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Aiming at privacy preservation, Federated Learning (FL) is an emerging machine learning approach enabling model training on decentralized devices or data sources. The learning mechanism of FL relies on aggregating parameter updates from…

机器学习 · 计算机科学 2024-05-21 Jiayan Chen , Zhirong Qian , Tianhui Meng , Xitong Gao , Tian Wang , Weijia Jia

Byzantine attacks present a critical challenge to Federated Learning (FL), where malicious participants can disrupt the training process, degrade model accuracy, and compromise system reliability. Traditional FL frameworks typically rely on…

机器学习 · 计算机科学 2025-03-17 Yufei Xia , Wenrui Yu , Qiongxiu Li

Federated learning (FL) enables multiple participants to train a global machine learning model without sharing their private training data. Peer-to-peer (P2P) FL advances existing centralized FL paradigms by eliminating the server that…

机器学习 · 计算机科学 2024-01-12 Zhangchen Xu , Fengqing Jiang , Luyao Niu , Jinyuan Jia , Radha Poovendran

Federated Learning (FL) distributes model training across clients who retain their data locally, but this architecture exposes a fundamental vulnerability: Byzantine clients can inject arbitrarily corrupted updates that degrade or subvert…

机器学习 · 计算机科学 2025-12-15 Aditya Tripathi , Karan Sharma , Rahul Mishra , Tapas Kumar Maiti

Byzantine-robust Federated Learning (FL) aims to counter malicious clients and train an accurate global model while maintaining an extremely low attack success rate. Most existing systems, however, are only robust when most of the clients…

密码学与安全 · 计算机科学 2023-11-17 Rui Wang , Xingkai Wang , Huanhuan Chen , Jérémie Decouchant , Stjepan Picek , Nikolaos Laoutaris , Kaitai Liang

Federated learning enables training collaborative machine learning models at scale with many participants whilst preserving the privacy of their datasets. Standard federated learning techniques are vulnerable to Byzantine failures, biased…

机器学习 · 统计学 2019-09-12 Luis Muñoz-González , Kenneth T. Co , Emil C. Lupu

Federated learning (FL) shows great promise in large-scale machine learning but introduces new privacy and security challenges. We propose ByITFL and LoByITFL, two novel FL schemes that enhance resilience against Byzantine users while…

机器学习 · 计算机科学 2025-06-17 Yue Xia , Christoph Hofmeister , Maximilian Egger , Rawad Bitar

In federated learning (FL), profiling and verifying each client is inherently difficult, which introduces a significant security vulnerability: malicious clients, commonly referred to as Byzantines, can degrade the accuracy of the global…

机器学习 · 计算机科学 2026-05-07 Emre Ozfatura , Kerem Ozfatura , Baturalp Buyukates , Mert Coskuner , Alptekin Kupcu , Deniz Gunduz

Recent studies have revealed that federated learning (FL), once considered secure due to clients not sharing their private data with the server, is vulnerable to attacks such as client-side training data distribution inference, where a…

密码学与安全 · 计算机科学 2024-04-05 Yichang Xu , Ming Yin , Minghong Fang , Neil Zhenqiang Gong

The advancement of AI models, especially those powered by deep learning, faces significant challenges in data-sensitive industries like healthcare and finance due to the distributed and private nature of data. Federated Learning (FL) and…

密码学与安全 · 计算机科学 2025-01-14 Yongming Fan , Rui Zhu , Zihao Wang , Chenghong Wang , Haixu Tang , Ye Dong , Hyunghoon Cho , Lucila Ohno-Machado

Federated Learning (FL) enables decentralized model training without sharing raw data, offering strong privacy guarantees. However, existing FL protocols struggle to defend against Byzantine participants, maintain model utility under…

密码学与安全 · 计算机科学 2025-09-11 Charuka Herath , Yogachandran Rahulamathavan , Varuna De Silva , Sangarapillai Lambotharan

Federated learning (FL) enables collaborative model training while preserving data privacy. However, it remains vulnerable to malicious clients who compromise model integrity through Byzantine attacks, data poisoning, or adaptive…

机器学习 · 计算机科学 2026-05-13 Abolfazl Younesi , Leon Kiss , Zahra Najafabadi Samani , Juan Aznar Poveda , Thomas Fahringer

Federated Learning (FL) is a distributed machine learning paradigm where data is distributed among clients who collaboratively train a model in a computation process coordinated by a central server. By assigning a weight to each client…

机器学习 · 计算机科学 2021-05-19 Amit Portnoy , Yoav Tirosh , Danny Hendler

Federated Learning (FL) allows multiple participating clients to train machine learning models collaboratively while keeping their datasets local and only exchanging the gradient or model updates with a coordinating server. Existing FL…

密码学与安全 · 计算机科学 2024-12-17 Xiaolan Gu , Ming Li , Li Xiong

Federated learning has emerged as a popular paradigm for collaboratively training a model from data distributed among a set of clients. This learning setting presents, among others, two unique challenges: how to protect privacy of the…

密码学与安全 · 计算机科学 2021-05-07 Hanieh Hashemi , Yongqin Wang , Chuan Guo , Murali Annavaram

The increasing popularity of the federated learning (FL) framework due to its success in a wide range of collaborative learning tasks also induces certain security concerns. Among many vulnerabilities, the risk of Byzantine attacks is of…

机器学习 · 计算机科学 2024-01-02 Kerem Ozfatura , Emre Ozfatura , Alptekin Kupcu , Deniz Gunduz

Motivated by the ever-increasing concerns on personal data privacy and the rapidly growing data volume at local clients, federated learning (FL) has emerged as a new machine learning setting. An FL system is comprised of a central parameter…

密码学与安全 · 计算机科学 2022-08-04 Xiang Ma , Haijian Sun , Rose Qingyang Hu , Yi Qian

In this paper, we propose BR-MTRL, a Byzantine-resilient multi-task representation learning framework that handles faulty or malicious agents. Our approach leverages representation learning through a shared neural network model, where all…

机器学习 · 计算机科学 2025-11-03 Tuan Le , Shana Moothedath

Decentralized federated learning (DFL) enables collaborative model training without centralized trust, but it remains vulnerable to Byzantine clients that poison gradients under heterogeneous (Non-IID) data. Existing defenses face a…

机器学习 · 计算机科学 2025-12-16 Animesh Mishra

Federated learning (FL) enables decentralized machine learning without sharing raw data, allowing multiple clients to collaboratively learn a global model. However, studies reveal that privacy leakage is possible under commonly adopted FL…

机器学习 · 计算机科学 2025-06-16 Kai Yue , Richeng Jin , Chau-Wai Wong , Huaiyu Dai