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Federated Learning (FL) enables collaborative model training across decentralized edge devices while preserving data privacy. However, statistical heterogeneity among clients, often manifested as non-IID label distributions, poses…

Machine Learning · Computer Science 2026-01-06 Sameer Rahil , Zain Abdullah Ahmad , Talha Asif

Federated Learning (FL) commonly relies on a central server to coordinate training across distributed clients. While effective, this paradigm suffers from significant communication overhead, impacting overall training efficiency. To…

Machine Learning · Computer Science 2026-02-12 Jungwon Seo , Minhoe Kim , Chunming Rong

Federated learning (FL) is an emerging technique that trains massive and geographically distributed edge data while maintaining privacy. However, FL has inherent challenges in terms of fairness and computational efficiency due to the rising…

Machine Learning · Computer Science 2023-04-28 Yingchun Wang , Jingcai Guo , Jie Zhang , Song Guo , Weizhan Zhang , Qinghua Zheng

Federated Learning (FL) allows training machine learning models in privacy-constrained scenarios by enabling the cooperation of edge devices without requiring local data sharing. This approach raises several challenges due to the different…

Machine Learning · Computer Science 2022-12-02 Riccardo Zaccone , Andrea Rizzardi , Debora Caldarola , Marco Ciccone , Barbara Caputo

Due to the scarcity of industrial data, individual equipment users, particularly start-ups, struggle to independently train a comprehensive fault diagnosis model; federated learning enables collaborative training while ensuring data…

Artificial Intelligence · Computer Science 2026-04-10 Zexiao Wang , Yankai Wang , Xiaoqiang Liao , Xinguo Ming , Weiming Shen

Federated learning (FL) provides a decentralized machine learning paradigm where a server collaborates with a group of clients to learn a global model without accessing the clients' data. User heterogeneity is a significant challenge for…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Jiangming Shi , Shanshan Zheng , Xiangbo Yin , Yang Lu , Yuan Xie , Yanyun Qu

Federated learning (FL) commonly involves clients with diverse communication and computational capabilities. Such heterogeneity can significantly distort the optimization dynamics and lead to objective inconsistency, where the global model…

Machine Learning · Computer Science 2026-02-24 Shudi Weng , Chao Ren , Ming Xiao , Mikael Skoglund

Data heterogeneity poses a fundamental challenge in federated learning (FL), especially when clients differ not only in distribution but also in the reliability of their predictions across individual examples. While personalized FL (PFL)…

Machine Learning · Computer Science 2025-09-29 Amr Abourayya , Jens Kleesiek , Bharat Rao , Michael Kamp

Personalized Federated Learning (PFL) aims to train customized models for clients with highly heterogeneous data distributions while preserving data privacy. Existing approaches often rely on heuristics like clustering or model…

Artificial Intelligence · Computer Science 2026-03-13 Ping Guo , Tiantian Zhang , Xi Lin , Xiang Li , Zhi-Ri Tang , Qingfu Zhang

Federated Learning (FL) has emerged as a promising solution in Edge Computing (EC) environments to process the proliferation of data generated by edge devices. By collaboratively optimizing the global machine learning models on distributed…

Machine Learning · Computer Science 2024-02-14 Yongzhe Jia , Xuyun Zhang , Amin Beheshti , Wanchun Dou

Federated learning (FL) is a distributed learning paradigm that facilitates collaborative training of a shared global model across devices while keeping data localized. The deployment of FL in numerous real-world applications faces delays,…

Machine Learning · Computer Science 2024-02-16 Xinchi Qiu , Yan Gao , Lorenzo Sani , Heng Pan , Wanru Zhao , Pedro P. B. Gusmao , Mina Alibeigi , Alex Iacob , Nicholas D. Lane

Federated learning (FL) enables a set of distributed clients to jointly train machine learning models while preserving their local data privacy, making it attractive for applications in healthcare, finance, mobility, and smart-city systems.…

Machine Learning · Computer Science 2026-03-26 Eman M. AbouNassar , Amr Elshall , Sameh Abdulah

Federated Learning (FL) is increasingly adopted in edge computing scenarios, where a large number of heterogeneous clients operate under constrained or sufficient resources. The iterative training process in conventional FL introduces…

Machine Learning · Computer Science 2025-02-13 Dezhong Yao , Yuexin Shi , Tongtong Liu , Zhiqiang Xu

Federated Learning (FL) enables collaborative intelligence across decentralized data source devices in a privacy-preserving way. While substantial research attention has been drawn to optimizing the learning process for an individual task,…

Machine Learning · Computer Science 2026-05-04 Md Sirajul Islam , Isabelle G Chapman , N I Md Ashafuddula , Xu Yuan , Li Chen , Nian-Feng Tzeng , Klara Nahrstedt

Federated learning (FL) is a rapidly growing privacy-preserving collaborative machine learning paradigm. In practical FL applications, local data from each data silo reflect local usage patterns. Therefore, there exists heterogeneity of…

Machine Learning · Computer Science 2022-02-01 Shenglai Zeng , Zonghang Li , Hongfang Yu , Yihong He , Zenglin Xu , Dusit Niyato , Han Yu

In Federated Learning (FL), the distributed nature and heterogeneity of client data present both opportunities and challenges. While collaboration among clients can significantly enhance the learning process, not all collaborations are…

Machine Learning · Computer Science 2024-07-18 Nazarii Tupitsa , Samuel Horváth , Martin Takáč , Eduard Gorbunov

Federated Learning(FL) is popular as a privacy-preserving machine learning paradigm for generating a single model on decentralized data. However, statistical heterogeneity poses a significant challenge for FL. As a subfield of FL,…

Machine Learning · Computer Science 2024-10-22 Keting Yin , Jiayi Mao

Federated Learning (FL) has emerged as a powerful paradigm for decentralized machine learning, enabling collaborative model training across diverse clients without sharing raw data. However, traditional FL approaches often face limitations…

Machine Learning · Computer Science 2025-10-22 Ali Forootani , Raffaele Iervolino

Despite the remarkable performance of deep models in medical imaging, they still require source data for training, which limits their potential in light of privacy concerns. Federated learning (FL), as a decentralized learning framework…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Yihang Wu , Ahmad Chaddad

Federated Learning (FL) has emerged as a vital paradigm in modern machine learning that enables collaborative training across decentralized data sources without exchanging raw data. This approach not only addresses privacy concerns but also…

Machine Learning · Computer Science 2025-08-19 Zahra Kharaghani , Ali Dadras , Tommy Löfstedt