Parameter selection in modified histogram estimates
Authors:
Alain Berlinet a;
G
rard Biau a;
Laurent Rouvi
re a
rard Biau a;
Laurent Rouvi
re a
| Affiliation: | a Institut de Math matiques et de Mod lisation de Montpellier, UMR CNRS 5149, Equipe de Probabilit s et Statistique, Universit Montpellier II, Montpellier Cedex 5, France |
DOI:
10.1080/02331880500059713
Publication Frequency:
6 issues per year
Subjects:
Mathematical Statistics;
Statistical Theory & Methods;
Statistics;
Statistics for the Biological Sciences;
Stochastic Models & Processes;
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Abstract
A multivariate modified histogram density estimate depending on a reference density g and a partition P has been proved to have good consistency properties according to several information theoretic criteria. Given an i.i.d. sample, we show how to select automatically both g and P so that the expected L1 error of the corresponding selected estimate is within a given constant multiple of the best possible error plus an additive term which tends to zero under mild assumptions. Our method is inspired by the combinatorial tools developed by Devroye and Lugosi [Devroye, L. and Lugosi, G., 2001, Combinatorial Methods in Density Estimation (New York, NY: Springer-Verlag)] and it includes a wide range of reference density and partition models. Results of simulations are also presented.
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| Keywords: Modified histogram estimate; Nonparametric estimation; Partition; Vapnik-Chervonenkis dimension |
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