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hal-00340661, version 4

Weibull tail-distributions revisited: a new look at some tail estimators

Laurent Gardes () 1, Stéphane Girard () 1, Armelle Guillou () 2

(07/12/2009)

Résumé : In this paper, we propose to include Weibull tail-distributions in a more general family of distributions. In particular, the considered model also encompasses the whole Fréchet maximum domain of attraction as well as log-Weibull tail-distributions. The asymptotic normality of some tail estimators based on the log-spacings between the largest order statistics is established in an unified way within the considered family. This result permits to understand the similarity between most estimators of the Weibull tail-coefficient and the Hill estimator. Some different asymptotic properties, in terms of bias, rate of convergence, are also highlighted.

  • 1 :  MISTIS (INRIA Grenoble Rhône-Alpes / LJK Laboratoire Jean Kuntzmann)
  • INRIA – Laboratoire Jean Kuntzmann
  • 2 :  Institut de Recherche Mathématique Avancée (IRMA)
  • CNRS : UMR7501 – Université de Strasbourg
 
  • hal-00340661, version 4
  • oai:hal.archives-ouvertes.fr:hal-00340661
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  • Soumis le : Lundi 14 Juin 2010, 13:51:08
  • Dernière modification le : Lundi 14 Juin 2010, 14:42:25