Pointwise optimality of Bayesian wavelet estimators (Articolo in rivista)

Type
Label
  • Pointwise optimality of Bayesian wavelet estimators (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s10463-006-0071-7 (literal)
Alternative label
  • Abramovich F.; Angelini C.; De Canditiis D. (2007)
    Pointwise optimality of Bayesian wavelet estimators
    in Annals of the Institute of Statistical Mathematics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Abramovich F.; Angelini C.; De Canditiis D. (literal)
Pagina inizio
  • 425 (literal)
Pagina fine
  • 434 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.ism.ac.jp/editsec/aism/pdf/059_3_0425.pdf (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 59 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
  • Google S (literal)
  • Mathematical Reviews on the web (MathSciNet) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Statistics and Operations Research, Tel Aviv University Istituto per le Applicazioni del Calcolo, CNR, Italy Istituto per le Applicazioni del Calcolo, CNR, Italy. (literal)
Titolo
  • Pointwise optimality of Bayesian wavelet estimators (literal)
Abstract
  • We consider pointwise mean squared errors of several known Bayesian wavelet estimators, namely, posterior mean, posterior median and Bayes Factor, where the prior imposed on wavelet coe±cients is a mixture of an atom of probability zero and a Gaussian density. We show that for the properly chosen hyperparameters of the prior, all the three estimators are (up to a log-factor) asymptotically minimax within any prescribed Besov ball. We discuss the Bayesian paradox and compare the results for the pointwise squared risk with those for the global mean squared error (literal)
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