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Federated Learning (FL) is designed to protect the data privacy of each client during the training process by transmitting only models instead of the original data. However, the trained model may memorize certain information about the…

Machine Learning · Computer Science 2022-01-25 Chen Wu , Sencun Zhu , Prasenjit Mitra

Federated Learning (FL) is a distributed learning scheme to train a shared model across clients. One common and fundamental challenge in FL is that the sets of data across clients could be non-identically distributed and have different…

Machine Learning · Computer Science 2023-05-23 Junyi Zhu , Xingchen Ma , Matthew B. Blaschko

Federated Learning (FL) enables training ML models on edge clients without sharing data. However, the federated model's performance on local data varies, disincentivising the participation of clients who benefit little from FL. Fair FL…

Machine Learning · Computer Science 2023-05-05 Alex Iacob , Pedro P. B. Gusmão , Nicholas D. Lane

With privacy as a motivation, Federated Learning (FL) is an increasingly used paradigm where learning takes place collectively on edge devices, each with a cache of user-generated training examples that remain resident on the local device.…

Machine Learning · Computer Science 2021-11-25 Sean Augenstein , Andrew Hard , Kurt Partridge , Rajiv Mathews

Federated Learning (FL) enables collaborative learning without directly sharing individual's raw data. FL can be implemented in either a centralized (server-based) or decentralized (peer-to-peer) manner. In this survey, we present a novel…

Machine Learning · Computer Science 2025-03-11 Qiongxiu Li , Wenrui Yu , Yufei Xia , Jun Pang

As a promising distributed machine learning paradigm, Federated Learning (FL) trains a central model with decentralized data without compromising user privacy, which has made it widely used by Artificial Intelligence Internet of Things…

Machine Learning · Computer Science 2022-05-13 Tian Liu , Zhiwei Ling , Jun Xia , Xin Fu , Shui Yu , Mingsong Chen

Federated learning (FL) is a distributed learning paradigm that allows multiple decentralized clients to collaboratively learn a common model without sharing local data. Although local data is not exposed directly, privacy concerns…

Machine Learning · Computer Science 2024-10-02 Tongxin Yin , Xuwei Tan , Xueru Zhang , Mohammad Mahdi Khalili , Mingyan Liu

Federated Learning (FL) has emerged as a promising approach to enable collaborative learning among multiple clients while preserving data privacy. However, cross-domain FL tasks, where clients possess data from different domains or…

Machine Learning · Computer Science 2024-04-02 Yuwen Yang , Chang Liu , Xun Cai , Suizhi Huang , Hongtao Lu , Yue Ding

Federated Learning (FL) is a decentralized machine learning protocol that allows a set of participating agents to collaboratively train a model without sharing their data. This makes FL particularly suitable for settings where data privacy…

Machine Learning · Computer Science 2020-10-30 Mustafa Safa Ozdayi , Murat Kantarcioglu , Rishabh Iyer

In the context of personalized federated learning (FL), the critical challenge is to balance local model improvement and global model tuning when the personal and global objectives may not be exactly aligned. Inspired by Bayesian…

Machine Learning · Computer Science 2022-04-19 Huili Chen , Jie Ding , Eric Tramel , Shuang Wu , Anit Kumar Sahu , Salman Avestimehr , Tao Zhang

Federated learning allows clients to collaboratively learn statistical models while keeping their data local. Federated learning was originally used to train a unique global model to be served to all clients, but this approach might be…

Machine Learning · Computer Science 2022-06-20 Othmane Marfoq , Giovanni Neglia , Laetitia Kameni , Richard Vidal

Federated Learning (FL) is a machine learning approach that allows multiple clients to collaboratively learn a shared model without sharing raw data. However, current FL systems provide an all-in-one solution, which can hinder the wide…

Databases · Computer Science 2023-03-16 Muhammad Jahanzeb Khan , Rui Hu , Mohammad Sadoghi , Dongfang Zhao

The federated learning (FL) paradigm emerges to preserve data privacy during model training by only exposing clients' model parameters rather than original data. One of the biggest challenges in FL lies in the non-IID (not identical and…

Machine Learning · Computer Science 2023-05-26 Jiahao Tan , Yipeng Zhou , Gang Liu , Jessie Hui Wang , Shui Yu

Federated Learning (FL) is a distributed and privacy-preserving machine learning paradigm that coordinates multiple clients to train a model while keeping the raw data localized. However, this traditional FL poses some challenges, including…

Machine Learning · Computer Science 2026-05-12 Laiqiao Qin , Tianqing Zhu , Wanlei Zhou , Philip S. Yu

Federated learning (FL) is a distributed learning paradigm that enables multiple clients to collaboratively learn a shared global model. Despite the recent progress, it remains challenging to deal with heterogeneous data clients, as the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Yiqing Shen , Yuyin Zhou , Lequan Yu

Clustered Federated Learning (CFL) has emerged as a powerful approach for addressing data heterogeneity and ensuring privacy in large distributed IoT environments. By clustering clients and training cluster-specific models, CFL enables…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-12 Sabtain Ahmad , Meerzhan Kanatbekova , Ivona Brandic , Atakan Aral

Privacy-preserving machine learning has become a key conundrum for multi-party artificial intelligence. Federated learning (FL) and Split Learning (SL) are two frameworks that enable collaborative learning while keeping the data private (on…

Machine Learning · Computer Science 2022-12-15 Frédéric Berdoz , Abhishek Singh , Martin Jaggi , Ramesh Raskar

Federated learning (FL) is an important technique for learning models from decentralized data in a privacy-preserving way. Existing FL methods usually uniformly sample clients for local model learning in each round. However, different…

Machine Learning · Computer Science 2023-06-27 Tao Qi , Fangzhao Wu , Lingjuan Lyu , Yongfeng Huang , Xing Xie

While Federated Learning (FL) is gaining popularity for training machine learning models in a decentralized fashion, numerous challenges persist, such as asynchronization, computational expenses, data heterogeneity, and gradient and…

Machine Learning · Computer Science 2025-03-13 Chun-Yin Huang , Ruinan Jin , Can Zhao , Daguang Xu , Xiaoxiao Li

Federated Learning (FL) is a novel approach that allows for collaborative machine learning while preserving data privacy by leveraging models trained on decentralized devices. However, FL faces challenges due to non-uniformly distributed…

Machine Learning · Computer Science 2024-04-16 Changlin Song , Divya Saxena , Jiannong Cao , Yuqing Zhao