FedALA: Adaptive Local Aggregation for Personalized Federated Learning

Understand

A key challenge in federated learning (FL) is the statistical heterogeneity that impairs the generalization of the global model on each client.

• To address this, we propose a method Federated learning with Adaptive Local Aggregation (FedALA) by capturing the desired information in the global model for client models in personalized FL.
• The key component of FedALA is an Adaptive Local Aggregation (ALA) module, which can adaptively aggregate the downloaded global model and local model towards the local objective on each client to initialize the local model before training in each iteration.
• To evaluate the effectiveness of FedALA, we conduct extensive experiments with five benchmark datasets in computer vision and natural language processing domains.