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Stochastic Collocation via l1-Minimisation on Low Discrepancy Point Sets with Application to Uncertainty Quantification

Published online by Cambridge University Press:  12 May 2016

Yongle Liu
Affiliation:
Department of Mathematics, Shanghai Normal University, Shanghai, China
Ling Guo*
Affiliation:
Department of Mathematics and E-Institute of Shanghai Universities and Scientific Computing, Shanghai Normal University, Shanghai, China
*
*Corresponding author. Email address:lguo@shnu.edu.cn (L. Guo)

Abstract

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Various numerical methods have been developed in order to solve complex systems with uncertainties, and the stochastic collocation method using l1-minimisation on low discrepancy point sets is investigated here. Halton and Sobol' sequences are considered, and low discrepancy point sets and random points are compared. The tests discussed involve a given target function in polynomial form, high-dimensional functions and a random ODE model. Our numerical results show that the low discrepancy point sets perform as well or better than random sampling for stochastic collocation via l1-minimisation.

Information

Type
Research Article
Copyright
Copyright © Global-Science Press 2016