Bias-reduced extreme quantiles estimators of Weibull-tail distributions

Details Bias-reduced extreme quantiles estimators of Weibull-tail distributions Bias-reduced extreme quantiles estimators of Weibull-tail distributions

2011-03-31

arxiv.org/abs/1103.6204v1

Statistics

Methodology

Scientific paper

In this paper, we consider the problem of estimating an extreme quantile of a Weibull tail-distribution. The new extreme quantile estimator has a reduced bias compared to the more classical ones proposed in the literature. It is based on an exponential regression model that was introduced in Diebolt et al. (2008). The asymptotic normality of the extreme quantile estimator is established. We also introduce an adaptive selection procedure to determine the number of upper order statistics to be used. A simulation study as well as an application to a real data set are provided in order to prove the efficiency of the above mentioned methods.

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