Graph Random Features for Scalable Gaussian Processes

Fuente: arXiv
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Autores principales: Zhang, Matthew, Lin, Jihao Andreas, Choromanski, Krzysztof, Weller, Adrian, Turner, Richard E., Reid, Isaac
Formato: Preprint
Publicado: 2025
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author Zhang, Matthew
Lin, Jihao Andreas
Choromanski, Krzysztof
Weller, Adrian
Turner, Richard E.
Reid, Isaac
author_facet Zhang, Matthew
Lin, Jihao Andreas
Choromanski, Krzysztof
Weller, Adrian
Turner, Richard E.
Reid, Isaac
contents We study the application of graph random features (GRFs) - a recently introduced stochastic estimator of graph node kernels - to scalable Gaussian processes on discrete input spaces. We prove that (under mild assumptions) Bayesian inference with GRFs enjoys $O(N^{3/2})$ time complexity with respect to the number of nodes $N$, compared to $O(N^3)$ for exact kernels. Substantial wall-clock speedups and memory savings unlock Bayesian optimisation on graphs with over $10^6$ nodes on a single computer chip, whilst preserving competitive performance.
format Preprint
id arxiv_https___arxiv_org_abs_2509_03691
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Graph Random Features for Scalable Gaussian Processes
Zhang, Matthew
Lin, Jihao Andreas
Choromanski, Krzysztof
Weller, Adrian
Turner, Richard E.
Reid, Isaac
Machine Learning
We study the application of graph random features (GRFs) - a recently introduced stochastic estimator of graph node kernels - to scalable Gaussian processes on discrete input spaces. We prove that (under mild assumptions) Bayesian inference with GRFs enjoys $O(N^{3/2})$ time complexity with respect to the number of nodes $N$, compared to $O(N^3)$ for exact kernels. Substantial wall-clock speedups and memory savings unlock Bayesian optimisation on graphs with over $10^6$ nodes on a single computer chip, whilst preserving competitive performance.
title Graph Random Features for Scalable Gaussian Processes
topic Machine Learning
url https://arxiv.org/abs/2509.03691