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Federated learning (FL) has emerged as the predominant approach for collaborative training of neural network models across multiple users, without the need to gather the data at a central location. One of the important challenges in this…

Machine Learning · Computer Science 2021-07-15 Matthias Reisser , Christos Louizos , Efstratios Gavves , Max Welling

Federated Multi-Task Learning (FMTL) enables multiple clients performing heterogeneous tasks without exchanging their local data, offering broad potential for privacy preserving multi-task collaboration. However, most existing methods focus…

Machine Learning · Computer Science 2025-06-02 Yipan Wei , Yuchen Zou , Yapeng Li , Bo Du

Motivated by the drawbacks of cloud-based federated learning (FL), cooperative federated edge learning (CFEL) has been proposed to improve efficiency for FL over mobile edge networks, where multiple edge servers collaboratively coordinate…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-11-22 Zhenxiao Zhang , Zhidong Gao , Yuanxiong Guo , Yanmin Gong

Federated Learning (FL) enables the multiple participating devices to collaboratively contribute to a global neural network model while keeping the training data locally. Unlike the centralized training setting, the non-IID and imbalanced…

Machine Learning · Computer Science 2024-04-16 Moming Duan , Duo Liu , Xinyuan Ji , Renping Liu , Liang Liang , Xianzhang Chen , Yujuan Tan

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

Personalized medication aims to tailor healthcare to individual patient characteristics. However, the heterogeneity of patient data across healthcare systems presents significant challenges to achieving accurate and effective personalized…

Artificial Intelligence · Computer Science 2024-12-10 Jiechao Gao , Yuangang Li

Federated learning has evolved to improve a single global model under data heterogeneity (as a curse) or to develop multiple personalized models using data heterogeneity (as a blessing). However, little research has considered both…

Machine Learning · Computer Science 2022-03-17 Jaehoon Oh , Sangmook Kim , Se-Young Yun

Federated learning enables collaborative model training without sharing raw data, but its performance can degrade substantially under heterogeneous client data distributions. A single global model often cannot satisfy diverse client…

Machine Learning · Computer Science 2026-05-27 Yunseok Kang , Jaeyoung Song

Federated Learning (FL) is a distributed learning paradigm that empowers edge devices to collaboratively learn a global model leveraging local data. Simulating FL on GPU is essential to expedite FL algorithm prototyping and evaluations.…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-05-26 Min Zhang , Fuxun Yu , Yongbo Yu , Minjia Zhang , Ang Li , Xiang Chen

Federated learning (FL) is a decentralized machine learning paradigm in which multiple clients collaboratively train a shared model without sharing their local private data. However, real-world applications of FL frequently encounter…

Machine Learning · Computer Science 2025-08-14 Zhekai Zhou , Shudong Liu , Zhaokun Zhou , Yang Liu , Qiang Yang , Yuesheng Zhu , Guibo Luo

Federated Learning (FL) has shown great potential as a privacy-preserving solution to learning from decentralized data that are only accessible to end devices (i.e., clients). In many scenarios, however, a large proportion of the clients…

Machine Learning · Computer Science 2022-01-31 Wentai Wu , Ligang He , Weiwei Lin , Carsten Maple

Federated learning aims to train models collaboratively across different clients without the sharing of data for privacy considerations. However, one major challenge for this learning paradigm is the {\em data heterogeneity} problem, which…

Machine Learning · Computer Science 2024-04-09 Yujun Shi , Jian Liang , Wenqing Zhang , Vincent Y. F. Tan , Song Bai

Federated learning is widely used to perform decentralized training of a global model on multiple devices while preserving the data privacy of each device. However, it suffers from heterogeneous local data on each training device which…

Machine Learning · Computer Science 2023-01-18 Sirui Hu , Ling Feng , Xiaohan Yang , Yongchao Chen

Federated learning allows multiple clients to collaborate to train high-performance deep learning models while keeping the training data locally. However, when the local data of all clients are not independent and identically distributed…

Machine Learning · Computer Science 2021-09-28 Xutong Mu , Yulong Shen , Ke Cheng , Xueli Geng , Jiaxuan Fu , Tao Zhang , Zhiwei Zhang

With growing concerns regarding data privacy and rapid increase in data volume, Federated Learning(FL) has become an important learning paradigm. However, jointly learning a deep neural network model in a FL setting proves to be a…

Machine Learning · Computer Science 2022-07-11 Disha Makhija , Xing Han , Nhat Ho , Joydeep Ghosh

Federated learning enables multiple clients to collaboratively learn a global model by periodically aggregating the clients' models without transferring the local data. However, due to the heterogeneity of the system and data, many…

Machine Learning · Computer Science 2021-09-14 Dezhong Yao , Wanning Pan , Yutong Dai , Yao Wan , Xiaofeng Ding , Hai Jin , Zheng Xu , Lichao Sun

Federated Learning (FL) has emerged as a crucial distributed training paradigm, enabling discrete devices to collaboratively train a shared model under the coordination of a central server, while leveraging their locally stored private…

Machine Learning · Computer Science 2024-09-02 Wenhao Yuan , Xuehe Wang

Federated learning is a paradigm of increasing relevance in real world applications, aimed at building a global model across a network of heterogeneous users without requiring the sharing of private data. We focus on model learning over…

Machine Learning · Computer Science 2025-07-24 Aritz Pérez , Carlos Echegoyen , Guzmán Santafé

In federated learning, clients share a global model that has been trained on decentralized local client data. Although federated learning shows significant promise as a key approach when data cannot be shared or centralized, current methods…

Machine Learning · Computer Science 2021-02-09 Edvin Listo Zec , Olof Mogren , John Martinsson , Leon René Sütfeld , Daniel Gillblad

Federated learning has attracted significant attention as a privacy-preserving framework for training personalised models on multi-source heterogeneous data. However, most existing approaches are unable to handle scenarios where subgroup…

Methodology · Statistics 2025-10-14 Changxin Yang , Zhongyi Zhu , Heng Lian