k-WL is incomplete on simple spectrum graphs; PRiSM is the first provably complete canonicalization for their eigendecompositions.
Neural injective functions for multisets, measures and graphs via a finite witness theorem.Advances in Neural Information Processing Systems, 36:42516–42551, 2023
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Weisfeiler-Leman Is Incomplete on Simple Spectrum Graphs, so Canonicalize Them
k-WL is incomplete on simple spectrum graphs; PRiSM is the first provably complete canonicalization for their eigendecompositions.