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Have Graph — Will Lift? The Case for Higher-Order Benchmarks
Proceedings of the Geometry, Topology, and Machine Learning Workshop, PMLR 325:109-119, 2026.
Abstract
After a somewhat rocky start, geometry and topology have established a foothold in machine learning. Message passing, either on graphs or higher-order complexes, is one of the main drivers of \emph{geometric deep learning}, and paradigms that were once considered to be firmly in the realm of the abstract—like sheaves—have been “tamed” to serve as novel inductive biases for model architectures in \emph{topological deep learning}. The veritable diversity of models, however, is in stark contrast to the scarcity of suitable benchmark datasets. As a result, researchers often resort to \emph{lifting} existing graph datasets to include higher-order information. In this opinion paper, I want to encourage the community to also source new datasets, which may be used to prop up the foundations of our research field.