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FedGEMS: Federated Learning of Larger Server Models via Selective Knowledge Fusion

2021/10/21 by Sijie Cheng, Cheng, Sijie, Jingwen Wu +5 · 10 citations
Computer Science · Medicine · #Artificial Intelligence (cs.AI) #COVID-19 diagnosis using AI #Cryptography and Data Security #FOS: Computer and information sciences #Machine Learning (cs.LG) #Privacy-Preserving Technologies in Data #cs.AI #cs.LG

paper · pdf · doi:10.48550/arxiv.2110.11027

Under review as a conference paper at ICLR 2022

openalex publication_date 2021/10/21 · arxiv created 2021/12/07 · arxiv updated 2021/12/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Today data is often scattered among billions of resource-constrained edge devices with security and privacy constraints. Federated Learning (FL) has emerged as a viable solution to learn a global model while keeping data private, but the model complexity of FL is impeded by the computation resources of edge nodes. In this work, we investigate a novel paradigm to take advantage of a powerful server model to break through model capacity in FL. By selectively learning from multiple teacher clients and itself, a server model develops in-depth knowledge and transfers its knowledge back to clients in return to boost their respective performance. Our proposed framework achieves superior performance on both server and client models and provides several advantages in a unified framework, including flexibility for heterogeneous client architectures, robustness to poisoning attacks, and communication efficiency between clients and server on various image classification tasks.

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