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Poster
in
Workshop: AI for Science: Scaling in AI for Scientific Discovery

Processing large-scale Graphs with G-Signatures

Lukas Gruber · Bernhard Schäfl · Johannes Brandstetter · Sepp Hochreiter

Keywords: [ graph structured data ] [ randomized signature ] [ global graph propagation ] [ latent space graph processing ] [ large-scale graphs ]


Abstract:

Graph neural networks (GNNs) have evolved into one of the most popular deep learning architectures. However, GNNs suffer from over-smoothing node information and, therefore, struggle to solve tasks where global graph properties are relevant. We introduce G-Signatures, a novel graph learning method that enables global graph propagation via randomized signatures. G-Signatures use a new graph conversion concept to embed graph structured information which can be interpreted as paths in latent space. We further introduce the idea of latent space path mapping. This allows us to iteratively traverse latent space paths, and, thus globally process information. G-Signatures excel at extracting and processing global graph properties, and effectively scale to large graph problems. Empirically, we confirm the advantages of G-Signatures at several classification and regression tasks.

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