Communication Compression for Distributed Learning with Aggregate and Server-Guided Feedback

Published:Dec 27, 2025 15:29
1 min read
ArXiv

Analysis

This paper addresses the communication bottleneck in distributed learning, particularly Federated Learning (FL), focusing on the uplink transmission cost. It proposes two novel frameworks, CAFe and CAFe-S, that enable biased compression without client-side state, addressing privacy concerns and stateless client compatibility. The paper provides theoretical guarantees and convergence analysis, demonstrating superiority over existing compression schemes in FL scenarios. The core contribution lies in the innovative use of aggregate and server-guided feedback to improve compression efficiency and convergence.

Reference

The paper proposes two novel frameworks that enable biased compression without client-side state or control variates.