Graph Diffusion Counterfactual Explanation

Fuente: arXiv
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Autori principali: Bechtoldt, David, Bender, Sidney
Natura: Preprint
Pubblicazione: 2025
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author Bechtoldt, David
Bender, Sidney
author_facet Bechtoldt, David
Bender, Sidney
contents Machine learning models that operate on graph-structured data, such as molecular graphs or social networks, often make accurate predictions but offer little insight into why certain predictions are made. Counterfactual explanations address this challenge by seeking the closest alternative scenario where the model's prediction would change. Although counterfactual explanations are extensively studied in tabular data and computer vision, the graph domain remains comparatively underexplored. Constructing graph counterfactuals is intrinsically difficult because graphs are discrete and non-euclidean objects. We introduce Graph Diffusion Counterfactual Explanation, a novel framework for generating counterfactual explanations on graph data, combining discrete diffusion models and classifier-free guidance. We empirically demonstrate that our method reliably generates in-distribution as well as minimally structurally different counterfactuals for both discrete classification targets and continuous properties.
format Preprint
id arxiv_https___arxiv_org_abs_2511_16287
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Graph Diffusion Counterfactual Explanation
Bechtoldt, David
Bender, Sidney
Machine Learning
Machine learning models that operate on graph-structured data, such as molecular graphs or social networks, often make accurate predictions but offer little insight into why certain predictions are made. Counterfactual explanations address this challenge by seeking the closest alternative scenario where the model's prediction would change. Although counterfactual explanations are extensively studied in tabular data and computer vision, the graph domain remains comparatively underexplored. Constructing graph counterfactuals is intrinsically difficult because graphs are discrete and non-euclidean objects. We introduce Graph Diffusion Counterfactual Explanation, a novel framework for generating counterfactual explanations on graph data, combining discrete diffusion models and classifier-free guidance. We empirically demonstrate that our method reliably generates in-distribution as well as minimally structurally different counterfactuals for both discrete classification targets and continuous properties.
title Graph Diffusion Counterfactual Explanation
topic Machine Learning
url https://arxiv.org/abs/2511.16287