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Federated Learning (FL) in Deep Learning (DL)-automated medical image segmentation helps preserving privacy by enabling collaborative model training without sharing patient data. However, FL faces challenges with data heterogeneity among…

Image and Video Processing · Electrical Eng. & Systems 2024-08-22 Philip Schutte , Valentina Corbetta , Regina Beets-Tan , Wilson Silva

Though successful, federated learning presents new challenges for machine learning, especially when the issue of data heterogeneity, also known as Non-IID data, arises. To cope with the statistical heterogeneity, previous works incorporated…

Machine Learning · Computer Science 2022-10-03 Mahdi Morafah , Saeed Vahidian , Chen Chen , Mubarak Shah , Bill Lin

Most existing federated learning methods assume that clients have fully labeled data to train on, while in reality, it is hard for the clients to get task-specific labels due to users' privacy concerns, high labeling costs, or lack of…

Machine Learning · Computer Science 2023-02-24 Nan Yang , Dong Yuan , Charles Z Liu , Yongkun Deng , Wei Bao

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

Data heterogeneity presents significant challenges for federated learning (FL). Recently, dataset distillation techniques have been introduced, and performed at the client level, to attempt to mitigate some of these challenges. In this…

Machine Learning · Computer Science 2023-12-05 Yuqi Jia , Saeed Vahidian , Jingwei Sun , Jianyi Zhang , Vyacheslav Kungurtsev , Neil Zhenqiang Gong , Yiran Chen

Distillation with unlabeled examples is a popular and powerful method for training deep neural networks in settings where the amount of labeled data is limited: A large ''teacher'' neural network is trained on the labeled data available,…

Machine Learning · Computer Science 2022-10-14 Fotis Iliopoulos , Vasilis Kontonis , Cenk Baykal , Gaurav Menghani , Khoa Trinh , Erik Vee

Class imbalance remains a critical challenge in semi-supervised learning (SSL), especially when distributional mismatches between labeled and unlabeled data lead to biased classification. Although existing methods address this issue by…

Machine Learning · Computer Science 2025-11-25 Senmao Tian , Xiang Wei , Shunli Zhang

Natural language processing (NLP) sees rich mobile applications. To support various language understanding tasks, a foundation NLP model is often fine-tuned in a federated, privacy-preserving setting (FL). This process currently relies on…

Machine Learning · Computer Science 2023-08-22 Dongqi Cai , Shangguang Wang , Yaozong Wu , Felix Xiaozhu Lin , Mengwei Xu

Vision Transformers (ViTs) emerge to achieve impressive performance on many data-abundant computer vision tasks by capturing long-range dependencies among local features. However, under few-shot learning (FSL) settings on small datasets…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Han Lin , Guangxing Han , Jiawei Ma , Shiyuan Huang , Xudong Lin , Shih-Fu Chang

Clustered federated learning (FL) has been shown to produce promising results by grouping clients into clusters. This is especially effective in scenarios where separate groups of clients have significant differences in the distributions of…

Machine Learning · Computer Science 2022-09-22 Saeed Vahidian , Mahdi Morafah , Weijia Wang , Vyacheslav Kungurtsev , Chen Chen , Mubarak Shah , Bill Lin

To eliminate the requirement of fully-labeled data for supervised model training in traditional Federated Learning (FL), extensive attention has been paid to the application of Self-supervised Learning (SSL) approaches on FL to tackle the…

Machine Learning · Computer Science 2022-11-15 Yi Liu , Song Guo , Jie Zhang , Qihua Zhou , Yingchun Wang , Xiaohan Zhao

With the rapid expansion of edge devices, such as IoT devices, where crucial data needed for machine learning applications is generated, it becomes essential to promote their participation in privacy-preserving Federated Learning (FL)…

Machine Learning · Computer Science 2025-01-03 Hongrui Shi , Valentin Radu , Po Yang

Federated learning (FL) is a promising way to use the computing power of mobile devices while maintaining the privacy of users. Current work in FL, however, makes the unrealistic assumption that the users have ground-truth labels on their…

Machine Learning · Computer Science 2021-03-10 Zhengming Zhang , Yaoqing Yang , Zhewei Yao , Yujun Yan , Joseph E. Gonzalez , Michael W. Mahoney

Unlike traditional central training, federated learning (FL) improves the performance of the global model by sharing and aggregating local models rather than local data to protect the users' privacy. Although this training approach appears…

Machine Learning · Computer Science 2022-01-27 Jiahui Geng , Yongli Mou , Feifei Li , Qing Li , Oya Beyan , Stefan Decker , Chunming Rong

Federated Learning (FL) is a distributed machine learning paradigm that enables learning models from decentralized private datasets, where the labeling effort is entrusted to the clients. While most existing FL approaches assume…

Machine Learning · Computer Science 2023-05-29 Vasileios Tsouvalas , Aaqib Saeed , Tanir Ozcelebi , Nirvana Meratnia

Federated learning (FL) has shown great potential in medical image computing since it provides a decentralized learning paradigm that allows multiple clients to train a model collaboratively without privacy leakage. However, current studies…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Meilu Zhu , Qiushi Yang , Zhifan Gao , Yixuan Yuan , Jun Liu

Federated Semi-Supervised Learning (FSSL) aims to leverage unlabeled data across clients with limited labeled data to train a global model with strong generalization ability. Most FSSL methods rely on consistency regularization with…

Machine Learning · Computer Science 2025-03-18 Yijie Liu , Xinyi Shang , Yiqun Zhang , Yang Lu , Chen Gong , Jing-Hao Xue , Hanzi Wang

Federated Learning (FL) has emerged as a potent framework for training models across distributed data sources while maintaining data privacy. Nevertheless, it faces challenges with limited high-quality labels and non-IID client data,…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Taehyeon Kim , Eric Lin , Junu Lee , Christian Lau , Vaikkunth Mugunthan

Federated learning provides a privacy guarantee for generating good deep learning models on distributed clients with different kinds of data. Nevertheless, dealing with non-IID data is one of the most challenging problems for federated…

Machine Learning · Computer Science 2022-05-03 Xinyi Shang , Yang Lu , Yiu-ming Cheung , Hanzi Wang

Federated Unsupervised Learning (FUL) aims to learn expressive representations in federated and self-supervised settings. The quality of representations learned in FUL is usually determined by uniformity, a measure of how uniformly…

Machine Learning · Computer Science 2025-08-05 Hung-Chieh Fang , Hsuan-Tien Lin , Irwin King , Yifei Zhang