2026
FedBRICK: Structural Bias Aware Heterogeneous Foundation Model Federated Tuning
AAAI 2026technical
Model-heterogeneous federated tuning (MHFT) enables the privacy-preserving fine-tuning of foundation models in heterogeneous systems by allowing clients and the server to adopt different model architectures. Depth partial training—where each client updates only a subset of the model