| HAL : hal-00714507, version 2 |
| Fiche détaillée | Récupérer au format |
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| Versions disponibles : | v1 (04-07-2012) | v2 (28-02-2013) |
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| On adaptive wavelet estimation of a class of weighted densities |
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| Fabien Navarro 1, 2Christophe Chesneau 1 |
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| (04/07/2012) |
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| We investigate the estimation of a weighted density taking the form $g=w(F)f$, where $f$ denotes an unknown density, $F$ the associated distribution function and $w$ is a known (non-negative) weight. Such a class encompasses many examples, including those arising in order statistics or when $g$ is related to the maximum or the minimum of $N$ (random or fixed) independent and identically distributed (\iid) random variables. We here construct a new adaptive non-parametric estimator for $g$ based on a plug-in approach and the wavelets methodology. For a wide class of models, we prove that it attains fast rates of convergence under the $\mathbb{L}_p$ risk with $p\ge 1$ (not only for $p = 2$ corresponding to the mean integrated squared error) over Besov balls. The theoretical findings are illustrated through several simulations. |
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| 1 : | Laboratoire de Mathématiques Nicolas Oresme (LMNO) |
| CNRS : UMR6139 – Université de Caen Basse-Normandie | |
| 2 : | Groupe de Recherche en Informatique, Image, Automatique et Instrumentation de Caen (GREYC) |
| CNRS : UMR6072 – Université de Caen Basse-Normandie – Ecole Nationale Supérieure d'Ingénieurs de Caen | |
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| Domaine | : | Mathématiques/Statistiques Statistiques/Théorie |
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| Weighted density – density estimation – plug-in approach – wavelets – block thresholding – reliability – series system – parallel system. |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00714507, version 2 | |
| http://hal.archives-ouvertes.fr/hal-00714507 | |
| oai:hal.archives-ouvertes.fr:hal-00714507 | |
| Contributeur : Fabien Navarro | |
| Soumis le : Jeudi 28 Février 2013, 12:27:08 | |
| Dernière modification le : Jeudi 28 Février 2013, 13:01:19 | |