FedGloSS optimizes global sharpness on the server using the previous pseudo-gradient to approximate SAM's perturbation, achieving better accuracy and flatness in heterogeneous federated learning without extra communication.
Fedgamma: Federated learn- ing with global sharpness-aware minimization
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Beyond Local Sharpness: Communication-Efficient Global Sharpness-aware Minimization for Federated Learning
FedGloSS optimizes global sharpness on the server using the previous pseudo-gradient to approximate SAM's perturbation, achieving better accuracy and flatness in heterogeneous federated learning without extra communication.