arXiv:2605.06467cs.LGmath.AT2026-05

提出新评估框架,揭示现有模型无法真正理解拓扑结构。

No Triangulation Without Representation: Generalization in Topological Deep Learning

  • 构建更丰富的流形三角剖分数据集,扩展MANTRA基准
  • 发现图神经网络与高阶消息传递模型可饱和基准但依赖正确表示
  • 强调模型需具备尺度无关的拓扑泛化能力,适合拓扑学习研究者

尽管拓扑深度学习模型在处理高阶数据集方面日益受到关注,但对其评估尚无共识。这因拓扑对象允许如结构细化等图数据不适用的操作而加剧。本文将MANTRA基准扩展至包含更多同胚类型、更丰富流形的更大类别。我们发现,与先前观点不同,图神经网络(GNNs)和高阶消息传递(HOMP)方法均可达到该基准上限,但这依赖于正确的表示与特征分配,凸显其重要性。因此,我们提出基于表示多样性与三角剖分细化的新评估协议。令人惊讶的是,现有模型在组合结构之外并无泛化迹象,暴露出对尺度无关拓扑理解的缺失。本工作为未来模型评估提供必要基础,并推动拓扑感知归纳偏置的发展。

原文摘要 · Abstract (English)

Despite an ever-increasing interest in topological deep learning models that target higher-order datasets, there is no consensus on how to evaluate such models. This is exacerbated by the fact that topological objects permit operations, such as structural refinements, that are not appropriate for graph data. In this work, we extend MANTRA, a benchmark dataset containing manifold triangulations, to a larger class of manifolds with more diverse homeomorphism types. We show that, unlike prior claims, both graph neural networks (GNNs) and higher-order message passing (HOMP) methods can saturate the benchmark. However, we find that this is contingent on the right representation and feature assignment, emphasizing their importance in baseline models. We thus provide a novel evaluation protocol based on representational diversity and triangulation refinement. Surprisingly, we find no indication that existing models are capable of generalizing beyond the combinatorial structure of the data. This points towards a research gap in developing models that understand topological structure independent of scale. Our work thus provides the necessary scaffolding to evaluate future models and enable the development of topology-aware inductive biases.

拓扑学习图神经网络泛化能力评估基准

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