Sobolev-Hermite versus Sobolev nonparametric density estimation on $${\mathbb {R}}$$ R

Denis Belomestny (), Fabienne Comte () and Valentine Genon-Catalot ()
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Denis Belomestny: Duisburg-Essen University
Fabienne Comte: Université Paris Descartes, Sorbonne Paris Cité
Valentine Genon-Catalot: Université Paris Descartes, Sorbonne Paris Cité

Annals of the Institute of Statistical Mathematics, 2019, vol. 71, issue 1, No 2, 29-62

Abstract: Abstract In this paper, our aim is to revisit the nonparametric estimation of a square integrable density f on $${\mathbb {R}}$$ R , by using projection estimators on a Hermite basis. These estimators are studied from the point of view of their mean integrated squared error on $${\mathbb {R}}$$ R . A model selection method is described and proved to perform an automatic bias variance compromise. Then, we present another collection of estimators, of deconvolution type, for which we define another model selection strategy. Although the minimax asymptotic rates of these two types of estimators are mainly equivalent, the complexity of the Hermite estimators is usually much lower than the complexity of their deconvolution (or kernel) counterparts. These results are illustrated through a small simulation study.

Keywords: Complexity; Density estimation; Hermite basis; Model selection; Projection estimator (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (3)

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DOI: 10.1007/s10463-017-0624-y

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