FedRD: Reducing Divergences for Generalized Federated Learning via Heterogeneity-aware Parameter Guidance

• URL: http://arxiv.org/abs/2601.20397v1
• Date: Wed, 28 Jan 2026 09:03:06 GMT
• Title: FedRD: Reducing Divergences for Generalized Federated Learning via Heterogeneity-aware Parameter Guidance
• Authors: Kaile Wang, Jiannong Cao, Yu Yang, Xiaoyin Li, Mingjin Zhang,
• Abstract summary: Heterogeneous federated learning (HFL) aims to ensure effective and privacy-preserving collaboration among different entities.<n>The problem of generalizing federated learning models to unseen clients under heterogeneous data has become progressively crucial.<n>We propose FedRD, a novel Heterogeneous Federated Learning algorithm that collaboratively utilizes parameter-guided global generalization aggregation and local debiased classification to reduce divergences.
• Score: 24.601588520875023
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Heterogeneous federated learning (HFL) aims to ensure effective and privacy-preserving collaboration among different entities. As newly joined clients require significant adjustments and additional training to align with the existing system, the problem of generalizing federated learning models to unseen clients under heterogeneous data has become progressively crucial. Consequently, we highlight two unsolved challenging issues in federated domain generalization: Optimization Divergence and Performance Divergence. To tackle the above challenges, we propose FedRD, a novel heterogeneity-aware federated learning algorithm that collaboratively utilizes parameter-guided global generalization aggregation and local debiased classification to reduce divergences, aiming to obtain an optimal global model for participating and unseen clients. Extensive experiments on public multi-domain datasets demonstrate that our approach exhibits a substantial performance advantage over competing baselines in addressing this specific problem.

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