How powerful are graph neural networks?

Beyond Weisfeiler-Lehman: approximate isomorphisms and metric embeddings

In this post, I argue that the graph isomorphism setting is too limiting for analysing the expressive power of graph neural networks and suggest a broader setting based on metric embeddings.

Michael Bronstein
6 min readJul 13, 2020

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DeepMind Professor of AI @Oxford. Serial startupper. ML for graphs, biochemistry, drug design, and animal communication.