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The real-world data distribution is essentially long-tailed, which poses great challenge to the deep model. In this work, we propose a new method, Gradual Balanced Loss and Adaptive Feature Generator (GLAG) to alleviate imbalance. GLAG…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Zihan Zhang , Xiang Xiang

Active learning selects the most informative samples to exploit limited annotation budgets. Existing work follows a cumbersome pipeline that repeats the time-consuming model training and batch data selection multiple times. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Yichen Xie , Masayoshi Tomizuka , Wei Zhan

Long-tail recognition is challenging because it requires the model to learn good representations from tail categories and address imbalances across all categories. In this paper, we propose a novel generative and fine-tuning framework,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Qihao Zhao , Yalun Dai , Hao Li , Wei Hu , Fan Zhang , Jun Liu

We propose GradTail, an algorithm that uses gradients to improve model performance on the fly in the face of long-tailed training data distributions. Unlike conventional long-tail classifiers which operate on converged - and possibly…

Machine Learning · Computer Science 2022-01-20 Zhao Chen , Vincent Casser , Henrik Kretzschmar , Dragomir Anguelov

Long-tailed data bias decision boundaries toward head classes and degrade tail class accuracy. Diffusion-based generative augmentation address this problem by generating additional data, while head-to-tail transfer further mitigate the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Jiacheng Yang , Ruichi Zhang , Chikai Shang , Mengke Li , Xinyi Shang , Junlong Gao , Yonggang Zhang , Yang Lu

Training robust deep learning (DL) systems for medical image classification or segmentation is challenging due to limited images covering different disease types and severity. We propose an active learning (AL) framework to select most…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Dwarikanath Mahapatra , Behzad Bozorgtabar , Jean-Philippe Thiran , Mauricio Reyes

Active learning is perhaps most naturally posed as an online learning problem. However, prior active learning approaches with deep neural networks assume offline access to the entire dataset ahead of time. This paper proposes VeSSAL, a new…

Machine Learning · Computer Science 2023-06-08 Akanksha Saran , Safoora Yousefi , Akshay Krishnamurthy , John Langford , Jordan T. Ash

Active learning aims to reduce the labeling effort that is required to train algorithms by learning an acquisition function selecting the most relevant data for which a label should be requested from a large unlabeled data pool. Active…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Javad Zolfaghari Bengar , Joost van de Weijer , Laura Lopez Fuentes , Bogdan Raducanu

In the real-world setting, data often follows a long-tailed distribution, where head classes contain significantly more training samples than tail classes. Consequently, models trained on such data tend to be biased toward head classes. The…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Fan Zhang , Wei Qin , Weijieying Ren , Lei Wang , Zetong Chen , Richang Hong

Real-world data is extremely imbalanced and presents a long-tailed distribution, resulting in models that are biased towards classes with sufficient samples and perform poorly on rare classes. Recent methods propose to rebalance classes but…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Weiqi Li , Fan Lyu , Fanhua Shang , Liang Wan , Wei Feng

In training speech recognition systems, labeling audio clips can be expensive, and not all data is equally valuable. Active learning aims to label only the most informative samples to reduce cost. For speech recognition, confidence scores…

Computation and Language · Computer Science 2016-12-13 Jiaji Huang , Rewon Child , Vinay Rao , Hairong Liu , Sanjeev Satheesh , Adam Coates

We propose Disentanglement based Active Learning (DAL), a new active learning technique based on self-supervision which leverages the concept of disentanglement. Instead of requesting labels from human oracle, our method automatically…

Machine Learning · Computer Science 2021-09-28 Silpa Vadakkeeveetil Sreelatha , Adarsh Kappiyath , Sumitra S

Recent state-of-the-art active learning methods have mostly leveraged Generative Adversarial Networks (GAN) for sample acquisition; however, GAN is usually known to suffer from instability and sensitivity to hyper-parameters. In contrast to…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Jae Won Cho , Dong-Jin Kim , Yunjae Jung , In So Kweon

In this work, we address the challenging task of long-tailed image recognition. Previous long-tailed recognition methods commonly focus on the data augmentation or re-balancing strategy of the tail classes to give more attention to tail…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Weide Liu , Zhonghua Wu , Yiming Wang , Henghui Ding , Fayao Liu , Jie Lin , Guosheng Lin

Despite extensive research on training generative adversarial networks (GANs) with limited training data, learning to generate images from long-tailed training distributions remains fairly unexplored. In the presence of imbalanced…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Saeed Khorram , Mingqi Jiang , Mohamad Shahbazi , Mohamad H. Danesh , Li Fuxin

In this work, we tackle the challenging problem of long-tailed image recognition. Previous long-tailed recognition approaches mainly focus on data augmentation or re-balancing strategies for the tail classes to give them more attention…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Weide Liu , Zhonghua Wu , Yiming Wang , Henghui Ding , Fayao Liu , Jie Lin , Guosheng Lin

In an era of information explosion, recommendation systems play an important role in people's daily life by facilitating content exploration. It is known that user activeness, i.e., number of behaviors, tends to follow a long-tail…

Information Retrieval · Computer Science 2022-08-22 Zheqi Lv , Feng Wang , Shengyu Zhang , Kun Kuang , Hongxia Yang , Fei Wu

It is difficult to anticipate the myriad challenges that a predictive model will encounter once deployed. Common practice entails a reactive, cyclical approach: model deployment, data mining, and retraining. We instead develop a proactive…

Training robust deep learning (DL) systems for disease detection from medical images is challenging due to limited images covering different disease types and severity. The problem is especially acute, where there is a severe class…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Behzad Bozorgtabar , Dwarikanath Mahapatra , Hendrik von Teng , Alexander Pollinger , Lukas Ebner , Jean-Phillipe Thiran , Mauricio Reyes

Active learning (AL) strategies aim to train high-performance models with minimal labeling efforts, only selecting the most informative instances for annotation. Current approaches to evaluating data informativeness predominantly focus on…

Computer Vision and Pattern Recognition · Computer Science 2026-01-23 Zhixuan Liang , Xingyu Zeng , Rui Zhao , Ping Luo
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