Co-Boosting++: Coupled Optimization of Data and Ensemble for One-Shot Federated Learning

Co-Boosting++ is a framework for one-shot federated learning (OFL, a method where multiple devices train a shared model with only one communication round), which improves how synthetic data and model ensembles work together. The framework alternates between generating challenging synthetic data samples to test the model and adjusting the ensemble weights using a Mixture of Experts mechanism (a technique that dynamically selects which component models to trust based on the task), resulting in better overall model performance.