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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…

机器学习 · 计算机科学 2025-08-11 Jiahao Chen , Bin Qin , Jiangmeng Li , Hao Chen , Bing Su

Long-tailed relation classification is a challenging problem as the head classes may dominate the training phase, thereby leading to the deterioration of the tail performance. Existing solutions usually address this issue via…

机器学习 · 计算机科学 2023-01-26 Haiyang Yu , Ningyu Zhang , Shumin Deng , Zonggang Yuan , Yantao Jia , Huajun Chen

Graph-level anomaly detection (GLAD) has already gained significant importance and has become a popular field of study, attracting considerable attention across numerous downstream works. The core focus of this domain is to capture and…

机器学习 · 计算机科学 2024-07-17 Zitong Wang , Xuexiong Luo , Enfeng Song , Qiuqing Bai , Fu Lin

In medical contexts, the imbalanced data distribution in long-tailed datasets, due to scarce labels for rare diseases, greatly impairs the diagnostic accuracy of deep learning models. Recent multimodal text-image supervised foundation…

计算机视觉与模式识别 · 计算机科学 2024-08-28 Sirui Li , Li Lin , Yijin Huang , Pujin Cheng , Xiaoying Tang

The imbalance (or long-tail) is the nature of many real-world data distributions, which often induces the undesirable bias of deep classification models toward frequent classes, resulting in poor performance for tail classes. In this paper,…

机器学习 · 计算机科学 2025-10-13 Fudong Lin , Xu Yuan

Multi-task learning (MTL) has emerged as a promising approach for deploying deep learning models in real-life applications. Recent studies have proposed optimization-based learning paradigms to establish task-shared representations in MTL.…

机器学习 · 计算机科学 2025-03-12 Zhipeng Zhou , Liu Liu , Peilin Zhao , Wei Gong

Real-world data usually suffers from severe class imbalance and long-tailed distributions, where minority classes are significantly underrepresented compared to the majority ones. Recent research prefers to utilize multi-expert…

计算机视觉与模式识别 · 计算机科学 2023-05-08 Zhengzhuo Xu , Zenghao Chai , Chengyin Xu , Chun Yuan , Haiqin Yang

Long-tailed distributions frequently emerge in real-world data, where a large number of minority categories contain a limited number of samples. Such imbalance issue considerably impairs the performance of standard supervised learning…

机器学习 · 计算机科学 2024-03-15 Chaoqun Du , Yulin Wang , Shiji Song , Gao Huang

In real-world data, long-tailed data distribution is common, making it challenging for models trained on empirical risk minimisation to learn and classify tail classes effectively. While many studies have sought to improve long tail…

计算机视觉与模式识别 · 计算机科学 2025-01-24 Ziheng Wang , Toni Lassila , Sharib Ali

We introduce LPT++, a comprehensive framework for long-tailed classification that combines parameter-efficient fine-tuning (PEFT) with a learnable model ensemble. LPT++ enhances frozen Vision Transformers (ViTs) through the integration of…

计算机视觉与模式识别 · 计算机科学 2024-09-18 Bowen Dong , Pan Zhou , Wangmeng Zuo

Neural networks trained on real-world datasets with long-tailed label distributions are biased towards frequent classes and perform poorly on infrequent classes. The imbalance in the ratio of positive and negative samples for each class…

计算机视觉与模式识别 · 计算机科学 2021-05-25 Kevin Duarte , Yogesh S. Rawat , Mubarak Shah

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

Federated Learning (FL) has emerged as a decentralized machine learning technique, allowing clients to train a global model collaboratively without sharing private data. However, most FL studies ignore the crucial challenge of heterogeneous…

机器学习 · 计算机科学 2025-10-02 Huy Q. Le , Ye Lin Tun , Yu Qiao , Minh N. H. Nguyen , Keon Oh Kim , Eui-Nam Huh , Choong Seon Hong

Embedding learning (EL) and feature synthesizing (FS) are two of the popular categories of fine-grained GZSL methods. EL or FS using global features cannot discriminate fine details in the absence of local features. On the other hand, EL or…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Tasfia Shermin , Shyh Wei Teng , Ferdous Sohel , Manzur Murshed , Guojun Lu

Complementary-label learning (CLL) is widely used in weakly supervised classification, but it faces a significant challenge in real-world datasets when confronted with class-imbalanced training samples. In such scenarios, the number of…

机器学习 · 计算机科学 2024-03-21 Meng Wei , Yong Zhou , Zhongnian Li , Xinzheng Xu

Image and multimodal machine learning tasks are very challenging to solve in the case of poorly distributed data. In particular, data availability and privacy restrictions exacerbate these hurdles in the medical domain. The state of the art…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Rafael Elberg , Denis Parra , Mircea Petrache

Federated Learning (FL) enables decentralized, privacy-preserving model training but struggles to balance global generalization and local personalization due to non-identical data distributions across clients. Personalized Fine-Tuning…

机器学习 · 计算机科学 2025-12-30 Minghui Chen , Hrad Ghoukasian , Ruinan Jin , Zehua Wang , Sai Praneeth Karimireddy , Xiaoxiao Li

Federated learning (FL) enables multiple devices to collaboratively train a global model while maintaining data on local servers. Each device trains the model on its local server and shares only the model updates (i.e., gradient weights)…

机器学习 · 计算机科学 2024-12-31 Nishant S. Gaikwad , Lucas Heublein , Nisha L. Raichur , Tobias Feigl , Christopher Mutschler , Felix Ott

Real-world data is predominantly unbalanced and long-tailed, but deep models struggle to recognize rare classes in the presence of frequent classes. Often, classes can be accompanied by side information like textual descriptions, but it is…

机器学习 · 计算机科学 2020-11-05 Dvir Samuel , Yuval Atzmon , Gal Chechik

Supervised Contrastive Loss (SCL) is popular in visual representation learning. Given an anchor image, SCL pulls two types of positive samples, i.e., its augmentation and other images from the same class together, while pushes negative…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Shiyu Xuan , Shiliang Zhang