Flexible and efficient Gaussian process models

author: Edward Snelson, University College London
published: Feb. 25, 2007,   recorded: June 2006,   views: 4837

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I will briefly describe our work on the sparse pseudo-input Gaussian process (SPGP), where we refine the sparse approximation by selecting `pseudo-inputs' using gradient methods. I will then describe several extensions to this framework. Firstly we incorporate supervised dimensionality reduction to deal with high dimensional input spaces. Secondly we develop a version of the SPGP that can handle input-dependent noise. These extensions allow GP methods to be applied to a wider variety of modelling tasks than previously possible.

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