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Helge Langseth

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#artificial intelligence Preprint Oct 2026

Scalable Hierarchical Graph Generation via Soft Community Structure

Generating large attributed graphs requires reproducing the topology, generating attributes jointly with the structure, and remaining scalable. Many real-world graphs exist as a single large graph, so a generative model has to generalize from the one graph it is fit on, without independent samples. We present Schema, w...

Ahmet Tüzen, Helge Langseth, K. Nørvåg · 0 citations
Review Open access Jul 2026

Causal Post-hoc XAI: Categorisation and Systematic Literature Review

This work presents a comprehensive literature review of the current state of the subfield of XAI that consist of causality-motivated post-hoc XAI methods, and a causal framework for categorising XAI is introduced, and three types of post-hoc XAI methods are identified: observational methods, internally causal methods a...

Anna Rodum Bjøru, Helge Langseth, Inga Strümke et al. · 1 citation

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