arXiv Machine Learning August 27, 2026 By Lovisa Eriksson, Dave Zachariah, Andr\'e M. H. Teixeira

Adversarial Training of Linear Models under Stealthy Attacks

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The paper introduces a detector‑based switched model to defend linear predictive models against stealthy false data injection attacks. It derives a convex formulation of the adversarial risk that incorporates protected features and a hyperparameter for attack probability, allowing an explicit trade‑off between clean and attacked data performance. Numerical experiments on real and synthetic datasets demonstrate improved performance on partially attacked data, even when the attack probability is misspecified.

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