Polynomial approximations of multivariate smooth functions from quasi-random data

  • Authors:
  • Sylvain Maire

  • Affiliations:
  • ISITV, Université de Toulon et du Var, Avenue G, Pompidou BP 56 - 83262, La Valette du Var, Cedex, France. maire@univ-tln.fr

  • Venue:
  • Statistics and Computing
  • Year:
  • 2004

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Abstract

We improve a Monte Carlo algorithm which computes accurate approximations of smooth functions on multidimensional Tchebychef polynomials by using quasi-random sequences. We first show that the convergence of the previous algorithm is twice faster using these sequences. Then, we slightly modify this algorithm to make it work from a single set of random or quasi-random points. This especially leads to a Quasi-Monte Carlo method with an increased rate of convergence for numerical integration.