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Federated learning has created a decentralized method to train a machine learning model without needing direct access to client data. The main goal of a federated learning architecture is to protect the privacy of each client while still…

Cryptography and Security · Computer Science 2023-12-11 Marc Vucovich , Devin Quinn , Kevin Choi , Christopher Redino , Abdul Rahman , Edward Bowen

Federated Learning (FL) enables decentralized machine learning while preserving data privacy. This paper proposes a novel client selection framework that integrates differential privacy and fault tolerance. The adaptive client selection…

Machine Learning · Computer Science 2025-02-04 William Marfo , Deepak K. Tosh , Shirley V. Moore

We consider distributed kernel bandits where $N$ agents aim to collaboratively maximize an unknown reward function that lies in a reproducing kernel Hilbert space. Each agent sequentially queries the function to obtain noisy observations at…

Machine Learning · Computer Science 2024-02-21 Nikola Pavlovic , Sudeep Salgia , Qing Zhao

This paper addresses the critical challenge of stochastic latent heterogeneity in online decision-making, where individuals' responses to actions vary not only with observable contexts but also with unobserved, randomly realized subgroups.…

Machine Learning · Computer Science 2025-11-17 Elynn Chen , Xi Chen , Wenbo Jing , Xiao Liu

Federated Learning (FL) is one of the hot research topics, and it utilizes Machine Learning (ML) in a distributed manner without directly accessing private data on clients. However, FL faces many challenges, including the difficulty to…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-05-02 Shadha Tabatabai , Ihab Mohammed , Basheer Qolomany , Abdullatif Albasser , Kashif Ahmad , Mohamed Abdallah , Ala Al-Fuqaha

Personalized Federated Learning (PFL) which collaboratively trains a federated model while considering local clients under privacy constraints has attracted much attention. Despite its popularity, it has been observed that existing PFL…

Machine Learning · Computer Science 2022-12-05 Tianchun Wang , Wei Cheng , Dongsheng Luo , Wenchao Yu , Jingchao Ni , Liang Tong , Haifeng Chen , Xiang Zhang

Federated learning (FL) is an appealing paradigm for learning a global model among distributed clients while preserving data privacy. Driven by the demand for high-quality user experiences, evaluating the well-trained global model after the…

Machine Learning · Computer Science 2024-04-02 Jingwen Tong , Zhenzhen Chen , Liqun Fu , Jun Zhang , Zhu Han

Federated Learning (FL) facilitates collaborative training of a shared global model without exposing clients' private data. In practical FL systems, clients (e.g., edge servers, smartphones, and wearables) typically have disparate system…

Machine Learning · Computer Science 2025-03-03 Leming Shen , Qiang Yang , Kaiyan Cui , Yuanqing Zheng , Xiao-Yong Wei , Jianwei Liu , Jinsong Han

In this paper, we study \emph{Federated Bandit}, a decentralized Multi-Armed Bandit problem with a set of $N$ agents, who can only communicate their local data with neighbors described by a connected graph $G$. Each agent makes a sequence…

Machine Learning · Computer Science 2021-04-08 Zhaowei Zhu , Jingxuan Zhu , Ji Liu , Yang Liu

In Federated Learning, we aim to train models across multiple computing units (users), while users can only communicate with a common central server, without exchanging their data samples. This mechanism exploits the computational power of…

Machine Learning · Computer Science 2020-10-26 Alireza Fallah , Aryan Mokhtari , Asuman Ozdaglar

Federated learning has recently gained popularity as a framework for distributed clients to collaboratively train a machine learning model using local data. While traditional federated learning relies on a central server for model…

Machine Learning · Computer Science 2025-09-03 I-Cheng Lin , Osman Yagan , Carlee Joe-Wong

Federated learning has emerged as an essential paradigm for distributed multi-source data analysis under privacy concerns. Most existing federated learning methods focus on the ``static" datasets. However, in many real-world applications,…

Machine Learning · Statistics 2025-08-12 Jingmao Li , Yuanxing Chen , Shuangge Ma , Kuangnan Fang

Federated learning (FL) is a distributed training paradigm that enables collaborative learning across clients without sharing local data, thereby preserving privacy. However, the increasing scale and complexity of modern deep models often…

Machine Learning · Computer Science 2025-05-20 Honggu Kang , Seohyeon Cha , Joonhyuk Kang

In evolving cyber landscapes, the detection of malicious URLs calls for cooperation and knowledge sharing across domains. However, collaboration is often hindered by concerns over privacy and business sensitivities. Federated learning…

Cryptography and Security · Computer Science 2023-12-07 Yujie Li , Yanbin Wang , Haitao Xu , Zhenhao Guo , Fan Zhang , Ruitong Liu , Wenrui Ma

Federated learning (FL) aims to collaboratively train a shared model across multiple clients without transmitting their local data. Data heterogeneity is a critical challenge in realistic FL settings, as it causes significant performance…

Machine Learning · Computer Science 2023-11-15 Yuwei Wang , Runhan Li , Hao Tan , Xuefeng Jiang , Sheng Sun , Min Liu , Bo Gao , Zhiyuan Wu

Federated learning (FL) is a distributed learning paradigm that enables multiple clients to learn a powerful global model by aggregating local training. However, the performance of the global model is often hampered by non-i.i.d.…

Machine Learning · Computer Science 2023-08-21 Chun-Mei Feng , Kai Yu , Nian Liu , Xinxing Xu , Salman Khan , Wangmeng Zuo

Federated Learning is a distributed machine-learning environment that allows clients to learn collaboratively without sharing private data. This is accomplished by exchanging parameters. However, the differences in data distributions and…

Machine Learning · Computer Science 2023-03-17 Kuang Hangdong , Mi Bo

Federated learning is a distributed machine learning paradigm in which a large number of clients coordinate with a central server to learn a model without sharing their own training data. Standard federated optimization methods such as…

Federated Learning (FL) facilitates collaborative model training among distributed clients while ensuring that raw data remains on local devices.Despite this advantage, FL systems are still exposed to risks from malicious or unreliable…

Cryptography and Security · Computer Science 2026-01-30 Deepthy K Bhaskar , Minimol B , Binu V P

Federated learning (FL) enables massive distributed Information and Communication Technology (ICT) devices to learn a global consensus model without any participants revealing their own data to the central server. However, the practicality,…

Machine Learning · Computer Science 2020-03-31 Zhikun Chen , Daofeng Li , Ming Zhao , Sihai Zhang , Jinkang Zhu