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Related papers: FedSCAM (Federated Sharpness-Aware Minimization wi…

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Federated Learning (FL) is a promising distributed machine learning approach that enables collaborative training of a global model using multiple edge devices. The data distributed among the edge devices is highly heterogeneous. Thus, FL…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-16 Ji Liu , Beichen Ma , Qiaolin Yu , Ruoming Jin , Jingbo Zhou , Yang Zhou , Huaiyu Dai , Haixun Wang , Dejing Dou , Patrick Valduriez

Federated Learning (FL) enables collaborative model training across distributed clients while preserving data privacy, yet faces challenges in non-independent and identically distributed (non-IID) settings due to client drift, which impairs…

Machine Learning · Computer Science 2026-02-12 Mohammad Partohaghighi , Roummel Marcia , Bruce J. West , YangQuan Chen

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 (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

Graph Neural Networks (GNNs) have shown superior performance in node classification. However, GNNs perform poorly in the Few-Shot Node Classification (FSNC) task that requires robust generalization to make accurate predictions for unseen…

Machine Learning · Computer Science 2024-10-23 Yihong Luo , Yuhan Chen , Siya Qiu , Yiwei Wang , Chen Zhang , Yan Zhou , Xiaochun Cao , Jing Tang

Many existing FL methods assume clients with fully-labeled data, while in realistic settings, clients have limited labels due to the expensive and laborious process of labeling. Limited labeled local data of the clients often leads to their…

Machine Learning · Computer Science 2023-07-19 Yae Jee Cho , Gauri Joshi , Dimitrios Dimitriadis

Data heterogeneity poses a fundamental challenge in federated learning (FL), especially when clients differ not only in distribution but also in the reliability of their predictions across individual examples. While personalized FL (PFL)…

Machine Learning · Computer Science 2025-09-29 Amr Abourayya , Jens Kleesiek , Bharat Rao , Michael Kamp

Statistical heterogeneity is a root cause of tension among accuracy, fairness, and robustness of federated learning (FL), and is key in paving a path forward. Personalized FL (PFL) is an approach that aims to reduce the impact of…

Machine Learning · Computer Science 2024-07-24 Shengkun Zhu , Jinshan Zeng , Sheng Wang , Yuan Sun , Xiaodong Li , Yuan Yao , Zhiyong Peng

Standard federated learning approaches suffer when client data distributions have sufficient heterogeneity. Recent methods addressed the client data heterogeneity issue via personalized federated learning (PFL) - a class of FL algorithms…

Machine Learning · Computer Science 2024-04-04 Rishub Tamirisa , Chulin Xie , Wenxuan Bao , Andy Zhou , Ron Arel , Aviv Shamsian

Federated learning (FL) is a distributed learning method that offers medical institutes the prospect of collaboration in a global model while preserving the privacy of their patients. Although most medical centers conduct similar medical…

Machine Learning · Computer Science 2022-07-08 Yousef Yeganeh , Azade Farshad , Johann Boschmann , Richard Gaus , Maximilian Frantzen , Nassir Navab

Federated Learning (FL) is a distributed training paradigm that enables clients scattered across the world to cooperatively learn a global model without divulging confidential data. However, FL faces a significant challenge in the form of…

Machine Learning · Computer Science 2023-11-16 Xidong Wu , Wan-Yi Lin , Devin Willmott , Filipe Condessa , Yufei Huang , Zhenzhen Li , Madan Ravi Ganesh

Sharpness-Aware Minimization (SAM) is an optimization method that improves generalization performance of machine learning models. Despite its superior generalization, SAM has not been actively used in real-world applications due to its…

Machine Learning · Computer Science 2025-03-17 Junhyuk Jo , Jihyun Lim , Sunwoo Lee

Federated learning (FL) is a distributed collaborative learning method, where multiple clients learn together by sharing gradient updates instead of raw data. However, it is well-known that FL is vulnerable to manipulated updates from…

Machine Learning · Computer Science 2025-03-06 Dimitar Chakarov , Nikita Tsoy , Kristian Minchev , Nikola Konstantinov

Federated learning (FL) is a distributed learning technique that trains a shared model over distributed data in a privacy-preserving manner. Unfortunately, FL's performance degrades when there is (i) variability in client characteristics in…

Machine Learning · Computer Science 2021-10-28 Muhammad Tahir Munir , Muhammad Mustansar Saeed , Mahad Ali , Zafar Ayyub Qazi , Ihsan Ayyub Qazi

Foundation models (FMs) exhibit remarkable generalization but require adaptation to downstream tasks, particularly in privacy-sensitive applications. Due to data privacy regulations, cloud-based FMs cannot directly access private edge data,…

Machine Learning · Computer Science 2025-08-25 Guangyu Sun , Jingtao Li , Weiming Zhuang , Chen Chen , Chen Chen , Lingjuan Lyu

Federated learning (FL) enables distributed devices to collaboratively train machine learning models while maintaining data privacy. However, the heterogeneous hardware capabilities of devices often result in significant training delays, as…

Machine Learning · Computer Science 2025-09-23 Letian Zhang , Bo Chen , Jieming Bian , Lei Wang , Jie Xu

Federated learning (FL) is a distributed learning paradigm that maximizes the potential of data-driven models for edge devices without sharing their raw data. However, devices often have non-independent and identically distributed (non-IID)…

Machine Learning · Computer Science 2023-08-31 Zijian Li , Zehong Lin , Jiawei Shao , Yuyi Mao , Jun Zhang

Mobile devices, including smartphones and laptops, generate decentralized and heterogeneous data, presenting significant challenges for traditional centralized machine learning models due to substantial communication costs and privacy…

Machine Learning · Computer Science 2024-11-12 Mayank Kumar Kundalwal , Anurag Saraswat , Ishan Mishra , Deepak Mishra

Federated Learning (FL) is an emerging machine learning framework that enables multiple clients (coordinated by a server) to collaboratively train a global model by aggregating the locally trained models without sharing any client's…

Machine Learning · Computer Science 2025-12-10 M Yashwanth , Gaurav Kumar Nayak , Harsh Rangwani , Arya Singh , R. Venkatesh Babu , Anirban Chakraborty

This work considers the category distribution heterogeneity in federated learning. This issue is due to biased labeling preferences at multiple clients and is a typical setting of data heterogeneity. To alleviate this issue, most previous…

Machine Learning · Computer Science 2023-05-31 Rui Ye , Mingkai Xu , Jianyu Wang , Chenxin Xu , Siheng Chen , Yanfeng Wang