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Global Explainability of GNNs via Logic Combination of Learned Concepts

ICLR 2023 · Graph learning › GNN architectures · approach: GNN explainability · 10 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
add straight-through discretization of concept activations (ablation)GLGExplainer · Experiments across datasetsFidelityHelped
add straight-through discretization instead of using a concept-vector entropy loss (ablation)GLGExplainer · Experiments across datasetsFidelityHelped
increase prototype count from 2 to 6 (ablation)GLGExplainer · BAMultiShapes validationConcept Purity: 0.42 -> 0.84Helped
increase prototype count from 6 to 8 (ablation)GLGExplainer · BAMultiShapes validationFidelity: 0.95 -> 0.95No clear effect
increase prototype count from 2 to 8 (ablation)GLGExplainer · Mutagenicity validationFidelity: 0.83 -> 0.79Hurt
increase prototype count from 2 to 4 (ablation)GLGExplainer · HIN validationConcept Purity: 0.45 -> 0.80Helped
increase prototype count from 4 to 8 (ablation)GLGExplainer · HIN validationConcept Purity: 0.80 -> 0.70Hurt

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