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Federated Learning (FL) enables collaborative model training across decentralized devices while preserving data privacy. However, traditional FL suffers from communication overhead, system heterogeneity, and straggler effects. Asynchronous…

Machine Learning · Computer Science 2025-08-05 Ali Forootani , Raffaele Iervolino

Data heterogeneity across clients in federated learning (FL) settings is a widely acknowledged challenge. In response, personalized federated learning (PFL) emerged as a framework to curate local models for clients' tasks. In PFL, a common…

Machine Learning · Computer Science 2023-12-27 Yutong Dai , Zeyuan Chen , Junnan Li , Shelby Heinecke , Lichao Sun , Ran Xu

Recent studies of federated graph foundational models (FedGFMs) break the idealized and untenable assumption of having centralized data storage to train graph foundation models, and accommodate the reality of distributed, privacy-restricted…

Machine Learning · Computer Science 2026-01-30 Yinlin Zhu , Di Wu , Xianzhi Zhang , Yuming Ai , Xunkai Li , Miao Hu , Guocong Quan

Federated learning (FL) is an emerging machine learning paradigm that allows multiple parties to train a shared model collaboratively in a privacy-preserving manner. Existing horizontal FL methods generally assume that the FL server and…

Machine Learning · Computer Science 2023-08-02 Liping Yi , Gang Wang , Xiaoguang Liu , Zhuan Shi , Han Yu

Federated learning has been identified as an efficient decentralized training paradigm for scaling the machine learning model training on a large number of devices while guaranteeing the data privacy of the trainers. FedAvg has become a…

Machine Learning · Computer Science 2024-04-23 Haotian Xu , Zhaorui Zhang , Sheng Di , Benben Liu , Khalid Ayed Alharthi , Jiannong Cao

Federated learning (FL) is a framework for distributed learning of centralized models. In FL, a set of edge devices train a model using their local data, while repeatedly exchanging their trained updates with a central server. This…

Machine Learning · Computer Science 2021-08-11 Tomer Sery , Nir Shlezinger , Kobi Cohen , Yonina C. Eldar

Federated multi-task learning (FMTL) aims to simultaneously learn multiple related tasks across clients without sharing sensitive raw data. However, in the decentralized setting, existing FMTL frameworks are limited in their ability to…

Machine Learning · Computer Science 2025-06-10 Chaouki Ben Issaid , Praneeth Vepakomma , Mehdi Bennis

Personalized federated learning (PFL) with foundation models has emerged as a promising paradigm enabling clients to adapt to heterogeneous data distributions. However, real-world scenarios often face the co-occurrence of non-IID data and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Shihao Hou , Chikai Shang , Zhiheng Yang , Jiacheng Yang , Xinyi Shang , Junlong Gao , Yiqun Zhang , Yang Lu

Federated Learning (FL) enables collaborative model training across decentralized clients without sharing private data. However, FL suffers from biased global models due to non-IID and long-tail data distributions. We propose…

Machine Learning · Computer Science 2026-01-08 Jingrui Zhang , Yimeng Xu , Shujie Li , Feng Liang , Haihan Duan , Yanjie Dong , Victor C. M. Leung , Xiping Hu

Federated learning (FL) offers a solution to train a global machine learning model while still maintaining data privacy, without needing access to data stored locally at the clients. However, FL suffers performance degradation when client…

Machine Learning · Computer Science 2021-08-13 Zihan Chen , Kai Fong Ernest Chong , Tony Q. S. Quek

Data heterogeneity is a significant challenge in modern federated learning (FL) as it creates variance in local model updates, causing the aggregated global model to shift away from the true global optimum. Partial client participation in…

Machine Learning · Computer Science 2025-12-24 Mrinmay Sen , Subhrajit Nag

Federated Learning (FL) enables edge devices to collaboratively learn a global model, but it may not perform well when clients have high data heterogeneity. In this paper, we propose a dynamic clustering algorithm for personalized federated…

Machine Learning · Computer Science 2025-08-05 Heting Liu , Junzhe Huang , Fang He , Guohong Cao

Mobile devices and the Internet of Things (IoT) devices nowadays generate a large amount of heterogeneous spatial-temporal data. It remains a challenging problem to model the spatial-temporal dynamics under privacy concern. Federated…

Machine Learning · Computer Science 2024-11-05 Kaiyuan Li , Yihan Zhang , Huandong Wang , Yan Zhuo , Xinlei Chen

Federated learning (FL) is a kind of distributed machine learning framework, where the global model is generated on the centralized aggregation server based on the parameters of local models, addressing concerns about privacy leakage caused…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-08-22 Chenhao Xu , Youyang Qu , Yong Xiang , Longxiang Gao

In Federated Learning (FL), the data in each client is typically assumed fixed or static. However, data often comes in an incremental manner in real-world applications, where the data domain may increase dynamically. In this work, we study…

Machine Learning · Computer Science 2024-06-04 Yichen Li , Qunwei Li , Haozhao Wang , Ruixuan Li , Wenliang Zhong , Guannan Zhang

Federated learning is an approach to collaboratively training machine learning models for multiple parties that prohibit data sharing. One of the challenges in federated learning is non-IID data between clients, as a single model can not…

Machine Learning · Computer Science 2023-08-08 Peng Lan , Donglai Chen , Chong Xie , Keshu Chen , Jinyuan He , Juntao Zhang , Yonghong Chen , Yan Xu

Privacy-preserving distributed model training is crucial for modern machine learning applications, yet existing Federated Learning approaches struggle with heterogeneous data distributions and varying computational capabilities. Traditional…

Machine Learning · Computer Science 2025-07-08 Michael A. Helcig , Stefan Nastic

Federated Learning (FL) is an emerging decentralized learning paradigm that can partly address the privacy concern that cannot be handled by traditional centralized and distributed learning. Further, to make FL practical, it is also…

Machine Learning · Computer Science 2025-03-19 Binghui Zhang , Luis Mares De La Cruz , Binghui Wang

While large pre-trained models have achieved impressive performance across AI tasks, their deployment in privacy-sensitive and distributed environments remains challenging. Federated learning (FL) offers a viable solution by enabling…

Machine Learning · Computer Science 2025-08-26 Ruofan Jia , Weiying Xie , Jie Lei , Jitao Ma , Haonan Qin , Leyuan Fang

Federated multi-task learning (FMTL) seeks to collaboratively train customized models for users with different tasks while preserving data privacy. Most existing approaches assume model congruity (i.e., the use of fully or partially…

Machine Learning · Computer Science 2026-02-03 Mehdi Setayesh , Mahdi Beitollahi , Yasser H. Khalil , Hongliang Li