The Interpretable and Effective Graph Neural Additive Networks

Fuente: arXiv
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Auteurs principaux: Bechler-Speicher, Maya, Globerson, Amir, Gilad-Bachrach, Ran
Format: Preprint
Publié: 2024
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author Bechler-Speicher, Maya
Globerson, Amir
Gilad-Bachrach, Ran
author_facet Bechler-Speicher, Maya
Globerson, Amir
Gilad-Bachrach, Ran
contents Graph Neural Networks (GNNs) have emerged as the predominant approach for learning over graph-structured data. However, most GNNs operate as black-box models and require post-hoc explanations, which may not suffice in high-stakes scenarios where transparency is crucial. In this paper, we present a GNN that is interpretable by design. Our model, Graph Neural Additive Network (GNAN), is a novel extension of the interpretable class of Generalized Additive Models, and can be visualized and fully understood by humans. GNAN is designed to be fully interpretable, offering both global and local explanations at the feature and graph levels through direct visualization of the model. These visualizations describe exactly how the model uses the relationships between the target variable, the features, and the graph. We demonstrate the intelligibility of GNANs in a series of examples on different tasks and datasets. In addition, we show that the accuracy of GNAN is on par with black-box GNNs, making it suitable for critical applications where transparency is essential, alongside high accuracy.
format Preprint
id arxiv_https___arxiv_org_abs_2406_01317
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Interpretable and Effective Graph Neural Additive Networks
Bechler-Speicher, Maya
Globerson, Amir
Gilad-Bachrach, Ran
Machine Learning
Artificial Intelligence
Graph Neural Networks (GNNs) have emerged as the predominant approach for learning over graph-structured data. However, most GNNs operate as black-box models and require post-hoc explanations, which may not suffice in high-stakes scenarios where transparency is crucial. In this paper, we present a GNN that is interpretable by design. Our model, Graph Neural Additive Network (GNAN), is a novel extension of the interpretable class of Generalized Additive Models, and can be visualized and fully understood by humans. GNAN is designed to be fully interpretable, offering both global and local explanations at the feature and graph levels through direct visualization of the model. These visualizations describe exactly how the model uses the relationships between the target variable, the features, and the graph. We demonstrate the intelligibility of GNANs in a series of examples on different tasks and datasets. In addition, we show that the accuracy of GNAN is on par with black-box GNNs, making it suitable for critical applications where transparency is essential, alongside high accuracy.
title The Interpretable and Effective Graph Neural Additive Networks
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2406.01317