2020

A Framework for Interdomain and Multioutput Gaussian Processes

van der Wilk, Mark, Dutordoir, Vincent, John, ST et al.

Understand

One obstacle to the use of Gaussian processes (GPs) in large-scale problems, and as a component in deep learning system, is the need for bespoke derivations and implementations for small variations in the model or inference.

  • In order to improve the utility of GPs we need a modular system that allows rapid implementation and testing, as seen in the neural network community.
  • We present a mathematical and software framework for scalable approximate inference in GPs, which combines interdomain approximations and multiple outputs.
  • Our framework, implemented in GPflow, provides a unified interface for many existing multioutput models, as well as more recent convolutional structures.

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