Paz Fink Shustin

dblp:276/0440 · DBLP profile ↗
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1ranked-venue papers
1as first author
1since 2021 · last 2022
0000-0002-4657-9922ORCID · verified

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 first-author · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Probabilistic and Bayesian machine learning · 50% Kernel, tree and ensemble methods · 50%

Topics — the 4 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Probabilistic and Bayesian machine learning › stochastic processes › gaussian process
gaussian process regression
0.612022
Gauss-Legendre Features for Gaussian Process Regression · J. Mach. Learn. Res. 2022
Machine learning › Kernel, tree and ensemble methods › kernel methods
kernel approximation
0.612022
Gauss-Legendre Features for Gaussian Process Regression · J. Mach. Learn. Res. 2022
Machine learning › Kernel, tree and ensemble methods › scalable kernel methods
low-rank kernel approximation
0.612022
Gauss-Legendre Features for Gaussian Process Regression · J. Mach. Learn. Res. 2022
Machine learning › Probabilistic and Bayesian machine learning › stochastic processes › gaussian process › gaussian process regression
scalable gaussian process regression
0.612022
Gauss-Legendre Features for Gaussian Process Regression · J. Mach. Learn. Res. 2022

Methods — techniques the papers use, named apart from their topics

random fourier features · 0.6gauss-legendre quadrature · 0.6
YearPublicationVenuePosition
2022 Gauss-Legendre Features for Gaussian Process Regression
abstract
Gaussian processes provide a powerful probabilistic kernel learning framework, which allows learning high quality nonparametric regression models via methods such as Gaussian process regression. Nevertheless, the learning phase of Gaussian process regression requires massive computations which are not realistic for large datasets. In this paper, we present a Gauss-Legendre quadrature based approach for scaling up Gaussian process regression via a low rank approximation of the kernel matrix. We utilize the structure of the low rank approximation to achieve effective hyperparameter learning, training and prediction. Our method is very much inspired by the well-known random Fourier features approach, which also builds low-rank approximations via numerical integration. However, our method is capable of generating high quality approximation to the kernel using an amount of features which is poly-logarithmic in the number of training points, while similar guarantees will require an amount that is at the very least linear in the number of training points when using random Fourier features. Furthermore, the structure of the low-rank approximation that our method builds is subtly different from the one generated by random Fourier features, and this enables much more efficient hyperparameter learning. The utility of our method for learning with low-dimensional datasets is demonstrated using numerical experiments.
Paz Fink Shustin, Haim Avron
J. Mach. Learn. Res.1