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Federated learning (FL) offers a privacy-preserving collaborative approach for training models in wireless networks, with channel estimation emerging as a promising application. Despite extensive studies on FL-empowered channel estimation,…

Machine Learning · Computer Science 2024-07-31 Zexin Fang , Bin Han , Hans D. Schotten

Federated learning (FL) is recognized as a key enabling technology to provide intelligent services for future wireless networks and industrial systems with delay and privacy guarantees. However, the performance of wireless FL can be…

Information Theory · Computer Science 2021-05-25 Shaoming Huang , Yong Zhou , Ting Wang , Yuanming Shi

Federated learning (FL) is a machine learning paradigm that enables multiple data holders to collaboratively train a machine learning model without sharing their training data with external parties. In this paradigm, workers locally update…

Machine Learning · Computer Science 2025-09-08 Johan Erbani , Sonia Ben Mokhtar , Pierre-Edouard Portier , Elod Egyed-Zsigmond , Diana Nurbakova

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…

Machine Learning · Computer Science 2025-11-03 Tuan Le , Shana Moothedath

Federated learning systems are vulnerable to attacks from malicious clients. As the central server in the system cannot govern the behaviors of the clients, a rogue client may initiate an attack by sending malicious model updates to the…

Machine Learning · Computer Science 2020-02-04 Suyi Li , Yong Cheng , Wei Wang , Yang Liu , Tianjian Chen

We study robust distributed learning that involves minimizing a non-convex loss function with saddle points. We consider the Byzantine setting where some worker machines have abnormal or even arbitrary and adversarial behavior. In this…

Machine Learning · Computer Science 2020-07-30 Dong Yin , Yudong Chen , Kannan Ramchandran , Peter Bartlett

Federated learning has attracted increasing attention at recent large-scale optimization and machine learning research and applications, but is also vulnerable to Byzantine clients that can send any erroneous signals. Robust aggregators are…

Machine Learning · Computer Science 2025-10-07 Ziyi Chen , Su Zhang , Heng Huang

While machine learning is going through an era of celebrated success, concerns have been raised about the vulnerability of its backbone: stochastic gradient descent (SGD). Recent approaches have been proposed to ensure the robustness of…

Machine Learning · Statistics 2018-07-19 El Mahdi El Mhamdi , Rachid Guerraoui , Sébastien Rouault

Federated learning is a prominent framework that enables clients (e.g., mobile devices or organizations) to train a collaboratively global model under a central server's orchestration while keeping local training datasets' privacy. However,…

Machine Learning · Computer Science 2021-07-20 Farnaz Tahmasebian , Jian Lou , Li Xiong

Adversarial attacks attempt to disrupt the training, retraining and utilizing of artificial intelligence and machine learning models in large-scale distributed machine learning systems. This causes security risks on its prediction outcome.…

Cryptography and Security · Computer Science 2021-09-07 Yusen Wu , Hao Chen , Xin Wang , Chao Liu , Phuong Nguyen , Yelena Yesha

In this paper, we study a linear bandit optimization problem in a federated setting where a large collection of distributed agents collaboratively learn a common linear bandit model. Standard federated learning algorithms applied to this…

Machine Learning · Computer Science 2022-04-05 Ali Jadbabaie , Haochuan Li , Jian Qian , Yi Tian

Federated Learning enables entities to collaboratively learn a shared prediction model while keeping their training data locally. It prevents data collection and aggregation and, therefore, mitigates the associated privacy risks. However,…

Cryptography and Security · Computer Science 2020-10-16 Raouf Kerkouche , Gergely Ács , Claude Castelluccia

Federated learning (FL) allows a set of agents to collaboratively train a model without sharing their potentially sensitive data. This makes FL suitable for privacy-preserving applications. At the same time, FL is susceptible to adversarial…

Machine Learning · Computer Science 2021-08-02 Mustafa Safa Ozdayi , Murat Kantarcioglu , Yulia R. Gel

Federated Learning (FL) enables collaborative model training without sharing raw data. However, shared local model updates remain vulnerable to inference and poisoning attacks. Secure aggregation schemes have been proposed to mitigate these…

Machine Learning · Computer Science 2026-02-27 Arnab Nath , Harsh Kasyap

Federated Learning (FL) is susceptible to poisoning attacks, wherein compromised clients manipulate the global model by modifying local datasets or sending manipulated model updates. Experienced defenders can readily detect and mitigate the…

Cryptography and Security · Computer Science 2024-06-19 Yi Liu , Cong Wang , Xingliang Yuan

Federated Learning (FL) enables multiple clients to collaboratively train a shared model without exposing local data. However, backdoor attacks pose a significant threat to FL. These attacks aim to implant a stealthy trigger into the global…

Machine Learning · Computer Science 2026-01-06 Chenyu Hu , Qiming Hu , Sinan Chen , Nianyu Li , Mingyue Zhang , Jialong Li

Federated learning allows clients to collaboratively train a global model without uploading raw data for privacy preservation. This feature, i.e., the inability to review participants' datasets, has recently been found responsible for…

Machine Learning · Computer Science 2023-12-19 Yihang Lin , Pengyuan Zhou , Zhiqian Wu , Yong Liao

We propose a Byzantine-resilient federated conformal prediction (FCP) method that leverages partial model sharing, where only a subset of model parameters is exchanged each round. Unlike existing robust FCP approaches that primarily harden…

Machine Learning · Computer Science 2026-05-13 Ehsan Lari , Reza Arablouei , Stefan Werner

Recent attacks on critical infrastructure, including the 2021 Oldsmar water treatment breach and 2023 Danish energy sector compromises, highlight urgent security gaps in Industrial IoT (IIoT) deployments. While Federated Learning (FL)…

Machine Learning · Computer Science 2026-01-01 Samaresh Kumar Singh , Joyjit Roy , Martin So

Training of large scale models on distributed clusters is a critical component of the machine learning pipeline. However, this training can easily be made to fail if some workers behave in an adversarial (Byzantine) fashion whereby they…

Machine Learning · Computer Science 2021-03-05 Konstantinos Konstantinidis , Aditya Ramamoorthy