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Tackling Graph Oversquashing by Global and Local Non-Dissipativity
May 3, 2024, 4:52 a.m. | Alessio Gravina, Moshe Eliasof, Claudio Gallicchio, Davide Bacciu, Carola-Bibiane Sch\"onlieb
cs.LG updates on arXiv.org arxiv.org
Abstract: A common problem in Message-Passing Neural Networks is oversquashing -- the limited ability to facilitate effective information flow between distant nodes. Oversquashing is attributed to the exponential decay in information transmission as node distances increase. This paper introduces a novel perspective to address oversquashing, leveraging properties of global and local non-dissipativity, that enable the maintenance of a constant information flow rate. Namely, we present SWAN, a uniquely parameterized model GNN with antisymmetry both in space …
abstract arxiv cs.lg flow global graph information networks neural networks node nodes novel paper perspective type
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