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Score-based generative models (SGMs) are a recent breakthrough in generating fake images. SGMs are known to surpass other generative models, e.g., generative adversarial networks (GANs) and variational autoencoders (VAEs). Being inspired by…

Machine Learning · Computer Science 2022-06-20 Jayoung Kim , Chaejeong Lee , Yehjin Shin , Sewon Park , Minjung Kim , Noseong Park , Jihoon Cho

Automatic detection of shadow regions in an image is a difficult task due to the lack of prior information about the illumination source and the dynamic of the scene objects. To address this problem, in this paper, a deep-learning based…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Sorour Mohajerani , Parvaneh Saeedi

As an effective way to alleviate the burden of data annotation, semi-supervised learning (SSL) provides an attractive solution due to its ability to leverage both labeled and unlabeled data to build a predictive model. While significant…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Hai-Ming Xu , Lingqiao Liu , Hao Chen , Ehsan Abbasnejad , Rafael Felix

Nowadays, deep learning methods, especially the convolutional neural networks (CNNs), have shown impressive performance on extracting abstract and high-level features from the hyperspectral image. However, general training process of CNNs…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 Zhiqiang Gong , Ping Zhong , Weidong Hu

Dataset bias remains a significant barrier towards solving real world computer vision tasks. Though deep convolutional networks have proven to be a competitive approach for image classification, a question remains: have these models have…

Computer Vision and Pattern Recognition · Computer Science 2017-11-10 Judy Hoffman , Eric Tzeng , Jeff Donahue , Yangqing Jia , Kate Saenko , Trevor Darrell

This article investigates the critical issue of dataset bias in medical imaging, with a particular emphasis on racial disparities caused by uneven population distribution in dataset collection. Our analysis reveals that medical segmentation…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Yixiao Chen , Yue Yao , Ruining Yang , Md Zakir Hossain , Ashu Gupta , Tom Gedeon

Self-supervised pre-training of deep learning models with contrastive learning is a widely used technique in image analysis. Current findings indicate a strong potential for contrastive pre-training on medical images. However, further…

Image and Video Processing · Electrical Eng. & Systems 2024-10-21 Daniel Wolf , Tristan Payer , Catharina Silvia Lisson , Christoph Gerhard Lisson , Meinrad Beer , Michael Götz , Timo Ropinski

Real-world classification domains, such as medicine, health and safety, and finance, often exhibit imbalanced class priors and have asynchronous misclassification costs. In such cases, the classification model must achieve a high recall…

Machine Learning · Computer Science 2021-05-11 Michał Koziarski , Colin Bellinger , Michał Woźniak

Urban datasets such as citizen transportation modes often contain disproportionately distributed classes, posing significant challenges to the classification of under-represented samples using data-driven models. In the literature, various…

Machine Learning · Computer Science 2025-04-15 Guang An Ooi , Shehab Ahmed

Sparse learning has been widely studied to capture critical information from enormous data sources in the filed of system identification. Often, it is essential to understand internal working mechanisms of unknown systems (e.g. biological…

Signal Processing · Electrical Eng. & Systems 2020-08-11 Junlin Li , Wei Zhou , Cheng Cheng

CNNs are now prevalent as the primary choice for most machine vision problems due to their superior rate of classification and the availability of user-friendly libraries. These networks effortlessly identify and select features in a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Sai Teja Erukude

It is known that humans display "shape bias" when classifying new items, i.e., they prefer to categorize objects based on their shape rather than color. Convolutional Neural Networks (CNNs) are also designed to take into account the spatial…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Hossein Hosseini , Baicen Xiao , Mayoore Jaiswal , Radha Poovendran

Learning with noisy labels has gained increasing attention because the inevitable imperfect labels in real-world scenarios can substantially hurt the deep model performance. Recent studies tend to regard low-loss samples as clean ones and…

Machine Learning · Computer Science 2024-02-20 Huafeng Liu , Mengmeng Sheng , Zeren Sun , Yazhou Yao , Xian-Sheng Hua , Heng-Tao Shen

Learning with noisy labels (LNL) has been extensively studied, with existing approaches typically following a framework that alternates between clean sample selection and semi-supervised learning (SSL). However, this approach has a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Qing Miao , Xiaohe Wu , Chao Xu , Yanli Ji , Wangmeng Zuo , Yiwen Guo , Zhaopeng Meng

We propose a semi-supervised learning approach for video classification, VideoSSL, using convolutional neural networks (CNN). Like other computer vision tasks, existing supervised video classification methods demand a large amount of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Longlong Jing , Toufiq Parag , Zhe Wu , Yingli Tian , Hongcheng Wang

Semi-supervised learning (SSL) is an important theme in machine learning, in which we have a few labeled samples and many unlabeled samples. In this paper, for SSL in a regression problem, we consider a method of incorporating information…

Machine Learning · Computer Science 2024-11-20 Katsuyuki Hagiwara

Bayesian inference for inverse problems hinges critically on the choice of priors. In the absence of specific prior information, population-level distributions can serve as effective priors for parameters of interest. With the advent of…

Instrumentation and Methods for Astrophysics · Physics 2025-02-11 Gabriel Missael Barco , Alexandre Adam , Connor Stone , Yashar Hezaveh , Laurence Perreault-Levasseur

We study efficient deep learning training algorithms that process received wireless signals, if a test Signal to Noise Ratio (SNR) estimate is available. We focus on two tasks that facilitate source identification: 1- Identifying the…

Machine Learning · Computer Science 2020-04-21 Xingchen Wang , Shengtai Ju , Xiwen Zhang , Sharan Ramjee , Aly El Gamal

Ensemble technique and under-sampling technique are both effective tools used for imbalanced dataset classification problems. In this paper, a novel ensemble method combining the advantages of both ensemble learning for biasing classifiers…

Machine Learning · Computer Science 2025-02-05 Jinyan Li , Yaoyang Wu , Simon Fong , Antonio J. Tallón-Ballesteros , Xin-she Yang , Sabah Mohammed , Feng Wu

Session-based recommendation (SBR) problem, which focuses on next-item prediction for anonymous users, has received increasingly more attention from researchers. Existing graph-based SBR methods all lack the ability to differentiate between…

Information Retrieval · Computer Science 2023-02-09 Yuan Cao , Xudong Zhang , Fan Zhang , Feifei Kou , Josiah Poon , Xiongnan Jin , Yongheng Wang , Jinpeng Chen