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arXiv · 1110.4961

A Smirnov-Bickel-Rosenblatt theorem for compactly-supported wavelets

Adam D. Bull
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Abstract

In nonparametric statistical problems, we wish to find an estimator of an unknown function f. We can split its error into bias and variance terms; Smirnov, Bickel and Rosenblatt have shown that, for a histogram or kernel estimate, the supremum norm of the variance term is asymptotically distributed as a Gumbel random variable. In the following, we prove a version of this result for estimators using compactly-supported wavelets, a popular tool in nonparametric statistics. Our result relies on an assumption on the nature of the wavelet, which must be verified by provably-good numerical approximations. We verify our assumption for Daubechies wavelets and symlets, with N = 6, ..., 20 vanishing moments; larger values of N, and other wavelet bases, are easily checked, and we conjecture that our assumption holds also in those cases.

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BibTeXRIS

Adam D. Bull. 2011-10-22. A Smirnov-Bickel-Rosenblatt theorem for compactly-supported wavelets. https://doi.org/10.1007/s00365-013-9181-7

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