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Federated learning is designed to enhance data security and privacy, but faces challenges when dealing with heterogeneous data in long-tailed and non-IID distributions. This paper explores an overlooked scenario where tail classes are…

Machine Learning · Computer Science 2024-03-14 Zhuoxin Chen , Zhenyu Wu , Yang Ji

Long-tailed learning has garnered increasing attention due to its practical significance. Among the various approaches, the fine-tuning paradigm has gained considerable interest with the advent of foundation models. However, most existing…

Machine Learning · Computer Science 2025-08-11 Jiahao Chen , Bin Qin , Jiangmeng Li , Hao Chen , Bing Su

Class imbalance has been extensively studied in single-view scenarios; however, addressing this challenge in multi-view contexts remains an open problem, with even scarcer research focusing on trustworthy solutions. In this paper, we tackle…

Machine Learning · Computer Science 2025-11-13 Chuanqing Tang , Yifei Shi , Guanghao Lin , Lei Xing , Long Shi

The visual world naturally exhibits a long-tailed distribution of open classes, which poses great challenges to modern visual systems. Existing approaches either perform class re-balancing strategies or directly improve network modules to…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Teli Ma , Shijie Geng , Mengmeng Wang , Jing Shao , Jiasen Lu , Hongsheng Li , Peng Gao , Yu Qiao

Deep learning has achieved remarkable progress for visual recognition on large-scale balanced datasets but still performs poorly on real-world long-tailed data. Previous methods often adopt class re-balanced training strategies to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-10 Tianhao Li , Limin Wang , Gangshan Wu

Despite the recent success of deep neural networks, it remains challenging to effectively model the long-tail class distribution in visual recognition tasks. To address this problem, we first investigate the performance bottleneck of the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Songyang Zhang , Zeming Li , Shipeng Yan , Xuming He , Jian Sun

The success of deep learning depends on large-scale and well-curated training data, while data in real-world applications are commonly long-tailed and noisy. Many methods have been proposed to deal with long-tailed data or noisy data, while…

Machine Learning · Computer Science 2023-05-30 Lefan Zhang , Zhang-Hao Tian , Wujun Zhou , Wei Wang

Recently, long-tailed image classification harvests lots of research attention, since the data distribution is long-tailed in many real-world situations. Piles of algorithms are devised to address the data imbalance problem by biasing the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-06 Chaowei Fang , Dingwen Zhang , Wen Zheng , Xue Li , Le Yang , Lechao Cheng , Junwei Han

This paper studies few-shot relation extraction, which aims at predicting the relation for a pair of entities in a sentence by training with a few labeled examples in each relation. To more effectively generalize to new relations, in this…

Machine Learning · Computer Science 2020-07-07 Meng Qu , Tianyu Gao , Louis-Pascal A. C. Xhonneux , Jian Tang

Scarcity of labeled data is one of the most frequent problems faced in machine learning. This is particularly true in relation extraction in text mining, where large corpora of texts exists in many application domains, while labeling of…

Machine Learning · Computer Science 2018-07-13 Linara Adilova , Sven Giesselbach , Stefan Rüping

In the real open world, data tends to follow long-tailed class distributions, motivating the well-studied long-tailed recognition (LTR) problem. Naive training produces models that are biased toward common classes in terms of higher…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Shaden Alshammari , Yu-Xiong Wang , Deva Ramanan , Shu Kong

In real-world scenarios, data tends to exhibit a long-tailed distribution, which increases the difficulty of training deep networks. In this paper, we propose a novel self-paced knowledge distillation framework, termed Learning From…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Liuyu Xiang , Guiguang Ding , Jungong Han

Long-tailed recognition has benefited from foundation models and fine-tuning paradigms, yet existing studies and benchmarks are mainly confined to natural image domains, where pre-training and fine-tuning data share similar distributions.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Jiahao Chen , Bing Su

We examine the impact of incorporating knowledge graph information on the performance of relation extraction models across a range of datasets. Our hypothesis is that the positions of entities within a knowledge graph provide important…

Computation and Language · Computer Science 2025-06-23 Cedric Möller , Ricardo Usbeck

Real-world classification problems typically exhibit an imbalanced or long-tailed label distribution, wherein many labels are associated with only a few samples. This poses a challenge for generalisation on such labels, and also makes…

Machine Learning · Computer Science 2021-07-13 Aditya Krishna Menon , Sadeep Jayasumana , Ankit Singh Rawat , Himanshu Jain , Andreas Veit , Sanjiv Kumar

Knowledge graphs (KGs) are the key components of various natural language processing applications. To further expand KGs' coverage, previous studies on knowledge graph completion usually require a large number of training instances for each…

Computation and Language · Computer Science 2018-08-29 Wenhan Xiong , Mo Yu , Shiyu Chang , Xiaoxiao Guo , William Yang Wang

This article introduces a non-parametric information-theoretic approach to inference about the tail of a continuous or a discrete distribution. Leveraging a new concept named tail profile -- a set of information-theoretic quantities…

Applications · Statistics 2025-03-19 Jialin Zhang , Zhiyi Zhang

As the class size grows, maintaining a balanced dataset across many classes is challenging because the data are long-tailed in nature; it is even impossible when the sample-of-interest co-exists with each other in one collectable unit,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Kaihua Tang , Jianqiang Huang , Hanwang Zhang

This paper addresses the problem of Generalized Category Discovery (GCD) under a long-tailed distribution, which involves discovering novel categories in an unlabelled dataset using knowledge from a set of labelled categories. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Bingchen Zhao , Kai Han

Graph is a prevalent data structure employed to represent the relationships between entities, frequently serving as a tool to depict and simulate numerous systems, such as molecules and social networks. However, real-world graphs usually…

Machine Learning · Computer Science 2024-12-24 Jiawen Qin , Pengfeng Huang , Qingyun Sun , Cheng Ji , Xingcheng Fu , Jianxin Li