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Characterizing Graph Datasets for Node Classification: Homophily-Heterophily Dichotomy and Beyond
March 5, 2024, 2:45 p.m. | Oleg Platonov, Denis Kuznedelev, Artem Babenko, Liudmila Prokhorenkova
cs.LG updates on arXiv.org arxiv.org
Abstract: Homophily is a graph property describing the tendency of edges to connect similar nodes; the opposite is called heterophily. It is often believed that heterophilous graphs are challenging for standard message-passing graph neural networks (GNNs), and much effort has been put into developing efficient methods for this setting. However, there is no universally agreed-upon measure of homophily in the literature. In this work, we show that commonly used homophily measures have critical drawbacks preventing the …
abstract arxiv beyond classification cs.dm cs.lg cs.si datasets gnns graph graph neural networks graphs math.pr networks neural networks node nodes property standard type
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