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Generative adversarial networks (GANs) are emerging machine learning models for generating synthesized data similar to real data by jointly training a generator and a discriminator. In many applications, data and computational resources are…

机器学习 · 计算机科学 2021-07-20 Jinke Ren , Chonghe Liu , Guanding Yu , Dongning Guo

Medical image datasets frequently exhibit significant class imbalance, a challenge that is further amplified by the inherently limited sample sizes that characterize clinical imaging data. Using human embryo time-lapse imaging (TLI) as a…

图像与视频处理 · 电气工程与系统科学 2025-11-11 Tsung-Wei Pan , Chang-Hong Wu , Jung-Hua Wang , Ming-Jer Chen , Yu-Chiao Yi , Tsung-Hsien Lee

In Bitcoin entity classification, results are strongly conditioned by the ground-truth dataset, especially when applying supervised machine learning approaches. However, these ground-truth datasets are frequently affected by significant…

机器学习 · 计算机科学 2020-05-28 Francesco Zola , Jan Lukas Bruse , Xabier Etxeberria Barrio , Mikel Galar , Raul Orduna Urrutia

Generative Adversarial Networks (GANs) are a class of generative models used for various applications, but they have been known to suffer from the mode collapse problem, in which some modes of the target distribution are ignored by the…

计算机视觉与模式识别 · 计算机科学 2021-12-30 Karttikeya Mangalam , Rohin Garg

Generative Adversarial Networks (GANs) have made great progress in synthesizing realistic images in recent years. However, they are often trained on image datasets with either too few samples or too many classes belonging to different data…

机器学习 · 计算机科学 2020-10-16 Shichang Tang

Imbalanced regression arises when the target distribution is skewed, causing models to focus on dense regions and struggle with underrepresented (minority) samples. Despite its relevance across many applications, few methods have been…

机器学习 · 计算机科学 2025-08-05 Shayan Alahyari , Shiva Mehdipour Ghobadlou , Mike Domaratzki

We extend Generative Adversarial Networks (GANs) to the semi-supervised context by forcing the discriminator network to output class labels. We train a generative model G and a discriminator D on a dataset with inputs belonging to one of N…

机器学习 · 统计学 2016-10-25 Augustus Odena

Generative adversarial networks (GANs), a class of distribution-learning methods based on a two-player game between a generator and a discriminator, can generally be formulated as a minmax problem based on the variational representation of…

机器学习 · 计算机科学 2022-06-20 Jeremiah Birrell , Markos A. Katsoulakis , Luc Rey-Bellet , Wei Zhu

This paper studies the problem of class-imbalanced graph classification, which aims at effectively classifying the graph categories in scenarios with imbalanced class distributions. While graph neural networks (GNNs) have achieved…

机器学习 · 计算机科学 2024-12-31 Wei Ju , Zhengyang Mao , Siyu Yi , Yifang Qin , Yiyang Gu , Zhiping Xiao , Jianhao Shen , Ziyue Qiao , Ming Zhang

We propose a new algorithm for training generative adversarial networks that jointly learns latent codes for both identities (e.g. individual humans) and observations (e.g. specific photographs). By fixing the identity portion of the latent…

机器学习 · 计算机科学 2018-02-26 Chris Donahue , Zachary C. Lipton , Akshay Balsubramani , Julian McAuley

Generative adversarial networks (GANs) with clustered latent spaces can perform conditional generation in a completely unsupervised manner. In the real world, the salient attributes of unlabeled data can be imbalanced. However, most of…

机器学习 · 计算机科学 2022-03-16 Uiwon Hwang , Heeseung Kim , Dahuin Jung , Hyemi Jang , Hyungyu Lee , Sungroh Yoon

Generative models, especially Generative Adversarial Networks (GANs), have received significant attention recently. However, it has been observed that in terms of some attributes, e.g. the number of simple geometric primitives in an image,…

机器学习 · 计算机科学 2019-10-08 Jinchen Xuan , Yunchang Yang , Ze Yang , Di He , Liwei Wang

We develop a novel method for training of GANs for unsupervised and class conditional generation of images, called Linear Discriminant GAN (LD-GAN). The discriminator of an LD-GAN is trained to maximize the linear separability between…

机器学习 · 统计学 2017-07-26 Zhun Sun , Mete Ozay , Takayuki Okatani

Recently, semi-supervised learning methods based on generative adversarial networks (GANs) have received much attention. Among them, two distinct approaches have achieved competitive results on a variety of benchmark datasets. Bad GAN…

机器学习 · 计算机科学 2019-05-20 Wenyuan Li , Zichen Wang , Jiayun Li , Jennifer Polson , William Speier , Corey Arnold

Most deep learning classification studies assume clean data. However, when dealing with the real world data, we encounter three problems such as 1) missing data, 2) class imbalance, and 3) missing label problems. These problems undermine…

机器学习 · 计算机科学 2019-05-29 Uiwon Hwang , Dahuin Jung , Sungroh Yoon

Generative Adversarial Networks (GANs) produce impressive results on unconditional image generation when powered with large-scale image datasets. Yet generated images are still easy to spot especially on datasets with high variance (e.g.…

计算机视觉与模式识别 · 计算机科学 2022-03-21 Ning Yu , Guilin Liu , Aysegul Dundar , Andrew Tao , Bryan Catanzaro , Larry Davis , Mario Fritz

As a kind of generative self-supervised learning methods, generative adversarial nets have been widely studied in the field of anomaly detection. However, the representation learning ability of the generator is limited since it pays too…

计算机视觉与模式识别 · 计算机科学 2021-07-28 Xuan Xia , Xizhou Pan , Xing He , Jingfei Zhang , Ning Ding , Lin Ma

In this study, we rediscovered the framework of generative adversarial networks (GANs) as a solver for calibration problems without data correspondence. When data correspondence is not present or loosely established, the calibration problem…

机器人学 · 计算机科学 2024-08-13 Ilkwon Hong , Junhyoung Ha

Generative Adversarial Networks (GANs) are a recent advancement in unsupervised machine learning. They are a cat-and-mouse game between two neural networks: [1] a discriminator network which learns to validate whether a sample is real or…

宇宙学与河外天体物理 · 物理学 2020-06-23 Olivia Curtis , Tereasa G. Brainerd

Exploiting learning algorithms under scarce data regimes is a limitation and a reality of the medical imaging field. In an attempt to mitigate the problem, we propose a data augmentation protocol based on generative adversarial networks. We…

图像与视频处理 · 电气工程与系统科学 2021-03-30 Ahmad B Qasim , Ivan Ezhov , Suprosanna Shit , Oliver Schoppe , Johannes C Paetzold , Anjany Sekuboyina , Florian Kofler , Jana Lipkova , Hongwei Li , Bjoern Menze
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