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Federated Learning (FL) is a promising decentralized learning framework and has great potentials in privacy preservation and in lowering the computation load at the cloud. Recent work showed that FedAvg and FedProx - the two widely-adopted…

Machine Learning · Statistics 2022-02-16 Lili Su , Jiaming Xu , Pengkun Yang

Federated learning (FL) enables collaborative machine learning across distributed data owners, but data heterogeneity poses a challenge for model calibration. While prior work focused on improving accuracy for non-iid data, calibration…

Machine Learning · Computer Science 2024-06-05 Hongyi Peng , Han Yu , Xiaoli Tang , Xiaoxiao Li

We consider a federated learning (FL) system consisting of multiple clients and a server, where the clients aim to collaboratively learn a common decision model from their distributed data. Unlike the conventional FL framework that assumes…

Machine Learning · Computer Science 2023-05-10 Kun Jin , Tongxin Yin , Zhongzhu Chen , Zeyu Sun , Xueru Zhang , Yang Liu , Mingyan Liu

Federated optimization (FedOpt), which targets at collaboratively training a learning model across a large number of distributed clients, is vital for federated learning. The primary concerns in FedOpt can be attributed to the model…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-02-28 Huiming Chen , Huandong Wang , Quanming Yao , Yong Li , Depeng Jin , Qiang Yang

Federated learning (FL) enables decentralized model training without centralizing raw data. However, practical FL deployments often face a key realistic challenge: Clients participate intermittently in server aggregation and with unknown,…

Machine Learning · Computer Science 2025-07-15 Herlock , Rahimi , Dionysis Kalogerias

Federated learning (FL) faces challenges of intermittent client availability and computation/communication efficiency. As a result, only a small subset of clients can participate in FL at a given time. It is important to understand how…

Machine Learning · Computer Science 2024-12-31 Shiqiang Wang , Mingyue Ji

Federated learning (FL) allows multiple clients to collectively train a high-performance global model without sharing their private data. However, the key challenge in federated learning is that the clients have significant statistical…

Machine Learning · Computer Science 2022-03-23 Liang Gao , Huazhu Fu , Li Li , Yingwen Chen , Ming Xu , Cheng-Zhong Xu

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 (FL) allows multiple clients cooperatively train models without disclosing local data. However, the existing works fail to address all these practical concerns in FL: limited communication resources, dynamic network…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-12-20 Zhida Jiang , Yang Xu , Hongli Xu , Zhiyuan Wang , Chen Qian

With the rapid development of the Internet of Things (IoT), AI model training on private data such as human sensing data is highly desired. Federated learning (FL) has emerged as a privacy-preserving distributed training framework for this…

Machine Learning · Computer Science 2026-01-27 Kaile Wang , Jiannong Cao , Yu Yang , Xiaoyin Li , Yinfeng Cao

Federated learning (FL) has emerged as a promising paradigm for privacy-preserving distributed machine learning, but faces challenges with heterogeneous data distributions across clients. This paper presents FedSat, a novel FL approach…

Machine Learning · Computer Science 2024-12-31 Sujit Chowdhury , Raju Halder

Federated learning often suffers from slow and unstable convergence due to the heterogeneous characteristics of participating client datasets. Such a tendency is aggravated when the client participation ratio is low since the information…

Machine Learning · Computer Science 2024-04-02 Geeho Kim , Jinkyu Kim , Bohyung Han

Federated Learning (FL) enables collaborative model training without centralizing data. However, real-world deployments must simultaneously address statistical heterogeneity across client data (non-IID), system heterogeneity in device…

Machine Learning · Computer Science 2026-05-21 Chaimaa Medjadji , Sylvain Kubler , Yves Le Traon , Guilain Leduc , Sadi Alawadi , Feras M. Awaysheh

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

Device heterogeneity poses major challenges in Federated Learning (FL), where resource-constrained clients slow down synchronous schemes that wait for all updates before aggregation. Asynchronous FL addresses this by incorporating updates…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-13 Samaneh Mohammadi , Iraklis Symeonidis , Ali Balador , Francesco Flammini

In federated learning (FL), the multi-step update and data heterogeneity among clients often lead to a loss landscape with sharper minima, degenerating the performance of the resulted global model. Prevalent federated approaches incorporate…

Machine Learning · Computer Science 2024-05-30 Ziqing Fan , Shengchao Hu , Jiangchao Yao , Gang Niu , Ya Zhang , Masashi Sugiyama , Yanfeng Wang

Federated learning (FL) is severely challenged by non-independent and identically distributed (non-IID) client data, a problem that degrades global model performance, especially in multimodal perception settings. Conventional methods often…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Jing Liu , Zhengliang Guo , Yan Wang , Xiaoguang Zhu , Yao Du , Zehua Wang , Victor C. M. Leung

Federated Learning (FL) is a collaborative machine learning technique to train a global model without obtaining clients' private data. The main challenges in FL are statistical diversity among clients, limited computing capability among…

Machine Learning · Computer Science 2023-03-07 Xiaofeng Liu , Yinchuan Li , Qing Wang , Xu Zhang , Yunfeng Shao , Yanhui Geng

Federated Learning (FL) is a powerful framework for privacy-preserving distributed learning. It enables multiple clients to collaboratively train a global model without sharing raw data. However, handling noisy labels in FL remains a major…

Machine Learning · Computer Science 2026-02-19 Seunghun Yu , Jin-Hyun Ahn , Joonhyuk Kang

Federated learning (FL) aims to minimize the communication complexity of training a model over heterogeneous data distributed across many clients. A common approach is local methods, where clients take multiple optimization steps over local…

Machine Learning · Computer Science 2023-04-18 Charlie Hou , Kiran K. Thekumparampil , Giulia Fanti , Sewoong Oh