Models for Dependent Extremes Using Stable Mixtures.
Artikel i vetenskaplig tidskrift, 2009

This paper unifies and extends results on a class of multivariate Extreme Value (EV) models studied by Hougaard, Crowder, and Tawn. In these models both unconditional and conditional distributions are EV, and all lower-dimensional marginals and maxima belong to the class. This leads to substantial economies of understanding, analysis and prediction. One interpretation of the models is as size mixtures of EV distributions, where the mixing is by positive stable distributions. A second interpretation is as exponential-stable location mixtures (for Gumbel) or as power-stable scale mixtures (for non-Gumbel EV distributions). A third interpretation is through a Peaks over Thresholds model with a positive stable intensity. The mixing variables are used as a modeling tool and for better understanding and model checking. We study extreme value analogues of components of variance models, and new time series, spatial, and continuous parameter models for extreme values. The results are applied to data from a pitting corrosion investigation.

pitting corrosion

multivariate extreme value distribution

max-stable

Logistic distribution

random effect

positive stable variables.

Författare

Holger Rootzen

Göteborgs universitet

Chalmers, Matematiska vetenskaper, matematisk statistik

Anne-Laure Fougeres

Johan Nolan

Scandinavinan Journal of Statistics

Vol. 36 42- 59

Ämneskategorier

Beräkningsmatematik

Mer information

Skapat

2017-10-07