Cited by 22Privacy-Preserving Technologies in DataAdversarial Robustness in Machine LearningCryptography and Data Security

FedRDF: A Robust and Dynamic Aggregation Function Against Poisoning Attacks in Federated Learning

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Campos, Enrique Mármol, Gonzalez-Vidal, Aurora, Hernández-Ramos, José L., Skarmeta, Antonio·2025·IEEE Transactions on Emerging Topics in Computing

Abstract

Federated Learning (FL) represents a promising approach to typical privacy concerns associated with centralized Machine Learning (ML) deployments. Despite its well-known advantages, FL is vulnerable to security attacks such as Byzantine behaviors and poisoning attacks, which can significantly degrade model performance and hinder convergence. The effectiveness of existing approaches to mitigate complex attacks, such as median, trimmed mean, or Krum aggregation functions, has been only partially demonstrated in the case of specific attacks. Our study introduces a novel robust aggregation mechanism utilizing the Fourier Transform (FT), which is able to effectively handle sophisticated attacks without prior knowledge of the number of attackers. Employing this data technique, weights generated by FL clients are projected into the frequency domain to ascertain their density function, selecting the one exhibiting the highest frequency. Consequently, malicious clients’ weights are excluded. Our proposed approach was tested against various model poisoning attacks, demonstrating superior performance over state-of-the-art aggregation methods.

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Crossref · 10.1109/tetc.2024.3474484

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Cited by

Authors
Campos, E. M., Gonzalez-Vidal, A., Hernández-Ramos, J. L., & Skarmeta, A.
Affiliations
  • Universidad de Murcia (ES)
  • University of Murcia, Murcia, Spain
Venue
IEEE Transactions on Emerging Topics in Computing
Published
2025-01
Volume
13
Issue
1
Pages
48-67
ISSN
  • 2168-6750 (ISSN-L)
  • 2376-4562
OpenAlex
W4403295565
Cited by
22
References
30
Citations by year
2026: 8 · 2025: 8 · 2024: 6
FWCI
3.26
Type
journal article
Language
en
Open access
Locations
  • IEEE Transactions on Emerging Topics in Computing (publishedVersion, cc-by-nc-nd)
  • arXiv (Cornell University) (submittedVersion, cc-by)
  • arXiv (Cornell University) (cc-by)
Funders
  • European Commission (PRTRC17, PRTR C17.I1, C17.I1)
  • Comunidad Autónoma de la Región de Murcia
  • HORIZON EUROPE Marie Sklodowska-Curie Actions (101065524)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Privacy-Preserving Technologies in Data
  • Physical Sciences › Computer Science › Artificial Intelligence › Adversarial Robustness in Machine Learning
  • Physical Sciences › Computer Science › Artificial Intelligence › Cryptography and Data Security
Keywords
federated learning, model poisoning, robust aggregation, Fourier transform, Byzantine attacks, frequency domain analysis, malicious client detection

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