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Towards a Complete Logical Framework for GNN Expressiveness

ICLR 2025 · Graph learning › GNN architectures · approach: Weisfeiler-Leman expressivity hierarchies

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AI-extracted summary. Written by AI from the paper's abstract only. Numbers and claims can be wrong or missing context, so check the paper before you cite or build on it.

Proposes a logical framework for GNN expressiveness, linking GNN architectures to first-order logic extensions to characterize the graph patterns they can capture (abstract truncated).

Problem

Weisfeiler-Lehman tests are the main measure of GNN expressiveness, but high-order WL tests are opaque about which graph patterns they capture, so a clearer logical characterization is needed.

Approach

Uses the connection between WL tests and first-order logic to build a logical framework for GNN expressiveness that aims to make the captured graph patterns explicit; the abstract is truncated so the specific construction is not stated.

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