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Jiajin Sun

dblp:384/4214 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2024
—ORCID · none

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

Artificial intelligence and machine learning · 1 · 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
Kernel, tree and ensemble methods · 100%

Topics — the 2 heaviest of 2, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Kernel, tree and ensemble methods › kernel methods
kernel approximation
0.812024
Quasi-Monte Carlo Features for Kernel Approximation · ICML 2024
Machine learning › Kernel, tree and ensemble methods › kernel methods
kernel ridge regression
0.812024
Quasi-Monte Carlo Features for Kernel Approximation · ICML 2024

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

random features · 0.8quasi-monte carlo · 0.8kernel ridge regression · 0.8
YearPublicationVenuePosition
2024 Quasi-Monte Carlo Features for Kernel Approximation
abstract
Random features (Rahimi & Recht, 2007), based on Monte Carlo (MC) method, is one of the most popular approximation techniques to accelerate kernel methods. We show for a class of kernels, including Gaussian kernels, quasi-Monte Carlo (QMC) methods can be used in place of MC to improve the approximation error from $O_P(1/\sqrt{M})$ to $O(1/M)$ (up to logarithmic factors), for estimating both the kernel function itself and the associated integral operator, where $M$ is the number of features being used. Furthermore, we demonstrate the advantage of QMC features in the case of kernel ridge regression, where theoretically, fewer random features suffice to guarantee the same convergence rate of the excess risk. In practice, the QMC kernel approximation approach is easily implementable and shows superior performance, as supported by the empirical evidence provided in the paper.
Jiajin Sun, Yian Huang
ICML2