The integration of Federated Learning (FL) and Mixture-of-Experts (MoE) presents a compelling pathway for training more powerful, large-scale artificial intelligence models (LAMs) on decentralized data while preserving privacy. However, efficient federated training of these complex MoE-structured LAMs is hindered by significant system-level challenges, particularly in managing the interplay between heterogeneous client resources and the sophisticated coordination required for numerous specialized experts. This article highlights a critical, yet underexplored concept: the absence of robust quantitative strategies for dynamic client-expert alignment that holistically considers varying client capacities and the imperative for system-wise load balancing. Specifically, we propose a conceptual system design for intelligent client-expert alignment that incorporates dynamic fitness scoring, global expert load monitoring, and client capacity profiling. By tackling these systemic issues, we can unlock more scalable, efficient, and robust training mechanisms {with fewer communication rounds for convergence}, paving the way for the widespread deployment of large-scale federated MoE-structured LAMs in edge computing with ultra-high communication efficiency.
@article{arxiv.2507.05685,
title = {Efficient Training of Large-Scale AI Models Through Federated Mixture-of-Experts: A System-Level Approach},
author = {Xiaobing Chen and Boyang Zhang and Xiangwei Zhou and Mingxuan Sun and Shuai Zhang and Songyang Zhang and Geoffrey Ye Li},
journal= {arXiv preprint arXiv:2507.05685},
year = {2025}
}