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• W2804969786 abstract "A latent force model is a Gaussian process with a covariance function inspired by a differential operator. Such covariance function is obtained by performing convolution integrals between Green's functions associated to the differential operators, and covariance functions associated to latent functions. In the classical formulation of latent force models, the covariance functions are obtained analytically by solving a double integral, leading to expressions that involve numerical solutions of different types of error functions. In consequence, the covariance matrix calculation is considerably expensive, because it requires the evaluation of one or more of these error functions. In this paper, we use random Fourier features to approximate the solution of these double integrals obtaining simpler analytical expressions for such covariance functions. We show experimental results using ordinary differential operators and provide an extension to build general kernel functions for convolved multiple output Gaussian processes." @default.
• W2804969786 created "2018-06-01" @default.
• W2804969786 creator A5007248971 @default.
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• W2804969786 date "2018-05-18" @default.
• W2804969786 modified "2023-09-27" @default.
• W2804969786 title "Fast Kernel Approximations for Latent Force Models and Convolved Multiple-Output Gaussian processes" @default.
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