arXiv (Cornell University)
STSA: Federated Class-Incremental Learning via Spatial-Temporal Statistics Aggregation
June 2025 • Zhenzhen Guan, Guojun Zhu, Zhou Yucan, Wu Liu, Weiping Wang, Jiebo Luo, Xiaoyan Gu
Federated Class-Incremental Learning (FCIL) enables Class-Incremental Learning (CIL) from distributed data. Existing FCIL methods typically integrate old knowledge preservation into local client training. However, these methods cannot avoid spatial-temporal client drift caused by data heterogeneity and often incur significant computational and communication overhead, limiting practical deployment. To address these challenges simultaneously, we propose a novel approach, Spatial-Temporal Statistics Aggregation (STSA…