Effective interpolations for kernel density estimators

Atsuyuki Kogure

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In this paper we introduce a general interpolation scheme to be applied in the kernel density estimation. Our scheme is based on a piecewise higher-degree polynomial interpolation with a strategically chosen set of interpolation points. It is found that our interpolation scheme improves on the kernel density estimation in terms of the integrated mean squared error. A multivariate extension of our findings shows that the improvement increases substantially with the data dimension. In addition to the theoretical improvement, it is demonstrated that our interpolation scheme brings about a considerable computational saving over the original kernel density estimator, making itself comparable to the binning technique in the computational efficiency.

Original languageEnglish
Pages (from-to)165-195
Number of pages31
JournalJournal of Nonparametric Statistics
Issue number2
Publication statusPublished - 1998 Jan 1


  • Binned kernel estimator
  • Higher-degree polynomial interpolation
  • Higher-order kernel
  • Multivariate interpolation
  • Variance reduction

ASJC Scopus subject areas

  • Statistics and Probability
  • Statistics, Probability and Uncertainty


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