IJCAI 2022poster5 citations

What Does My GNN Really Capture? On Exploring Internal GNN Representations

Luca Veyrin-Forrer, Ataollah Kamal, Stefan Duffner, Marc Plantevit, Céline Robardet

Abstract

Graph Neural Networks (GNNs) are very efficient at classifying graphs but their internal functioning is opaque which limits their field of application. Existing methods to explain GNN focus on disclosing the relationships between input graphs and model decision. In this article, we propose a method that goes further and isolates the internal features, hidden in the network layers, that are automatically identified by the GNN and used in the decision process. We show that this method makes possible to know the parts of the input graphs used by GNN with much less bias that SOTA methods and thus to bring confidence in the decision process.

AI Ethics, Trust, Fairness: Explainability and InterpretabilityData Mining: Frequent Pattern MiningMachine Learning: Explainable/Interpretable Machine LearningMachine Learning: Sequence and Graph Learning
BibTeX
@inproceedings{ijcai2022p105,
  title     = {What Does My GNN Really Capture? On Exploring Internal GNN Representations},
  author    = {Veyrin-Forrer, Luca and Kamal, Ataollah and Duffner, Stefan and Plantevit, Marc and Robardet, Céline},
  booktitle = {Proceedings of the Thirty-First International Joint Conference on
               Artificial Intelligence, {IJCAI-22}},
  publisher = {International Joint Conferences on Artificial Intelligence Organization},
  editor    = {Lud De Raedt},
  pages     = {747--752},
  year      = {2022},
  month     = {7},
  note      = {Main Track},
  doi       = {10.24963/ijcai.2022/105},
  url       = {https://doi.org/10.24963/ijcai.2022/105},
}
What Does My GNN Really Capture? On Exploring Internal GNN Representations · IJCAI 2022