Abstract
The study of extreme values is of crucial interest in many contexts. The concentration of pollutants, the sea-level and the closing prices of stock indexes are only a few examples in which the occurrence of extreme values may lead to important consequences. In the present paper we are interested in detecting trend in sample extremes. A common statistical approach used to identify trend in extremes is based on the generalized extreme value distribution, which constitutes a building block for parametric models. However, semiparametric procedures imply several advantages when exploring data and checking the model. This paper outlines a semiparametric approach for smoothing sample extremes, based on nonlinear dynamic modelling of the generalized extreme value distribution. The relative merits of this approach are illustrated through two real examples.
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AMS 2000 Subject Classification. Primary—62G32, 62G05, 62M10
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Gaetan, C., Grigoletto, M. Smoothing Sample Extremes with Dynamic Models. Extremes 7, 221–236 (2004). https://doi.org/10.1007/s10687-005-6474-7
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DOI: https://doi.org/10.1007/s10687-005-6474-7