Gradient-based federated Bayesian optimization

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Lin Yang, Junhua Gu, Qiqi Liu, Zhigang Zhao, Yunhe Wang, Yaochu Jin

Published: 2025, Last Modified: 17 Feb 2026Knowl. Based Syst. 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•Aggregating local acquisition gradients globally without raw data sharing, ensuring privacy.•Grouping agents via Location Square Deviation (LSD) vectors for data-homogeneous clusters.•Global candidate selection via aggregated gradients + local agent-specific solution refinement.