parmar , Dacheng Li , Kwonjoon Lee , Zhuowen Tu

Generative adversarial networks (GANs) are a machine learning framework comprising a generative model for sampling from a target distribution and a discriminative model for evaluating the proximity of a sample to the target distribution.…

Quantum Physics · Physics 2021-07-22 Daniel Herr , Benjamin Obert , Matthias Rosenkranz

Deep learning based generative adversarial networks (GAN) can effectively perform image reconstruction with under-sampled MR data. In general, a large number of training samples are required to improve the reconstruction performance of a…

Image and Video Processing · Electrical Eng. & Systems 2021-05-19 Jun Lv , Guangyuan Li , Xiangrong Tong , Weibo Chen , Jiahao Huang , Chengyan Wang , Guang Yang

Missing data persists as a major barrier to data analysis across numerous applications. Recently, deep generative models have been used for imputation of missing data, motivated by their ability to capture highly non-linear and complex…

Machine Learning · Statistics 2022-10-03 Breeshey Roskams-Hieter , Jude Wells , Sara Wade

Recent accelerated MRI reconstruction models have used Deep Neural Networks (DNNs) to reconstruct relatively high-quality images from highly undersampled k-space data, enabling much faster MRI scanning. However, these techniques sometimes…

Image and Video Processing · Electrical Eng. & Systems 2021-04-12 Itzik Malkiel , Sangtae Ahn , Valentina Taviani , Anne Menini , Lior Wolf , Christopher J. Hardy

In this paper, we introduce a new CT image denoising method based on the generative adversarial network (GAN) with Wasserstein distance and perceptual similarity. The Wasserstein distance is a key concept of the optimal transform theory,…

Computer Vision and Pattern Recognition · Computer Science 2018-07-17 Qingsong Yang , Pingkun Yan , Yanbo Zhang , Hengyong Yu , Yongyi Shi , Xuanqin Mou , Mannudeep K. Kalra , Ge Wang

Generative Adversarial Nets (GANs) and Variational Auto-Encoders (VAEs) provide impressive image generations from Gaussian white noise, but the underlying mathematics are not well understood. We compute deep convolutional network generators…

Machine Learning · Computer Science 2018-05-18 Tomás Angles , Stéphane Mallat

One of the main challenges in the parametrization of geological models is the ability to capture complex geological structures often observed in the subsurface. In recent years, generative adversarial networks (GAN) were proposed as an…

Machine Learning · Statistics 2019-04-10 Shing Chan , Ahmed H. Elsheikh

Generative modeling over natural images is one of the most fundamental machine learning problems. However, few modern generative models, including Wasserstein Generative Adversarial Nets (WGANs), are studied on manifold-valued images that…

Computer Vision and Pattern Recognition · Computer Science 2019-01-04 Zhiwu Huang , Jiqing Wu , Luc Van Gool

With the development of deep learning, the single super-resolution image reconstruction network models are becoming more and more complex. Small changes in hyperparameters of the models have a greater impact on model performance. In the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-14 Yibo Guo , Haidi Wang , Yiming Fan , Shunyao Li , Mingliang Xu

Generative models often incur the catastrophic forgetting problem when they are used to sequentially learning multiple tasks, i.e., lifelong generative learning. Although there are some endeavors to tackle this problem, they suffer from…

Machine Learning · Computer Science 2022-01-20 Libo Huang , Zhulin An , Xiang Zhi , Yongjun Xu

Generative Adversarial Networks (GANs) have brought about rapid progress towards generating photorealistic images. Yet the equitable allocation of their modeling capacity among subgroups has received less attention, which could lead to…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Ning Yu , Ke Li , Peng Zhou , Jitendra Malik , Larry Davis , Mario Fritz

Generative adversarial networks (GANs) are a widely used framework for learning generative models. Wasserstein GANs (WGANs), one of the most successful variants of GANs, require solving a minmax optimization problem to global optimality,…

Machine Learning · Computer Science 2020-07-03 Qi Lei , Jason D. Lee , Alexandros G. Dimakis , Constantinos Daskalakis

Deep generative models have achieved impressive success in recent years. Generative Adversarial Networks (GANs) and Variational Autoencoders (VAEs), as emerging families for generative model learning, have largely been considered as two…

Machine Learning · Computer Science 2018-07-12 Zhiting Hu , Zichao Yang , Ruslan Salakhutdinov , Eric P. Xing

Generative Adversarial Networks (GANs) are popular tools for generative modeling. The dynamics of their adversarial learning give rise to convergence pathologies during training such as mode and discriminator collapse. In machine learning,…

Artificial Intelligence · Computer Science 2020-08-04 Jamal Toutouh , Erik Hemberg , Una-May O'Reilly

Missing data are present in most real world problems and need careful handling to preserve the prediction accuracy and statistical consistency in the downstream analysis. As the gold standard of handling missing data, multiple imputation…

Machine Learning · Computer Science 2021-12-23 Zongyu Dai , Zhiqi Bu , Qi Long

This paper presents a novel method for accelerating path-planning tasks in unknown scenes with obstacles by utilizing Wasserstein Generative Adversarial Networks (WGANs) with Gradient Penalty (GP) to approximate the distribution of…

Robotics · Computer Science 2025-01-14 Jorge Ocampo Jimenez , Wael Suleiman

Generative Adversarial Networks (GANs) advance face synthesis through learning the underlying distribution of observed data. Despite the high-quality generated faces, some minority groups can be rarely generated from the trained models due…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Shuhan Tan , Yujun Shen , Bolei Zhou
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