Online Multi-Agent Decentralized Byzantine-robust Gradient Estimation

30 Sep 2022  ·  Alexandre Reiffers-Masson, Isabel Amigo ·

In this paper, we propose an iterative scheme for distributed Byzantineresilient estimation of a gradient associated with a black-box model. Our algorithm is based on simultaneous perturbation, secure state estimation and two-timescale stochastic approximations. We also show the performance of our algorithm through numerical experiments.

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