Federated Learning Can Find Friends That Are Beneficial

In Federated Learning (FL), the distributed nature and heterogeneity of client data present both opportunities and challenges. While collaboration among clients can significantly enhance the learning process, not all collaborations are beneficial; some may even be detrimental. In this study, we introduce a novel algorithm that assigns adaptive aggregation weights to clients participating in FL training, identifying those with data distributions most conducive to a specific learning objective. We demonstrate that our aggregation method converges no worse than the method …

aggregation algorithm challenges client collaboration collaborations cs.lg data distributed federated learning math.oc nature novel opportunities process study