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Federated learning (FL) is a decentralized machine learning technique that allows multiple entities to jointly train a model while preserving dataset privacy. However, its distributed nature has raised various security concerns, which have…

Cryptography and Security · Computer Science 2025-01-06 Nuno Neves

Federated Learning (FL) is a promising distributed learning approach that enables multiple clients to collaboratively train a shared global model. However, recent studies show that FL is vulnerable to various poisoning attacks, which can…

Cryptography and Security · Computer Science 2023-10-23 Xinyu Zhang , Qingyu Liu , Zhongjie Ba , Yuan Hong , Tianhang Zheng , Feng Lin , Li Lu , Kui Ren

Wireless Federated Learning (FL) is an emerging distributed machine learning paradigm, particularly gaining momentum in domains with confidential and private data on mobile clients. However, the location-dependent performance, in terms of…

Machine Learning · Computer Science 2024-01-18 Mohamed Ads , Hesham ElSawy , Hossam S. Hassanein

Distributed machine learning (ML) over wireless networks hinges on accurate channel state information (CSI) and efficient exchange of high-dimensional model updates. These demands are governed by channel coherence time and bandwidth, which…

Information Theory · Computer Science 2026-03-10 Mehdi Karbalayghareh , David J. Love , Christopher G. Brinton

Over-the-air federated learning (OTA-FL) has emerged as an efficient mechanism that exploits the superposition property of the wireless medium and performs model aggregation for federated learning in the air. OTA-FL is naturally sensitive…

Information Theory · Computer Science 2022-05-20 Jiayu Mao , Haibo Yang , Peiwen Qiu , Jia Liu , Aylin Yener

Federated learning (FL) allows a large number of clients to collaboratively train machine learning (ML) models by sending only their local gradients to a central server for aggregation in each training iteration, without sending their raw…

Cryptography and Security · Computer Science 2023-05-23 Fucai Luo , Saif Al-Kuwari , Haiyan Wang , Xingfu Yan

Machine learning based network intrusion detection systems are vulnerable to adversarial attacks that degrade classification performance under both gradient-based and distribution shift threat models. Existing defenses typically apply…

Cryptography and Security · Computer Science 2026-03-03 Oluseyi Olukola , Nick Rahimi

Over-the-air (OTA) computation has recently emerged as a communication-efficient Federated Learning (FL) paradigm to train machine learning models over wireless networks. However, its performance is limited by the device with the worst SNR,…

Machine Learning · Computer Science 2024-02-05 Muhammad Faraz Ul Abrar , Nicolò Michelusi

Federated learning (FL) enables multiple parties to collaboratively train a machine learning model without sharing their data; rather, they train their own model locally and send updates to a central server for aggregation. Depending on how…

Machine Learning · Computer Science 2023-08-25 Mohammad Naseri , Yufei Han , Emiliano De Cristofaro

Federated learning (FL) enables multiple clients to collaboratively train machine learning models under the coordination of a central server, while maintaining privacy. However, the server cannot directly monitor the local training…

Machine Learning · Computer Science 2025-07-23 Binbin Ding , Penghui Yang , Sheng-Jun Huang

Federated learning is a distributed framework for training machine learning models over the data residing at mobile devices, while protecting the privacy of individual users. A major bottleneck in scaling federated learning to a large…

Machine Learning · Computer Science 2021-02-23 Jinhyun So , Basak Guler , A. Salman Avestimehr

Federated learning is a versatile framework for training models in decentralized environments. However, the trust placed in clients makes federated learning vulnerable to backdoor attacks launched by malicious participants. While many…

Cryptography and Security · Computer Science 2024-12-23 Borja Molina-Coronado

Due to the greatly improved capabilities of devices, massive data, and increasing concern about data privacy, Federated Learning (FL) has been increasingly considered for applications to wireless communication networks (WCNs). Wireless FL…

Cryptography and Security · Computer Science 2023-12-15 Yichen Wan , Youyang Qu , Wei Ni , Yong Xiang , Longxiang Gao , Ekram Hossain

Large models adaptation through Federated Learning (FL) addresses a wide range of use cases and is enabled by Parameter-Efficient Fine-Tuning techniques such as Low-Rank Adaptation (LoRA). However, this distributed learning paradigm faces…

Machine Learning · Computer Science 2026-02-19 Bastien Vuillod , Pierre-Alain Moellic , Jean-Max Dutertre

The decentralized and privacy-preserving nature of federated learning (FL) makes it vulnerable to backdoor attacks aiming to manipulate the behavior of the resulting model on specific adversary-chosen inputs. However, most existing defenses…

Cryptography and Security · Computer Science 2023-08-11 Siquan Huang , Yijiang Li , Chong Chen , Leyu Shi , Ying Gao

Federated Transfer Learning (FTL) is the most general variation of Federated Learning. According to this distributed paradigm, a feature learning pre-step is commonly carried out by only one party, typically the server, on publicly shared…

Machine Learning · Computer Science 2024-05-01 Marco Arazzi , Stefanos Koffas , Antonino Nocera , Stjepan Picek

Gradient inversion attack (or input recovery from gradient) is an emerging threat to the security and privacy preservation of Federated learning, whereby malicious eavesdroppers or participants in the protocol can recover (partially) the…

Cryptography and Security · Computer Science 2021-12-02 Yangsibo Huang , Samyak Gupta , Zhao Song , Kai Li , Sanjeev Arora

Due to its decentralized nature, Federated Learning (FL) lends itself to adversarial attacks in the form of backdoors during training. The goal of a backdoor is to corrupt the performance of the trained model on specific sub-tasks (e.g., by…

When implementing hierarchical federated learning over wireless networks, scalability assurance and the ability to handle both interference and device data heterogeneity are crucial. This work introduces a new two-level learning method…

Information Theory · Computer Science 2024-01-12 Seyed Mohammad Azimi-Abarghouyi , Viktoria Fodor

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…

Cryptography and Security · Computer Science 2024-04-22 Nick Galanis