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Federated learning (FL) combined with local differential privacy (LDP) enables privacy-preserving model training across decentralized data sources. However, the decentralized data-management paradigm leaves LDPFL vulnerable to participants…

密码学与安全 · 计算机科学 2025-09-08 Zijian Wang , Wei Tong , Tingxuan Han , Haoyu Chen , Tianling Zhang , Yunlong Mao , Sheng Zhong

Test-time adaptation (TTA) updates the model weights during the inference stage using testing data to enhance generalization. However, this practice exposes TTA to adversarial risks. Existing studies have shown that when TTA is updated with…

机器学习 · 计算机科学 2025-03-03 Yongyi Su , Yushu Li , Nanqing Liu , Kui Jia , Xulei Yang , Chuan-Sheng Foo , Xun Xu

Manipulation of local training data and local updates, i.e., the poisoning attack, is the main threat arising from the collaborative nature of the federated learning (FL) paradigm. Most existing poisoning attacks aim to manipulate local…

机器学习 · 计算机科学 2025-05-30 Huazi Pan , Yanjun Zhang , Leo Yu Zhang , Scott Adams , Abbas Kouzani , Suiyang Khoo

Federated learning (FL) is a feasible technique to learn personalized recommendation models from decentralized user data. Unfortunately, federated recommender systems are vulnerable to poisoning attacks by malicious clients. Existing…

信息检索 · 计算机科学 2022-02-11 Chuhan Wu , Fangzhao Wu , Tao Qi , Yongfeng Huang , Xing Xie

Federated learning is used to train a shared model in a decentralized way without clients sharing private data with each other. Federated learning systems are susceptible to poisoning attacks when malicious clients send false updates to the…

机器学习 · 计算机科学 2023-08-21 Sungwon Han , Sungwon Park , Fangzhao Wu , Sundong Kim , Bin Zhu , Xing Xie , Meeyoung Cha

Federated learning is vulnerable to poisoning attacks in which malicious clients poison the global model via sending malicious model updates to the server. Existing defenses focus on preventing a small number of malicious clients from…

密码学与安全 · 计算机科学 2022-10-21 Xiaoyu Cao , Jinyuan Jia , Zaixi Zhang , Neil Zhenqiang Gong

Federated learning combines local updates from clients to produce a global model, which is susceptible to poisoning attacks. Most previous defense strategies relied on vectors derived from projections of local updates on a Euclidean space;…

机器学习 · 计算机科学 2024-04-19 Sungwon Han , Hyeonho Song , Sungwon Park , Meeyoung Cha

Federated learning is an emerging learning paradigm where multiple clients collaboratively train a machine learning model in a privacy-preserving manner. Personalized federated learning extends this paradigm to overcome heterogeneity across…

机器学习 · 计算机科学 2023-04-19 Hongxia Li , Zhongyi Cai , Jingya Wang , Jiangnan Tang , Weiping Ding , Chin-Teng Lin , Ye Shi

Personalized federated learning algorithms have shown promising results in adapting models to various distribution shifts. However, most of these methods require labeled data on testing clients for personalization, which is usually…

机器学习 · 计算机科学 2023-10-31 Wenxuan Bao , Tianxin Wei , Haohan Wang , Jingrui He

In the evolving landscape of Federated Learning (FL), a new type of attacks concerns the research community, namely Data Poisoning Attacks, which threaten the model integrity by maliciously altering training data. This paper introduces a…

密码学与安全 · 计算机科学 2024-04-22 Nick Galanis

Federated learning is a distributed framework designed to address privacy concerns. However, it introduces new attack surfaces, which are especially prone when data is non-Independently and Identically Distributed. Existing approaches fail…

密码学与安全 · 计算机科学 2025-05-27 Hyejun Jeong , Hamin Son , Seohu Lee , Jayun Hyun , Tai-Myoung Chung

Federated Learning (FL) enables collaborative model training across distributed clients without sharing raw data, making it ideal for privacy-sensitive applications. However, FL models often suffer performance degradation due to…

Federated learning distributes model training among a multitude of agents, who, guided by privacy concerns, perform training using their local data but share only model parameter updates, for iterative aggregation at the server. In this…

机器学习 · 计算机科学 2019-11-26 Arjun Nitin Bhagoji , Supriyo Chakraborty , Prateek Mittal , Seraphin Calo

Federated learning (FL) allows multiple clients to collaboratively train a global machine learning model with coordination from a central server, without needing to share their raw data. This approach is particularly appealing in the era of…

密码学与安全 · 计算机科学 2025-07-02 Wenjin Mo , Zhiyuan Li , Minghong Fang , Mingwei Fang

Federated learning is known to be vulnerable to both security and privacy issues. Existing research has focused either on preventing poisoning attacks from users or on concealing the local model updates from the server, but not both.…

机器学习 · 计算机科学 2024-06-05 Truc Nguyen , My T. Thai

Federated Learning (FL) is a decentralized machine learning method that enables participants to collaboratively train a model without sharing their private data. Despite its privacy and scalability benefits, FL is susceptible to backdoor…

密码学与安全 · 计算机科学 2024-09-11 Yujie Zhang , Neil Gong , Michael K. Reiter

Federated learning (FL) enables collaborative model training while preserving data privacy, but its decentralized nature exposes it to client-side data poisoning attacks (DPAs) and model poisoning attacks (MPAs) that degrade global model…

密码学与安全 · 计算机科学 2025-02-07 Heyi Zhang , Yule Liu , Xinlei He , Jun Wu , Tianshuo Cong , Xinyi Huang

Federated Learning (FL) exposes vulnerabilities to targeted poisoning attacks that aim to cause misclassification specifically from the source class to the target class. However, using well-established defense frameworks, the poisoning…

密码学与安全 · 计算机科学 2025-03-25 Shihua Sun , Shridatt Sugrim , Angelos Stavrou , Haining Wang

Federated learning (FL) is vulnerable to poisoning attacks, where adversaries corrupt the global aggregation results and cause denial-of-service (DoS). Unlike recent model poisoning attacks that optimize the amplitude of malicious…

机器学习 · 计算机科学 2024-09-27 Hangtao Zhang , Zeming Yao , Leo Yu Zhang , Shengshan Hu , Chao Chen , Alan Liew , Zhetao Li

Federated learning allows multiple users to collaboratively train a shared classification model while preserving data privacy. This approach, where model updates are aggregated by a central server, was shown to be vulnerable to poisoning…

机器学习 · 计算机科学 2020-12-17 Chien-Lun Chen , Leana Golubchik , Marco Paolieri
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