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English(EN) What Does It Mean to Remove an Edge? Intervention-Aware Fidelity for Graph Neural Network Explanations

图神经网络解释因“删除保真度”定义而模糊不清

研究人员发现,在评估图神经网络(GNN)解释时存在一个关键的歧义,特别是在“删除保真度”的概念上。该指标通常涉及移除排名靠前的边以评估对模型输出的影响,但“删除边”这一行为可以从两个不同的角度来解释:结构删除,它改变了图的整体结构;以及消息抑制,它阻止了边的消息传递而不改变图的上下文。研究发现,这两种干预只有在特定条件下才会重合,例如具有边集无关系数的加性消息传递。当不满足这些条件时,干预的选择会显著影响边归因的评估,从而导致对其保真度的不同结论。 AI

影响 阐明了评估GNN解释中的一个基本歧义,可能导致更强大、更可靠的模型解释方法。

排序理由 学术论文,详细介绍了关于GNN解释评估方法的新发现。[lever_c_demoted from research: ic=1 ai=1.0]

在 Hugging Face Daily Papers 阅读 →

AI 生成摘要 · Google Gemini · 来自 1 个来源。 我们如何撰写摘要 →

图神经网络解释因“删除保真度”定义而模糊不清

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学术论文,详细介绍了关于GNN解释评估方法的新发现。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. Hugging Face Daily Papers TIER_1 English(EN) ·

    移除一个边缘意味着什么?干预感知保真度用于图神经网络解释

    Graph neural network explanations are often evaluated via deletion fidelity, i.e., by deleting their top-ranked edges and measuring the resulting change in model output. Yet, in a message-passing GNN, "deleting an edge" does not specify a unique intervention. Structural deletion …