FedD2S: Personalized Data-Free Federated Knowledge Distillation
CoRR(2024)
摘要
This paper addresses the challenge of mitigating data heterogeneity among
clients within a Federated Learning (FL) framework. The model-drift issue,
arising from the noniid nature of client data, often results in suboptimal
personalization of a global model compared to locally trained models for each
client. To tackle this challenge, we propose a novel approach named FedD2S for
Personalized Federated Learning (pFL), leveraging knowledge distillation.
FedD2S incorporates a deep-to-shallow layer-dropping mechanism in the data-free
knowledge distillation process to enhance local model personalization. Through
extensive simulations on diverse image datasets-FEMNIST, CIFAR10, CINIC0, and
CIFAR100-we compare FedD2S with state-of-the-art FL baselines. The proposed
approach demonstrates superior performance, characterized by accelerated
convergence and improved fairness among clients. The introduced layer-dropping
technique effectively captures personalized knowledge, resulting in enhanced
performance compared to alternative FL models. Moreover, we investigate the
impact of key hyperparameters, such as the participation ratio and
layer-dropping rate, providing valuable insights into the optimal configuration
for FedD2S. The findings demonstrate the efficacy of adaptive layer-dropping in
the knowledge distillation process to achieve enhanced personalization and
performance across diverse datasets and tasks.
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