Introducing inequality constraints in Gaussian process (GP) models can lead to more realistic uncertainties in learning a great variety of real-world problems. We consider the finite-dimensional Gaussian approach from Maatouk and Bay (2017) which can satisfy inequality conditions everywhere (either boundedness, monotonicity or convexity). Our contributions are threefold. First, we extend their approach in order to deal with general sets of linear inequalities. Second, we explore several Markov Chain Monte Carlo (MCMC) techniques to approximate the posterior distribution. Third, we investigate theoretical and numerical properties of the constrained likelihood for covariance parameter estimation. According to experiments on both artificial and real data, our full framework together with a Hamiltonian Monte Carlo-based sampler provides efficient results on both data fitting and uncertainty quantification.
Finite-dimensional Gaussian approximation with linear inequality constraints
A. F. López-Lopera,François Bachoc,N. Durrande,O. Roustant
Published 2017 in SIAM/ASA J. Uncertain. Quantification
ABSTRACT
PUBLICATION RECORD
- Publication year
2017
- Venue
SIAM/ASA J. Uncertain. Quantification
- Publication date
2017-10-20
- Fields of study
Mathematics, Computer Science
- Identifiers
- External record
- Source metadata
Semantic Scholar
CITATION MAP
EXTRACTION MAP
CLAIMS
- No claims are published for this paper.
CONCEPTS
- No concepts are published for this paper.
REFERENCES
Showing 1-48 of 48 references · Page 1 of 1
CITED BY
Showing 1-75 of 75 citing papers · Page 1 of 1