Search Results for author: Alexis Boukouvalas

Found 7 papers, 2 papers with code

Additive Gaussian Processes Revisited

1 code implementation20 Jun 2022 Xiaoyu Lu, Alexis Boukouvalas, James Hensman

Gaussian Process (GP) models are a class of flexible non-parametric models that have rich representational power.

Gaussian Processes

The Minecraft Kernel: Modelling correlated Gaussian Processes in the Fourier domain

no code implementations11 Mar 2021 Fergus Simpson, Alexis Boukouvalas, Vaclav Cadek, Elvijs Sarkans, Nicolas Durrande

In the univariate setting, using the kernel spectral representation is an appealing approach for generating stationary covariance functions.

Gaussian Processes

Enriched Mixtures of Gaussian Process Experts

no code implementations30 May 2019 Charles W. L. Gadd, Sara Wade, Alexis Boukouvalas

Mixtures of experts probabilistically divide the input space into regions, where the assumptions of each expert, or conditional model, need only hold locally.

Adaptive Sensor Placement for Continuous Spaces

no code implementations16 May 2019 James A. Grant, Alexis Boukouvalas, Ryan-Rhys Griffiths, David S. Leslie, Sattar Vakili, Enrique Munoz de Cote

We consider the problem of adaptively placing sensors along an interval to detect stochastically-generated events.

Thompson Sampling

Decision Variance in Online Learning

no code implementations24 Jul 2018 Sattar Vakili, Alexis Boukouvalas, Qing Zhao

In this paper, a risk-averse online learning problem under the performance measure of the mean-variance of the rewards is studied.

Simple approximate MAP Inference for Dirichlet processes

no code implementations4 Nov 2014 Yordan P. Raykov, Alexis Boukouvalas, Max A. Little

This is a well-posed approximation to the MAP solution of the probabilistic DPM model.

Clustering

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