FedSheafHN: Personalized Federated Learning on Graph-structured Data

Fuente: arXiv
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Auteurs principaux: Liang, Wenfei, Zhao, Yanan, She, Rui, Li, Yiming, Tay, Wee Peng
Format: Preprint
Publié: 2024
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author Liang, Wenfei
Zhao, Yanan
She, Rui
Li, Yiming
Tay, Wee Peng
author_facet Liang, Wenfei
Zhao, Yanan
She, Rui
Li, Yiming
Tay, Wee Peng
contents Personalized subgraph Federated Learning (FL) is a task that customizes Graph Neural Networks (GNNs) to individual client needs, accommodating diverse data distributions. However, applying hypernetworks in FL, while aiming to facilitate model personalization, often encounters challenges due to inadequate representation of client-specific characteristics. To overcome these limitations, we propose a model called FedSheafHN, using enhanced collaboration graph embedding and efficient personalized model parameter generation. Specifically, our model embeds each client's local subgraph into a server-constructed collaboration graph. We utilize sheaf diffusion in the collaboration graph to learn client representations. Our model improves the integration and interpretation of complex client characteristics. Furthermore, our model ensures the generation of personalized models through advanced hypernetworks optimized for parallel operations across clients. Empirical evaluations demonstrate that FedSheafHN outperforms existing methods in most scenarios, in terms of client model performance on various graph-structured datasets. It also has fast model convergence and effective new clients generalization.
format Preprint
id arxiv_https___arxiv_org_abs_2405_16056
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle FedSheafHN: Personalized Federated Learning on Graph-structured Data
Liang, Wenfei
Zhao, Yanan
She, Rui
Li, Yiming
Tay, Wee Peng
Machine Learning
Personalized subgraph Federated Learning (FL) is a task that customizes Graph Neural Networks (GNNs) to individual client needs, accommodating diverse data distributions. However, applying hypernetworks in FL, while aiming to facilitate model personalization, often encounters challenges due to inadequate representation of client-specific characteristics. To overcome these limitations, we propose a model called FedSheafHN, using enhanced collaboration graph embedding and efficient personalized model parameter generation. Specifically, our model embeds each client's local subgraph into a server-constructed collaboration graph. We utilize sheaf diffusion in the collaboration graph to learn client representations. Our model improves the integration and interpretation of complex client characteristics. Furthermore, our model ensures the generation of personalized models through advanced hypernetworks optimized for parallel operations across clients. Empirical evaluations demonstrate that FedSheafHN outperforms existing methods in most scenarios, in terms of client model performance on various graph-structured datasets. It also has fast model convergence and effective new clients generalization.
title FedSheafHN: Personalized Federated Learning on Graph-structured Data
topic Machine Learning
url https://arxiv.org/abs/2405.16056