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In real-world scenarios, where knowledge distributions exhibit long-tail. Humans manage to master knowledge uniformly across imbalanced distributions, a feat attributed to their diligent practices of reviewing, summarizing, and correcting…

计算机视觉与模式识别 · 计算机科学 2024-09-16 Qihao Zhao , Yalun Dai , Shen Lin , Wei Hu , Fan Zhang , Jun Liu

The success of self-supervised learning (SSL) has mostly been attributed to the availability of unlabeled yet large-scale datasets. However, in a specialized domain such as medical imaging which is a lot different from natural images, the…

计算机视觉与模式识别 · 计算机科学 2023-06-30 Soumitri Chattopadhyay , Soham Ganguly , Sreejit Chaudhury , Sayan Nag , Samiran Chattopadhyay

Semi-supervised learning (SSL) methods effectively leverage unlabeled data to improve model generalization. However, SSL models often underperform in open-set scenarios, where unlabeled data contain outliers from novel categories that do…

计算机视觉与模式识别 · 计算机科学 2023-11-20 Yue Fan , Anna Kukleva , Dengxin Dai , Bernt Schiele

Self-supervised learning (SSL) has shown remarkable data representation capabilities across a wide range of datasets. However, when applied to real-world datasets with long-tailed distributions, performance on multiple downstream tasks…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Haowen Xiao , Guanghui Liu , Xinyi Gao , Yang Li , Fengmao Lv , Jielei Chu

Early cancer detection is crucial for prognosis, but many cancer types lack large labelled datasets required for developing deep learning models. This paper investigates self-supervised learning (SSL) as an alternative to the standard…

图像与视频处理 · 电气工程与系统科学 2024-11-27 Hamish Haggerty , Rohitash Chandra

Long-tailed instance segmentation is a challenging task due to the extreme imbalance of training samples among classes. It causes severe biases of the head classes (with majority samples) against the tailed ones. This renders "how to…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Yin-Yin He , Peizhen Zhang , Xiu-Shen Wei , Xiangyu Zhang , Jian Sun

Self-supervised learning is emerging in fine-grained visual recognition with promising results. However, existing self-supervised learning methods are often susceptible to irrelevant patterns in self-supervised tasks and lack the capability…

计算机视觉与模式识别 · 计算机科学 2024-12-03 ShuaiHeng Li , Qing Cai , Fan Zhang , Menghuan Zhang , Yangyang Shu , Zhi Liu , Huafeng Li , Lingqiao Liu

Self-supervised learning (SSL) has achieved remarkable performance in various medical imaging tasks by dint of priors from massive unlabelled data. However, regarding a specific downstream task, there is still a lack of an instruction book…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Chuyan Zhang , Yun Gu

Self-supervised learning (SSL) excels at finding general-purpose latent representations from complex data, yet lacks a unifying theoretical framework that explains the diverse existing methods and guides the design of new ones. We cast SSL…

机器学习 · 计算机科学 2026-05-28 Fabian A Mikulasch , Friedemann Zenke

Real-world data often exhibits a long-tailed distribution, in which head classes occupy most of the data, while tail classes only have very few samples. Models trained on long-tailed datasets have poor adaptability to tail classes and the…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Qiong Chen , Tianlin Huang , Geren Zhu , Enlu Lin

Semi-supervised learning (SSL) provides a powerful framework for leveraging unlabeled data when labels are limited or expensive to obtain. SSL algorithms based on deep neural networks have recently proven successful on standard benchmark…

机器学习 · 计算机科学 2019-06-18 Avital Oliver , Augustus Odena , Colin Raffel , Ekin D. Cubuk , Ian J. Goodfellow

Scene Graph Generation (SGG) as a critical task in image understanding, facing the challenge of head-biased prediction caused by the long-tail distribution of predicates. However, current unbiased SGG methods can easily prioritize improving…

计算机视觉与模式识别 · 计算机科学 2023-08-24 Lei Wang , Zejian Yuan , Yao Lu , Badong Chen

Semi-supervised learning (SSL) has demonstrated its potential to improve the model accuracy for a variety of learning tasks when the high-quality supervised data is severely limited. Although it is often established that the average…

机器学习 · 计算机科学 2023-09-04 Zhaowei Zhu , Tianyi Luo , Yang Liu

As data volumes continue to grow, the labelling process increasingly becomes a bottleneck, creating demand for methods that leverage information from unlabelled data. Impressive results have been achieved in semi-supervised learning (SSL)…

机器学习 · 计算机科学 2020-07-07 Ivana Balažević , Carl Allen , Timothy Hospedales

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…

计算机视觉与模式识别 · 计算机科学 2023-09-15 Weide Liu , Zhonghua Wu , Yiming Wang , Henghui Ding , Fayao Liu , Jie Lin , Guosheng Lin

Person search unifies person detection and person re-identification (Re-ID) to locate query persons from the panoramic gallery images. One major challenge comes from the imbalanced long-tail person identity distributions, which prevents the…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Chuang Liu , Hua Yang , Qin Zhou , Shibao Zheng

The cost of head pose labeling is the main challenge of improving the fine-grained Head Pose Estimation (HPE). Although Self-Supervised Learning (SSL) can be a solution to the lack of huge amounts of labeled data, its efficacy for…

计算机视觉与模式识别 · 计算机科学 2022-08-02 Mahdi Pourmirzaei , Farzaneh Esmaili , Ebrahim Mousavi , Sasan Karamizadeh , Seyedehsamaneh Shojaeilangari

Long-tailed semi-supervised learning poses a significant challenge in training models with limited labeled data exhibiting a long-tailed label distribution. Current state-of-the-art LTSSL approaches heavily rely on high-quality…

机器学习 · 计算机科学 2024-10-10 Zi-Hao Zhou , Siyuan Fang , Zi-Jing Zhou , Tong Wei , Yuanyu Wan , Min-Ling Zhang

Self-supervised Learning (SSL) including the mainstream contrastive learning has achieved great success in learning visual representations without data annotations. However, most methods mainly focus on the instance level information (\ie,…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Mingkai Zheng , Shan You , Fei Wang , Chen Qian , Changshui Zhang , Xiaogang Wang , Chang Xu

The long-tailed image classification task remains important in the development of deep neural networks as it explicitly deals with large imbalances in the class frequencies of the training data. While uncommon in engineered datasets, this…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Marc-Antoine Lavoie , Steven Waslander