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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…

Computer Vision and Pattern Recognition · Computer Science 2024-02-19 Divin Yan , Lu Qi , Vincent Tao Hu , Ming-Hsuan Yang , Meng Tang

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…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Marc-Antoine Lavoie , Steven Waslander

The visual world naturally exhibits an imbalance in the number of object or scene instances resulting in a \emph{long-tailed distribution}. This imbalance poses significant challenges for classification models based on deep learning.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-12 Rahul Vigneswaran , Marc T. Law , Vineeth N. Balasubramanian , Makarand Tapaswi

We propose a scheme for supervised image classification that uses privileged information, in the form of keypoint annotations for the training data, to learn strong models from small and/or biased training sets. Our main motivation is the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Andres C. Rodriguez , Stefano D'Aronco , Konrad Schindler , Jan Dirk Wegner

Long-tailed recognition is ubiquitous and challenging in deep learning and even in the downstream finetuning of foundation models, since the skew class distribution generally prevents the model generalization to the tail classes. Despite…

Machine Learning · Computer Science 2025-10-10 Jiaan Luo , Feng Hong , Qiang Hu , Xiaofeng Cao , Feng Liu , Jiangchao Yao

The research in self-supervised domain adaptation in semantic segmentation has recently received considerable attention. Although GAN-based methods have become one of the most popular approaches to domain adaptation, they have suffered from…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Thanh-Dat Truong , Chi Nhan Duong , Pierce Helton , Ashley Dowling , Xin Li , Khoa Luu

Computer vision tasks are traditionally defined and evaluated using semantic categories. However, it is known to the field that semantic classes do not necessarily correspond to a unique visual class (e.g. inside and outside of a car).…

Computer Vision and Pattern Recognition · Computer Science 2014-05-27 Hossein Azizpour , Stefan Carlsson

Effectively handling the co-occurrence of non-IID data and long-tailed distributions remains a critical challenge in federated learning. While fine-tuning vision-language models (VLMs) like CLIP has shown to be promising in addressing…

Machine Learning · Computer Science 2025-03-11 Shihao Hou , Xinyi Shang , Shreyank N Gowda , Yang Lu , Chao Wu , Yan Yan , Hanzi Wang

In this paper, we present a comprehensive study on the utility of deep convolutional neural networks with two state-of-the-art pooling layers which are placed after convolutional layers and fine-tuned in an end-to-end manner for visual…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Farid Alijani , Esa Rahtu

Supervised fine-tuning (SFT) is a standard approach to adapting large language models (LLMs) to new domains. In this work, we improve the statistical efficiency of SFT by selecting an informative subset of training examples. Specifically,…

Machine Learning · Computer Science 2025-05-22 Rohan Deb , Kiran Thekumparampil , Kousha Kalantari , Gaurush Hiranandani , Shoham Sabach , Branislav Kveton

When using supervised fine-tuning (SFT) to adapt large language models (LLMs) to specific domains, a significant challenge arises: should we use the entire SFT dataset for fine-tuning? Common practice often involves fine-tuning directly on…

Computation and Language · Computer Science 2025-05-26 Xiang Liu , Zhaoxiang Liu , Peng Wang , Kohou Wang , Huan Hu , Kai Wang , Shiguo Lian

Recent progress in self-supervised learning has resulted in models that are capable of extracting rich representations from image collections without requiring any explicit label supervision. However, to date the vast majority of these…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Grant Van Horn , Elijah Cole , Sara Beery , Kimberly Wilber , Serge Belongie , Oisin Mac Aodha

Most existing object instance detection and segmentation models only work well on fairly balanced benchmarks where per-category training sample numbers are comparable, such as COCO. They tend to suffer performance drop on realistic datasets…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Tao Wang , Yu Li , Bingyi Kang , Junnan Li , Junhao Liew , Sheng Tang , Steven Hoi , Jiashi Feng

Training large foundation models from scratch for domain-specific applications is almost impossible due to data limits and long-tailed distributions -- taking remote sensing (RS) as an example. Fine-tuning natural image pre-trained models…

Machine Learning · Computer Science 2026-03-03 Zichen Tian , Yaoyao Liu , Qianru Sun

Long-tailed problem has been an important topic in face recognition task. However, existing methods only concentrate on the long-tailed distribution of classes. Differently, we devote to the long-tailed domain distribution problem, which…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Dong Cao , Xiangyu Zhu , Xingyu Huang , Jianzhu Guo , Zhen Lei

Real-world data consistently exhibits a long-tailed distribution, often spanning multiple categories. This complexity underscores the challenge of content comprehension, particularly in scenarios requiring Long-Tailed Multi-Label image…

Computer Vision and Pattern Recognition · Computer Science 2024-08-16 Jiexuan Yan , Sheng Huang , Nankun Mu , Luwen Huangfu , Bo Liu

Federated learning offers a paradigm to the challenge of preserving privacy in distributed machine learning. However, datasets distributed across each client in the real world are inevitably heterogeneous, and if the datasets can be…

Machine Learning · Computer Science 2024-09-19 Xiuhua Lu , Peng Li , Xuefeng Jiang

Conventional detectors suffer from performance degradation when dealing with long-tailed data due to a classification bias towards the majority head categories. In this paper, we contend that the learning bias originates from two factors:…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Tianhao Qi , Hongtao Xie , Pandeng Li , Jiannan Ge , Yongdong Zhang

Long-tailed multi-label visual recognition (LTML) task is a highly challenging task due to the label co-occurrence and imbalanced data distribution. In this work, we propose a unified framework for LTML, namely prompt tuning with…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Peng Xia , Di Xu , Ming Hu , Lie Ju , Zongyuan Ge

Fine-grained image classification, which aims to distinguish images with subtle distinctions, is a challenging task due to two main issues: lack of sufficient training data for every class and difficulty in learning discriminative features…

Computer Vision and Pattern Recognition · Computer Science 2017-07-05 Aoxue Li , Zhiwu Lu , Liwei Wang , Tao Xiang , Xinqi Li , Ji-Rong Wen