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arXiv 1202.4737math.STstat.TH
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极值高斯过程的条件模拟

Conditional simulation of extremal Gaussian processes

Clément Dombry, Mathieu Ribatet

摘要:

最近,极大无限可分过程的正则条件分布由\citet{Dombry2011}得到,虽然这些条件分布具有复杂的封闭形式,但\citet{Dombry2011b}给出了一个算法来得到Brown-Resnick过程的条件实现。在本文中,我们推导出正则条件分布的最大稳定过程引入的\citet{Schlather2002}和适应的框架\citet{Dombry2011b},以这个特定的过程。我们测试模拟数据的方法,并在瑞士极端温度的应用。结果表明,所提出的抽样方案提供了准确的条件模拟,可以处理实际规模的问题。

英文摘要:

Recently the regular conditional distributions of max-infinitely divisible processes were derived by \citet{Dombry2011} and although these conditional distributions have complicated closed forms, \citet{Dombry2011b} introduce an algorithm to get conditional realizations of Brown-Resnick processes. In this paper we derive the regular conditional distributions of the max-stable process introduced by \citet{Schlather2002} and adapt the framework of \citet{Dombry2011b} to this specific process. We test the methods on simulated data and give an application to extreme temperatures in Switzerland. Results show that the proposed sampling scheme provide accurate conditional simulations and can handle real-sized problems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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