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arXiv 2411.02168cs.LGcs.AI
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图神经网络状态是否包含图属性?

Do graph neural network states contain graph properties?

Vrije Universiteit Amsterdam(荷兰阿姆斯特丹自由大学)

Tom Pelletreau-Duris, Ruud van Bakel, Michael Cochez

AI总结:

本文提出了一种适用于图神经网络的模型无关可解释性流程,通过诊断分类器研究图论属性在GNN表示中的出现。

摘要:

深度神经网络(DNNs)在许多任务上实现了最先进的性能,但往往需要越来越大的模型规模,这反过来又导致了更复杂的内部表示。可解释性技术(XAI)在机器学习模型的可解释性方面取得了显著进展。然而,图神经网络(GNNs)的非欧几里得性质使得难以重用已有的XAI方法。尽管其他工作专注于GNNs的实例解释方法,但非常少有工作研究了基于模型的方法,到我们所知,还没有人尝试通过探测GNNs的嵌入来研究结构图属性。在本文中,我们提出了一种适用于图神经网络(GNNs)的模型无关的可解释性流程,采用诊断分类器。我们提出将图论属性作为研究GNNs表示出现的特征选择。该流程旨在探测和解释GNNs在各种架构和数据集上的学习表示,从而深化我们对这些模型的理解和信任。

英文摘要:

Deep neural networks (DNNs) achieve state-of-the-art performance on many tasks, but this often requires increasingly larger model sizes, which in turn leads to more complex internal representations. Explainability techniques (XAI) have made remarkable progress in the interpretability of ML models. However, the non-euclidean nature of Graph Neural Networks (GNNs) makes it difficult to reuse already existing XAI methods. While other works have focused on instance-based explanation methods for GNNs, very few have investigated model-based methods and, to our knowledge, none have tried to probe the embedding of the GNNs for structural graph properties. In this paper we present a model agnostic explainability pipeline for Graph Neural Networks (GNNs) employing diagnostic classifiers. We propose to consider graph-theoretic properties as the features of choice for studying the emergence of representations in GNNs. This pipeline aims to probe and interpret the learned representations in GNNs across various architectures and datasets, refining our understanding and trust in these models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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