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cs.LG updates on arXiv.org

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Generating adversarial inputs for a graph neural network ...
[Submitted on 20 Feb 2026 (v1), last revised 23 Jun 2026 (this v · 2026-06-24 · via cs.LG updates on arXiv.org

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Abstract:This work formulates and solves optimization problems to generate input points that yield high errors between a neural network's predicted AC power flow solution and solutions to the AC power flow equations. We demonstrate this capability on an instance of the CANOS-PF graph neural network model, as implemented by the PF$\Delta$ benchmark library, operating on a 14-bus test grid. Generated adversarial points yield errors as large as 3.7 per-unit in reactive power and 0.08 per-unit in voltage magnitude. When minimizing the perturbation from a training point necessary to satisfy adversarial constraints, we find that the constraints can be met with as little as an 0.04 per-unit perturbation in voltage magnitude on a single bus. This work motivates the development of rigorous verification and robust training methods for neural network surrogate models of AC power flow.

Submission history

From: Robert Parker [view email]
[v1] Fri, 20 Feb 2026 04:09:13 UTC (1,148 KB)
[v2] Tue, 23 Jun 2026 02:54:12 UTC (1,060 KB)