Gaussian process methods for nonparametric functional regression with mixed predictors

Bo Wang, Aiping Xu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Gaussian process methods are proposed for nonparametric functional regression for both scalar and functional responses with mixed multidimensional functional and scalar predictors. The proposed models allow the response variables to depend on the entire trajectories of the functional predictors. They inherit the desirable properties of Gaussian process regression, and can naturally accommodate both scalar and functional variables as the predictors, as well as easy to obtain and express uncertainty in predictions. The numerical experiments show that the proposed methods significantly outperform the competing models, and their usefulness is also demonstrated by the application to two real datasets.
Original languageEnglish
Pages (from-to)80-90
Number of pages11
JournalComputational Statistics and Data Analysis
Volume131
Early online date26 Jul 2018
DOIs
Publication statusPublished - Mar 2019

Keywords

  • Functional principal component analysis
  • Functional regression
  • Gaussian process regression
  • Nonparametric methods
  • Semi-metric

ASJC Scopus subject areas

  • Statistics and Probability
  • Computational Mathematics
  • Computational Theory and Mathematics
  • Applied Mathematics

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