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The long-tailed recognition (LTR) is the task of learning high-performance classifiers given extremely imbalanced training samples between categories. Most of the existing works address the problem by either enhancing the features of tail…

计算机视觉与模式识别 · 计算机科学 2023-04-12 Haixu Long , Xiaolin Zhang , Yanbin Liu , Zongtai Luo , Jianbo Liu

Various algorithms have been proposed to address the challenges posed by class-imbalanced learning from real-world data with long-tailed distributions. While these algorithms reduce prediction bias through rebalancing techniques, they often…

机器学习 · 计算机科学 2026-05-29 Hyuck Lee , Taemin Park , Heeyoung Kim

Deep neural networks are vulnerable to adversarial attacks, often leading to erroneous outputs. Adversarial training has been recognized as one of the most effective methods to counter such attacks. However, existing adversarial training…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Xinli Yue , Ningping Mou , Qian Wang , Lingchen Zhao

This paper proposes a new pipeline for long-tail (LT) recognition. Instead of re-weighting or re-sampling, we utilize the long-tailed dataset itself to generate a balanced proxy that can be optimized through cross-entropy (CE).…

计算机视觉与模式识别 · 计算机科学 2024-03-11 Jie Shao , Ke Zhu , Hanxiao Zhang , Jianxin Wu

Machine learning models fail to perform well on real-world applications when 1) the category distribution P(Y) of the training dataset suffers from long-tailed distribution and 2) the test data is drawn from different conditional…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Xiao Gu , Yao Guo , Zeju Li , Jianing Qiu , Qi Dou , Yuxuan Liu , Benny Lo , Guang-Zhong Yang

The training datasets used in long-tailed recognition are extremely unbalanced, resulting in significant variation in per-class accuracy across categories. Prior works mostly used average accuracy to evaluate their algorithms, which easily…

计算机视觉与模式识别 · 计算机科学 2024-01-31 Hao Yu , Yingxiao Du , Jianxin Wu

Methods in long-tail learning focus on improving performance for data-poor (rare) classes; however, performance for such classes remains much lower than performance for more data-rich (frequent) classes. Analyzing the predictions of…

计算机视觉与模式识别 · 计算机科学 2023-07-27 Nadine Chang , Jayanth Koushik , Aarti Singh , Martial Hebert , Yu-Xiong Wang , Michael J. Tarr

The distribution of data in the world (eg, internet, etc.) significantly differs from the well-curated datasets and is often over-populated with samples from common categories. The algorithms designed for well-curated datasets perform…

机器学习 · 计算机科学 2025-07-30 Harsh Rangwani

Semantic segmentation usually suffers from a long-tail data distribution. Due to the imbalanced number of samples across categories, the features of those tail classes may get squeezed into a narrow area in the feature space. Towards a…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Yuchao Wang , Jingjing Fei , Haochen Wang , Wei Li , Tianpeng Bao , Liwei Wu , Rui Zhao , Yujun Shen

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…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Jiacheng Yang , Ruichi Zhang , Chikai Shang , Mengke Li , Xinyi Shang , Junlong Gao , Yonggang Zhang , Yang Lu

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

Existing out-of-distribution (OOD) detection methods are typically benchmarked on training sets with balanced class distributions. However, in real-world applications, it is common for the training sets to have long-tailed distributions. In…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Haotao Wang , Aston Zhang , Yi Zhu , Shuai Zheng , Mu Li , Alex Smola , Zhangyang Wang

Self-supervised learning (SSL) has been investigated to generate task-agnostic representations across various domains. However, such investigation has not been conducted for detecting multiple mental disorders. The rationale behind the…

机器学习 · 计算机科学 2024-03-25 Rohan Kumar Gupta , Rohit Sinha

Diffusion models have made significant advances recently in high-quality image synthesis and related tasks. However, diffusion models trained on real-world datasets, which often follow long-tailed distributions, yield inferior fidelity for…

计算机视觉与模式识别 · 计算机科学 2024-02-19 Divin Yan , Lu Qi , Vincent Tao Hu , Ming-Hsuan Yang , Meng Tang

The heavy reliance on data is one of the major reasons that currently limit the development of deep learning. Data quality directly dominates the effect of deep learning models, and the long-tailed distribution is one of the factors…

计算机视觉与模式识别 · 计算机科学 2022-05-30 Lu Yang , He Jiang , Qing Song , Jun Guo

Real-world datasets commonly exhibit noisy labels and class imbalance, such as long-tailed distributions. While previous research addresses this issue by differentiating noisy and clean samples, reliance on information from predictions…

机器学习 · 计算机科学 2024-03-06 Ying-Hsuan Wu , Jun-Wei Hsieh , Li Xin , Shin-You Teng , Yi-Kuan Hsieh , Ming-Ching Chang

Deep neural networks have made huge progress in the last few decades. However, as the real-world data often exhibits a long-tailed distribution, vanilla deep models tend to be heavily biased toward the majority classes. To address this…

计算机视觉与模式识别 · 计算机科学 2023-04-07 Yan Jin , Mengke Li , Yang Lu , Yiu-ming Cheung , Hanzi Wang

We tackle the long-tailed visual recognition problem from the knowledge distillation perspective by proposing a Distill the Virtual Examples (DiVE) method. Specifically, by treating the predictions of a teacher model as virtual examples, we…

计算机视觉与模式识别 · 计算机科学 2021-09-21 Yin-Yin He , Jianxin Wu , Xiu-Shen Wei

Domain adaptive semantic segmentation aims to learn a model with the supervision of source domain data, and produce satisfactory dense predictions on unlabeled target domain. One popular solution to this challenging task is self-training,…

计算机视觉与模式识别 · 计算机科学 2022-03-21 Ruihuang Li , Shuai Li , Chenhang He , Yabin Zhang , Xu Jia , Lei Zhang

Graph classification is a crucial task in many real-world multimedia applications, where graphs can represent various multimedia data types such as images, videos, and social networks. Previous efforts have applied graph neural networks…

机器学习 · 计算机科学 2023-09-08 Zhengyang Mao , Wei Ju , Yifang Qin , Xiao Luo , Ming Zhang