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Federated learning is renowned for its efficacy in distributed model training, ensuring that users, called clients, retain data privacy by not disclosing their data to the central server that orchestrates collaborations. Most previous work…

Machine Learning · Computer Science 2024-10-30 Pouya M. Ghari , Yanning Shen

Federated learning involves training statistical models over remote devices such as mobile phones while keeping data localized. Training in heterogeneous and potentially massive networks introduces opportunities for privacy-preserving data…

Machine Learning · Computer Science 2022-01-21 Afra Mashhadi , Alex Kyllo , Reza M. Parizi

Federated Learning (FL) trains deep models across edge devices without centralizing raw data, preserving user privacy. However, client heterogeneity slows down convergence and limits global model accuracy. Clustered FL (CFL) mitigates this…

Machine Learning · Computer Science 2026-02-10 Minghao Li , Dmitrii Avdiukhin , Rana Shahout , Nikita Ivkin , Vladimir Braverman , Minlan Yu

With an increasing number of smart devices like internet of things (IoT) devices deployed in the field, offloadingtraining of neural networks (NNs) to a central server becomes more and more infeasible. Recent efforts toimprove users'…

Machine Learning · Computer Science 2023-07-19 Kilian Pfeiffer , Martin Rapp , Ramin Khalili , Jörg Henkel

Many application scenarios call for training a machine learning model among multiple participants. Federated learning (FL) was proposed to enable joint training of a deep learning model using the local data in each party without revealing…

Machine Learning · Computer Science 2021-02-12 Kai-Fung Chu , Lintao Zhang

This paper focuses on addressing the practical yet challenging problem of model heterogeneity in federated learning, where clients possess models with different network structures. To track this problem, we propose a novel framework called…

Machine Learning · Computer Science 2023-10-30 Jiaqi Wang , Xingyi Yang , Suhan Cui , Liwei Che , Lingjuan Lyu , Dongkuan Xu , Fenglong Ma

Motivated by the high resource costs and privacy concerns associated with centralized machine learning, federated learning (FL) has emerged as an efficient alternative that enables clients to collaboratively train a global model while…

Machine Learning · Computer Science 2025-09-10 Yiyue Chen , Usman Akram , Chianing Wang , Haris Vikalo

Federated learning (FL) enables collaborative training across clients while preserving privacy. While most existing FL methods assume homogeneous model architectures, client heterogeneity in both data and resources makes this assumption…

Machine Learning · Computer Science 2026-03-30 Yuan Yao , Lixu Wang , Jiaqi Wu , Jin Song , Simin Chen , Zehua Wang , Zijian Tian , Wei Chen , Huixia Li , Xiaoxiao Li

Federated learning enables the deployment of machine learning to problems for which centralized data collection is impractical. Adding differential privacy guarantees bounds on privacy while data are contributed to a global model. Adding…

Machine Learning · Computer Science 2022-02-22 Andrew Silva , Katherine Metcalf , Nicholas Apostoloff , Barry-John Theobald

The Federated Learning (FL) paradigm is known to face challenges under heterogeneous client data. Local training on non-iid distributed data results in deflected local optimum, which causes the client models drift further away from each…

Machine Learning · Computer Science 2022-11-22 Renjie Pi , Weizhong Zhang , Yueqi Xie , Jiahui Gao , Xiaoyu Wang , Sunghun Kim , Qifeng Chen

The proliferation of Internet of Things devices and advances in communication technology have unleashed an explosion of personal data, amplifying privacy concerns amid stringent regulations like GDPR and CCPA. Federated Learning offers a…

Machine Learning · Computer Science 2025-03-04 Fan Wan , Yuchen Li , Xueqi Qiu , Rui Sun , Leyuan Zhang , Xingyu Miao , Tianyu Zhang , Haoran Duan , Yang Long

Recent state-of-the-art forecasting methods are trained on collections of time series. These methods, often referred to as global models, can capture common patterns in different time series to improve their generalization performance.…

Machine Learning · Computer Science 2024-04-30 Vitor Cerqueira , Nuno Moniz , Ricardo Inácio , Carlos Soares

Federated Learning (FL) is a distributed machine learning strategy, developed for settings where training data is owned by distributed devices and cannot be shared. FL circumvents this constraint by carrying out model training in…

Machine Learning · Computer Science 2025-01-24 Maria Hartmann , Grégoire Danoy , Pascal Bouvry

Federated learning (FL) on graphs shows promise for distributed time-series forecasting. Yet, existing methods rely on static topologies and struggle with client heterogeneity. We propose Fed-GAME, a framework that models personalized…

Machine Learning · Computer Science 2026-03-03 Yi Li , Han Liu , Mingfeng Fan , Guo Chen , Chaojie Li , Biplab Sikdar

Federated learning obtains a central model on the server by aggregating models trained locally on clients. As a result, federated learning does not require clients to upload their data to the server, thereby preserving the data privacy of…

Machine Learning · Computer Science 2020-08-31 Yang Chen , Xiaoyan Sun , Yaochu Jin

Federated Learning (FL) allows several clients to construct a common global machine-learning model without having to share their data. FL, however, faces the challenge of statistical heterogeneity between the client's data, which degrades…

Machine Learning · Computer Science 2024-01-26 Zahra Taghiyarrenani , Abdallah Alabdallah , Slawomir Nowaczyk , Sepideh Pashami

Federated Learning (FL) suffers from severe performance degradation due to the data heterogeneity among clients. Existing works reveal that the fundamental reason is that data heterogeneity can cause client drift where the local model…

Machine Learning · Computer Science 2025-01-22 Haoran Xu , Jiaze Li , Wanyi Wu , Hao Ren

Data heterogeneity across clients is one of the key challenges in Federated Learning (FL), which may slow down the global model convergence and even weaken global model performance. Most existing approaches tackle the heterogeneity by…

Machine Learning · Computer Science 2023-07-18 Jun Nie , Danyang Xiao , Lei Yang , Weigang Wu

Federated learning, as a promising distributed learning paradigm, enables collaborative training of a global model across multiple network edge clients without the need for central data collecting. However, the heterogeneity of edge data…

Machine Learning · Computer Science 2024-03-06 Xingyan Chen , Tian Du , Mu Wang , Tiancheng Gu , Yu Zhao , Gang Kou , Changqiao Xu , Dapeng Oliver Wu

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