Search Results for author: Lukas Gosch

Found 5 papers, 1 papers with code

Assessing Robustness via Score-Based Adversarial Image Generation

no code implementations6 Oct 2023 Marcel Kollovieh, Lukas Gosch, Yan Scholten, Marten Lienen, Stephan Günnemann

In this work, we introduce Score-Based Adversarial Generation (ScoreAG), a novel framework that leverages the advancements in score-based generative models to generate adversarial examples beyond $\ell_p$-norm constraints, so-called unrestricted adversarial examples, overcoming their limitations.

Image Generation

Expressivity of Graph Neural Networks Through the Lens of Adversarial Robustness

1 code implementation16 Aug 2023 Francesco Campi, Lukas Gosch, Tom Wollschläger, Yan Scholten, Stephan Günnemann

We perform the first adversarial robustness study into Graph Neural Networks (GNNs) that are provably more powerful than traditional Message Passing Neural Networks (MPNNs).

Adversarial Robustness Subgraph Counting

Adversarial Training for Graph Neural Networks: Pitfalls, Solutions, and New Directions

no code implementations NeurIPS 2023 Lukas Gosch, Simon Geisler, Daniel Sturm, Bertrand Charpentier, Daniel Zügner, Stephan Günnemann

Including these contributions, we demonstrate that adversarial training is a state-of-the-art defense against adversarial structure perturbations.

Graph Learning

Revisiting Robustness in Graph Machine Learning

no code implementations1 May 2023 Lukas Gosch, Daniel Sturm, Simon Geisler, Stephan Günnemann

Many works show that node-level predictions of Graph Neural Networks (GNNs) are unrobust to small, often termed adversarial, changes to the graph structure.

Adversarial Robustness

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