Mihai Udrescu

FLVaccin: Unbalanced Hierarchical Federated Learning with Vaccination-Calibrated Adaptive Quarantine for Robust Poisoning Defense

Federated learning (FL) enables collaborative training without centralizing raw data, yet malicious clients can poison local data or updates and degrade the global model. We present FLVaccin, a hierarchical framework on an unbalanced tree in which every non-root node aggregates a...