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Anisotropic spectral cut-off estimation under multiplicative measurement errors - MaRDI portal

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Anisotropic spectral cut-off estimation under multiplicative measurement errors

From MaRDI portal
Publication:6372028

DOI10.1016/J.JMVA.2022.104990arXiv2107.02120MaRDI QIDQ6372028

Author name not available (Why is that?)

Publication date: 5 July 2021

Abstract: We study the non-parametric estimation of an unknown density f with support on R+^d based on an i.i.d. sample with multiplicative measurement errors. The proposed fully-data driven procedure is based on the estimation of the Mellin transform of the density f and a regularisation of the inverse of the Mellin transform by a spectral cut-off. The upcoming bias-variance trade-off is dealt with by a data-driven anisotropic choice of the cut-off parameter. In order to discuss the bias term, we consider the Mellin-Sobolev spaces which characterize the regularity of the unknown density f through the decay of its Mellin transform. Additionally, we show minimax-optimality over Mellin-Sobolev spaces of the spectral cut-off density estimator.





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