Pré-Publication, Document De Travail Année : 2025

A Survey on Cluster-based Federated Learning

Résumé

As the industrial and commercial use of Federated Learning (FL) has expanded, so has the need for optimized algorithms.

In settings were FL clients' data is non-independently and identically distributed (non-IID) and with highly heterogeneous distributions, the baseline FL approach seems to fall short. To tackle this issue, recent studies, have looked into personalized FL (PFL) which relaxes the implicit single-model constraint and allows for multiple hypotheses to be learned from the data or local models. Among the personalized FL approaches, cluster-based solutions (CFL) are particularly interesting whenever it is clear -through domain knowledge -that the clients can be separated into groups.

In this paper, we study recent works on CFL, proposing: i) a classification of CFL solutions for personalization; ii) a structured review of literature iii) a review of alternative use cases for CFL. CCS Concepts: • General and reference → Surveys and overviews; • Computing methodologies → Machine learning; • Information systems → Clustering; • Security and privacy → Privacy-preserving protocols.

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Dates et versions

hal-04916238 , version 1 (28-01-2025)

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Omar El-Rifai, Michael Ben Ali, Imen Megdiche, André Peninou, Olivier Teste. A Survey on Cluster-based Federated Learning. 2025. ⟨hal-04916238⟩
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