A General Result on the Mean Integrated Squared Error of the Hard Thresholding Wavelet Estimator under -Mixing Dependence

Christophe Chesneau

Journal of Probability and Statistics, 2014, vol. 2014, 1-12

Abstract:

We consider the estimation of an unknown function for weakly dependent data ( -mixing) in a general setting. Our contribution is theoretical: we prove that a hard thresholding wavelet estimator attains a sharp rate of convergence under the mean integrated squared error (MISE) over Besov balls without imposing too restrictive assumptions on the model. Applications are given for two types of inverse problems: the deconvolution density estimation and the density estimation in a GARCH-type model, both improve existing results in this dependent context. Another application concerns the regression model with random design.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnljps:403764

DOI: 10.1155/2014/403764

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