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Convolutional neural networks have achieved great improvement on face recognition in recent years because of its extraordinary ability in learning discriminative features of people with different identities. To train such a well-designed…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Xiao Zhang , Zhiyuan Fang , Yandong Wen , Zhifeng Li , Yu Qiao

The long-tailed distribution is a common phenomenon in the real world. Extracted large scale image datasets inevitably demonstrate the long-tailed property and models trained with imbalanced data can obtain high performance for the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-18 Konstantinos Panagiotis Alexandridis , Shan Luo , Anh Nguyen , Jiankang Deng , Stefanos Zafeiriou

Real-world data often follows a long-tailed distribution, where a few head classes occupy most of the data and a large number of tail classes only contain very limited samples. In practice, deep models often show poor generalization…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Haolin Pan , Yong Guo , Mianjie Yu , Jian Chen

In object detection, the instance count is typically used to define whether a dataset exhibits a long-tail distribution, implicitly assuming that models will underperform on categories with fewer instances. This assumption has led to…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Yanbiao Ma , Wei Dai , Jiayi Chen

Classification on long-tailed distributed data is a challenging problem, which suffers from serious class-imbalance and hence poor performance on tail classes with only a few samples. Owing to this paucity of samples, learning on the tail…

Computation and Language · Computer Science 2022-07-25 Taha ValizadehAslani , Yiwen Shi , Jing Wang , Ping Ren , Yi Zhang , Meng Hu , Liang Zhao , Hualou Liang

The datasets used for Deep Neural Network training (e.g., ImageNet, MSCOCO, etc.) are often manually balanced across categories (classes) to facilitate learning of all the categories. This curation process is often expensive and requires…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Harsh Rangwani

Visual as well as genetic biometrics are routinely employed to identify species and individuals in biological applications. However, no attempts have been made in this domain to computationally enhance visual classification of rare classes…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 Tayfun Karaderi , Tilo Burghardt , Raphael Morard , Daniela Schmidt

Deep learning algorithms face great challenges with long-tailed data distribution which, however, is quite a common case in real-world scenarios. Previous methods tackle the problem from either the aspect of input space (re-sampling classes…

Computer Vision and Pattern Recognition · Computer Science 2022-05-13 Jiequan Cui , Shu Liu , Zhuotao Tian , Zhisheng Zhong , Jiaya Jia

Real-world data often exhibit long-tailed distributions with numerous noisy labels, substantially degrading the performance of deep models. While prior research has made progress in addressing this combined challenge, it overlooks the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Mengke Li , Haiquan Ling , Yiqun Zhang , Yang Lu , Hui Huang

The Multimodal Learning Workshop (PBVS 2024) aims to improve the performance of automatic target recognition (ATR) systems by leveraging both Synthetic Aperture Radar (SAR) data, which is difficult to interpret but remains unaffected by…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Yuhyun Kim , Minwoo Kim , Hyobin Park , Jinwook Jung , Dong-Geol Choi

This paper considers learning deep features from long-tailed data. We observe that in the deep feature space, the head classes and the tail classes present different distribution patterns. The head classes have a relatively large spatial…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Jialun Liu , Yifan Sun , Chuchu Han , Zhaopeng Dou , Wenhui Li

The long-tailed class distribution in visual recognition tasks poses great challenges for neural networks on how to handle the biased predictions between head and tail classes, i.e., the model tends to classify tail classes as head classes.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yidong Wang , Bowen Zhang , Wenxin Hou , Zhen Wu , Jindong Wang , Takahiro Shinozaki

Training an accurate object detector is expensive and time-consuming. One main reason lies in the laborious labeling process, i.e., annotating category and bounding box information for all instances in every image. In this paper, we examine…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Qing Tian , Sampath Chanda , K C Amit Kumar , Douglas Gray

Anomaly detection (AD) aims to identify defective images and localize their defects (if any). Ideally, AD models should be able to detect defects over many image classes; without relying on hard-coded class names that can be uninformative…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Chih-Hui Ho , Kuan-Chuan Peng , Nuno Vasconcelos

A thorough and holistic scene understanding is crucial for autonomous vehicles, where LiDAR semantic segmentation plays an indispensable role. However, most existing methods focus on the network design while neglecting the inherent…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Peishan Cong , Xinge Zhu , Yuexin Ma

Anomaly detection is crucial in industrial applications for identifying rare and unseen patterns to ensure system reliability. Traditional models, trained on a single class of normal data, struggle with real-world distributions where normal…

Machine Learning · Statistics 2026-01-07 Jungi Lee , Jungkwon Kim , Chi Zhang , Sangmin Kim , Kwangsun Yoo , Seok-Joo Byun

Modern image classifiers perform well on populated classes, while degrading considerably on tail classes with only a few instances. Humans, by contrast, effortlessly handle the long-tailed recognition challenge, since they can learn the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Yingjun Du , Jiayi Shen , Xiantong Zhen , Cees G. M. Snoek

Data in the real world tends to exhibit a long-tailed label distribution, which poses great challenges for the training of neural networks in visual recognition. Existing methods tackle this problem mainly from the perspective of data…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Yan Zhao , Weicong Chen , Xu Tan , Kai Huang , Jihong Zhu

Integrating supervised contrastive loss to cross entropy-based communication has recently been proposed as a solution to address the long-tail learning problem. However, when the class imbalance ratio is high, it requires adjusting the…

Machine Learning · Computer Science 2024-07-10 Charika De Alvis , Dishanika Denipitiyage , Suranga Seneviratne

The successful application of semantic segmentation technology in the real world has been among the most exciting achievements in the computer vision community over the past decade. Although the long-tailed phenomenon has been investigated…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Shan Li , Lu Yang , Pu Cao , Liulei Li , Huadong Ma