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Federated Learning (FL) is a decentralized machine learning framework that enables collaborative model training while respecting data privacy. In various applications, non-uniform availability or participation of users is unavoidable due to…

Machine Learning · Computer Science 2023-09-26 Periklis Theodoropoulos , Konstantinos E. Nikolakakis , Dionysis Kalogerias

Federated learning (FL) offers a solution to train a global machine learning model while still maintaining data privacy, without needing access to data stored locally at the clients. However, FL suffers performance degradation when client…

Machine Learning · Computer Science 2021-08-13 Zihan Chen , Kai Fong Ernest Chong , Tony Q. S. Quek

Federated learning (FL) aims to train models collaboratively across clients without sharing data for privacy-preserving. However, one major challenge is the data heterogeneity issue, which refers to the biased labeling preferences at…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Huan Wang , Haoran Li , Huaming Chen , Jun Yan , Jiahua Shi , Jun Shen

Federated learning (FL) enables multiple clients to collaboratively train a global model while keeping local data decentralized. Data heterogeneity (non-IID) across clients has imposed significant challenges to FL, which makes local models…

Machine Learning · Computer Science 2025-04-22 Yuting He , Yiqiang Chen , XiaoDong Yang , Hanchao Yu , Yi-Hua Huang , Yang Gu

In decentralized federated learning (DFL), the presence of abnormal clients, often caused by noisy or poisoned data, can significantly disrupt the learning process and degrade the overall robustness of the model. Previous methods on this…

Machine Learning · Computer Science 2025-12-04 Shuyuan Wu , Feifei Wang , Yuan Gao , Rui Wang , Hansheng Wang

Federated learning is a distributed paradigm that allows multiple parties to collaboratively train deep models without exchanging the raw data. However, the data distribution among clients is naturally non-i.i.d., which leads to severe…

Machine Learning · Computer Science 2023-01-31 Tianfei Zhou , Ender Konukoglu

As a promising paradigm federated Learning (FL) is widely used in privacy-preserving machine learning, which allows distributed devices to collaboratively train a model while avoiding data transmission among clients. Despite its immense…

Machine Learning · Computer Science 2023-08-29 Jinglong Shen , Xiucheng Wang , Nan Cheng , Longfei Ma , Conghao Zhou , Yuan Zhang

Although deep learning has revolutionized domains such as natural language processing and computer vision, its dependence on centralized datasets raises serious privacy concerns. Federated learning addresses this issue by enabling multiple…

Machine Learning · Computer Science 2025-11-19 Andreas Lutz , Gabriele Steidl , Karsten Müller , Wojciech Samek

Federated learning (FL) is a popular framework for training an AI model using distributed mobile data in a wireless network. It features data parallelism by distributing the learning task to multiple edge devices while attempting to…

Machine Learning · Computer Science 2022-02-08 Dingzhu Wen , Ki-Jun Jeon , Kaibin Huang

In order to meet the extremely heterogeneous requirements of the next generation wireless communication networks, research community is increasingly dependent on using machine learning solutions for real-time decision-making and radio…

Signal Processing · Electrical Eng. & Systems 2022-01-11 Debaditya Shome , Omer Waqar , Wali Ullah Khan

Federated Learning (FL), as a distributed learning paradigm, trains models over distributed clients' data. FL is particularly beneficial for distributed training of Diffusion Models (DMs), which are high-quality image generators that…

Machine Learning · Computer Science 2025-07-10 Qianyu Long , Qiyuan Wang , Christos Anagnostopoulos , Daning Bi

Federated Learning (FL) is a well-known framework for successfully performing a learning task in an edge computing scenario where the devices involved have limited resources and incomplete data representation. The basic assumption of FL is…

Machine Learning · Computer Science 2023-12-08 Lorenzo Valerio , Chiara Boldrini , Andrea Passarella , János Kertész , Márton Karsai , Gerardo Iñiguez

Federated Learning (FL) has emerged as a key approach for distributed machine learning, enhancing online personalization while ensuring user data privacy. Instead of sending private data to a central server as in traditional approaches, FL…

Information Retrieval · Computer Science 2023-09-19 Francesco Fabbri , Xianghang Liu , Jack R. McKenzie , Bartlomiej Twardowski , Tri Kurniawan Wijaya

In federated learning, federated unlearning is a technique that provides clients with a rollback mechanism that allows them to withdraw their data contribution without training from scratch. However, existing research has not considered…

Machine Learning · Computer Science 2024-12-23 Xinrui Yu , Wenbin Pei , Bing Xue , Qiang Zhang

The performance of Federated Learning (FL) hinges on the effectiveness of utilizing knowledge from distributed datasets. Traditional FL methods adopt an aggregate-then-adapt framework, where clients update local models based on a global…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Yuan Wang , Huazhu Fu , Renuga Kanagavelu , Qingsong Wei , Yong Liu , Rick Siow Mong Goh

Federated learning (FL) is a rapidly growing privacy-preserving collaborative machine learning paradigm. In practical FL applications, local data from each data silo reflect local usage patterns. Therefore, there exists heterogeneity of…

Machine Learning · Computer Science 2022-02-01 Shenglai Zeng , Zonghang Li , Hongfang Yu , Yihong He , Zenglin Xu , Dusit Niyato , Han Yu

Recent years have witnessed a huge demand for artificial intelligence and machine learning applications in wireless edge networks to assist individuals with real-time services. Owing to the practical setting and privacy preservation of…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-08 Shuai Wang , Yanqing Xu , Yanyi Yuan , Tony Q. S. Quek

Federated Learning is a framework that jointly trains a model \textit{with} complete knowledge on a remotely placed centralized server, but \textit{without} the requirement of accessing the data stored in distributed machines. Some work…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-10-26 Jia Qian , Lars Kai Hansen , Xenofon Fafoutis , Prayag Tiwari , Hari Mohan Pandey

Federated learning is a promising collaborative and privacy-preserving machine learning approach in data-rich smart cities. Nevertheless, the inherent heterogeneity of these urban environments presents a significant challenge in selecting…

Computer Science and Game Theory · Computer Science 2024-05-02 Osama Wehbi , Sarhad Arisdakessian , Mohsen Guizani , Omar Abdel Wahab , Azzam Mourad , Hadi Otrok , Hoda Al khzaimi , Bassem Ouni

Native AI support is a key objective in the evolution of 6G networks, with Federated Learning (FL) emerging as a promising paradigm. FL allows decentralized clients to collaboratively train an AI model without directly sharing their data,…

Networking and Internet Architecture · Computer Science 2025-08-15 Wenxuan Ye , Xueli An , Junfan Wang , Xueqiang Yan , Georg Carle