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Sequential learning of tasks using gradient descent leads to an unremitting decline in the accuracy of tasks for which training data is no longer available, termed catastrophic forgetting. Generative models have been explored as a means to…

Machine Learning · Computer Science 2020-09-30 Amanda Rios , Laurent Itti

Image generation has raised tremendous attention in both academic and industrial areas, especially for the conditional and target-oriented image generation, such as criminal portrait and fashion design. Although the current studies have…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Songyao Jiang , Hongfu Liu , Yue Wu , Yun Fu

The tabular form constitutes the standard way of representing data in relational database systems and spreadsheets. But, similarly to other forms, tabular data suffers from class imbalance, a problem that causes serious performance…

Machine Learning · Computer Science 2025-08-04 Leonidas Akritidis , Panayiotis Bozanis

With the development of convolutional neural network, deep learning has shown its success for retinal disease detection from optical coherence tomography (OCT) images. However, deep learning often relies on large scale labelled data for…

Computer Vision and Pattern Recognition · Computer Science 2020-02-04 Kang Zhou , Shenghua Gao , Jun Cheng , Zaiwang Gu , Huazhu Fu , Zhi Tu , Jianlong Yang , Yitian Zhao , Jiang Liu

Knowledge representation learning aims at modeling knowledge graph by encoding entities and relations into a low dimensional space. Most of the traditional works for knowledge embedding need negative sampling to minimize a margin-based…

Artificial Intelligence · Computer Science 2018-10-01 Peifeng Wang , Shuangyin Li , Rong pan

Identifying anomalies refers to detecting samples that do not resemble the training data distribution. Many generative models have been used to find anomalies, and among them, generative adversarial network (GAN)-based approaches are…

Machine Learning · Computer Science 2022-01-03 Laya Rafiee Sevyeri , Thomas Fevens

A promise of Generative Adversarial Networks (GANs) is to provide cheap photorealistic data for training and validating AI models in autonomous driving. Despite their huge success, their performance on complex images featuring multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 George Eskandar , Youssef Farag , Tarun Yenamandra , Daniel Cremers , Karim Guirguis , Bin Yang

Synthesizing high quality saliency maps from noisy images is a challenging problem in computer vision and has many practical applications. Samples generated by existing techniques for saliency detection cannot handle the noise perturbations…

Computer Vision and Pattern Recognition · Computer Science 2019-04-03 Prerana Mukherjee , Manoj Sharma , Megh Makwana , Ajay Pratap Singh , Avinash Upadhyay , Akkshita Trivedi , Brejesh Lall , Santanu Chaudhury

Human beings are able to understand objectives and learn by simply observing others perform a task. Imitation learning methods aim to replicate such capabilities, however, they generally depend on access to a full set of optimal states and…

Machine Learning · Computer Science 2021-03-10 Edoardo Cetin , Oya Celiktutan

Machine learning models often encounter samples that are diverged from the training distribution. Failure to recognize an out-of-distribution (OOD) sample, and consequently assign that sample to an in-class label significantly compromises…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Mohammadreza Salehi , Hossein Mirzaei , Dan Hendrycks , Yixuan Li , Mohammad Hossein Rohban , Mohammad Sabokrou

We focus on the challenge of out-of-distribution (OOD) detection in deep learning models, a crucial aspect in ensuring reliability. Despite considerable effort, the problem remains significantly challenging in deep learning models due to…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Yunhao Ge , Jie Ren , Jiaping Zhao , Kaifeng Chen , Andrew Gallagher , Laurent Itti , Balaji Lakshminarayanan

Deep generative models provide powerful tools for distributions over complicated manifolds, such as those of natural images. But many of these methods, including generative adversarial networks (GANs), can be difficult to train, in part…

Machine Learning · Statistics 2017-11-08 Akash Srivastava , Lazar Valkov , Chris Russell , Michael U. Gutmann , Charles Sutton

Equivariant neural networks require explicit knowledge of the symmetry group. Automatic symmetry discovery methods aim to relax this constraint and learn invariance and equivariance from data. However, existing symmetry discovery methods…

Machine Learning · Computer Science 2024-08-14 Jianke Yang , Nima Dehmamy , Robin Walters , Rose Yu

The latent code of the recent popular model StyleGAN has learned disentangled representations thanks to the multi-layer style-based generator. Embedding a given image back to the latent space of StyleGAN enables wide interesting semantic…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Shanyan Guan , Ying Tai , Bingbing Ni , Feida Zhu , Feiyue Huang , Xiaokang Yang

Inferring the latent variable generating a given test sample is a challenging problem in Generative Adversarial Networks (GANs). In this paper, we propose InvGAN - a novel framework for solving the inference problem in GANs, which involves…

Machine Learning · Computer Science 2019-12-02 Wei-An Lin , Yogesh Balaji , Pouya Samangouei , Rama Chellappa

We present a two-stage framework for deep one-class classification. We first learn self-supervised representations from one-class data, and then build one-class classifiers on learned representations. The framework not only allows to learn…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Kihyuk Sohn , Chun-Liang Li , Jinsung Yoon , Minho Jin , Tomas Pfister

Deep neural networks have played an important role in automatic sleep stage classification because of their strong representation and in-model feature transformation abilities. However, class imbalance and individual heterogeneity which…

Signal Processing · Electrical Eng. & Systems 2023-07-12 Xuewei Cheng , Ke Huang , Yi Zou , Shujie Ma

Deep generative models are proficient in generating realistic data but struggle with producing rare samples in low density regions due to their scarcity of training datasets and the mode collapse problem. While recent methods aim to improve…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Subeen Lee , Jiyeon Han , Soyeon Kim , Jaesik Choi

We propose a novel deep learning framework based on Vision Transformers (ViT) for one-class classification. The core idea is to use zero-centered Gaussian noise as a pseudo-negative class for latent space representation and then train the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Prerana Mukherjee , Chandan Kumar Roy , Swalpa Kumar Roy

Intelligent Internet of Things (IoT) systems based on deep neural networks (DNNs) have been widely deployed in the real world. However, DNNs are found to be vulnerable to adversarial examples, which raises people's concerns about…

Machine Learning · Computer Science 2021-11-22 Tao Bai , Jun Zhao , Jinlin Zhu , Shoudong Han , Jiefeng Chen , Bo Li , Alex Kot