FedBaF: Federated Learning Aggregation Biased by a Foundation Model

Fuente: arXiv
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Main Authors: Park, Jong-Ik, Pranav, Srinivasa, Moura, José M. F., Joe-Wong, Carlee
Format: Preprint
Published: 2024
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author Park, Jong-Ik
Pranav, Srinivasa
Moura, José M. F.
Joe-Wong, Carlee
author_facet Park, Jong-Ik
Pranav, Srinivasa
Moura, José M. F.
Joe-Wong, Carlee
contents Foundation models are now a major focus of leading technology organizations due to their ability to generalize across diverse tasks. Existing approaches for adapting foundation models to new applications often rely on Federated Learning (FL) and disclose the foundation model weights to clients when using it to initialize the global model. While these methods ensure client data privacy, they compromise model and information security. In this paper, we introduce Federated Learning Aggregation Biased by a Foundation Model (FedBaF), a novel method for dynamically integrating pre-trained foundation model weights during the FL aggregation phase. Unlike conventional methods, FedBaF preserves the confidentiality of the foundation model while still leveraging its power to train more accurate models, especially in non-IID and adversarial scenarios. Our comprehensive experiments use Pre-ResNet and foundation models like Vision Transformer to demonstrate that FedBaF not only matches, but often surpasses the test accuracy of traditional weight initialization methods by up to 11.4% in IID and up to 15.8% in non-IID settings. Additionally, FedBaF applied to a Transformer-based language model significantly reduced perplexity by up to 39.2%.
format Preprint
id arxiv_https___arxiv_org_abs_2410_18352
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle FedBaF: Federated Learning Aggregation Biased by a Foundation Model
Park, Jong-Ik
Pranav, Srinivasa
Moura, José M. F.
Joe-Wong, Carlee
Machine Learning
Cryptography and Security
Distributed, Parallel, and Cluster Computing
Foundation models are now a major focus of leading technology organizations due to their ability to generalize across diverse tasks. Existing approaches for adapting foundation models to new applications often rely on Federated Learning (FL) and disclose the foundation model weights to clients when using it to initialize the global model. While these methods ensure client data privacy, they compromise model and information security. In this paper, we introduce Federated Learning Aggregation Biased by a Foundation Model (FedBaF), a novel method for dynamically integrating pre-trained foundation model weights during the FL aggregation phase. Unlike conventional methods, FedBaF preserves the confidentiality of the foundation model while still leveraging its power to train more accurate models, especially in non-IID and adversarial scenarios. Our comprehensive experiments use Pre-ResNet and foundation models like Vision Transformer to demonstrate that FedBaF not only matches, but often surpasses the test accuracy of traditional weight initialization methods by up to 11.4% in IID and up to 15.8% in non-IID settings. Additionally, FedBaF applied to a Transformer-based language model significantly reduced perplexity by up to 39.2%.
title FedBaF: Federated Learning Aggregation Biased by a Foundation Model
topic Machine Learning
Cryptography and Security
Distributed, Parallel, and Cluster Computing
url https://arxiv.org/abs/2410.18352