DiffSP purifies attacked graphs by learning the clean graph distribution with a discrete diffusion model and reports consistent accuracy improvements over baselines on nine datasets and nine evasion attacks.
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Robust Graph Learning Against Adversarial Evasion Attacks via Prior-Free Diffusion-Based Structure Purification
DiffSP purifies attacked graphs by learning the clean graph distribution with a discrete diffusion model and reports consistent accuracy improvements over baselines on nine datasets and nine evasion attacks.