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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao zbMATH Openarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
zbMATH Open
Article . 2012
Data sources: zbMATH Open
International Journal for Uncertainty Quantification
Article . 2012 . Peer-reviewed
Data sources: Crossref
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STOCHASTIC COLLOCATION ALGORITHMS USING l1-MINIMIZATION

Stochastic collocation algorithms using \(\ell_1\)-minimization
Authors: Yan, Liang; Guo, Ling; Xiu, Dongbin;

STOCHASTIC COLLOCATION ALGORITHMS USING l1-MINIMIZATION

Abstract

Summary: The idea of \(\ell_1\)-minimization is the basis of the widely adopted compressive sensing method for function approximation. In this paper, we extend its application to high-dimensional stochastic collocation methods. To facilitate practical implementation, we employ orthogonal polynomials, particularly Legendre polynomials, as basis functions, and focus on the cases where the dimensionality is high such that one can not afford to construct high-degree polynomial approximations. We provide theoretical analysis on the validity of the approach. The analysis also suggests that using the Chebyshev measure to precondition the \(\ell_1\)-minimization, which has been shown to be numerically advantageous in one dimension in the literature, may in fact become less efficient in high dimensions. Numerical tests are provided to examine the performance of the methods and validate the theoretical findings.

Related Organizations
Keywords

Numerical solutions to stochastic differential and integral equations, Stochastic partial differential equations (aspects of stochastic analysis), multi-dimensional interpolation, Legendre polynomials, PDEs with randomness, stochastic partial differential equations, \(\ell_1\)-minimization, numerical test, stochastic collocation, Computational methods for stochastic equations (aspects of stochastic analysis), Spectral, collocation and related methods for initial value and initial-boundary value problems involving PDEs

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Powered by OpenAIRE graph
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
97
Top 10%
Top 10%
Top 10%
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