A brief note on understanding neural networks as Gaussian processes

Mengwu Guo

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arXiv · 2107.11892

A brief note on understanding neural networks as Gaussian processes

Mengwu Guo

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Abstract

As a generalization of the work in [Lee et al., 2017], this note briefly discusses when the prior of a neural network output follows a Gaussian process, and how a neural-network-induced Gaussian process is formulated. The posterior mean functions of such a Gaussian process regression lie in the reproducing kernel Hilbert space defined by the neural-network-induced kernel. In the case of two-layer neural networks, the induced Gaussian processes provide an interpretation of the reproducing kernel Hilbert spaces whose union forms a Barron space.

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Mengwu Guo. 2021-07-25. A brief note on understanding neural networks as Gaussian processes. https://arxiv.org/abs/2107.11892

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