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Confidence Regions for Multivariate Quantiles
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DOI：10.3390/w10080996.png)
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摘要
En 中文
Multivariate quantiles are of increasing importance in applications of hydrology. This calls for reliable methods to evaluate the precision of the estimated quantile sets. Therefore, we focus on two recently developed approaches to estimate confidence regions for level sets and extend them to provide confidence regions for multivariate quantiles based on copulas. In a simulation study, we check coverage probabilities of the employed approaches. In particular, we focus on small sample sizes. One approach shows reasonable coverage probabilities and the second one obtains mixed results. Not only the bounded copula domain but also the additional estimation of the quantile level pose some problems. A small sample application gives further insight into the employed techniques.
Keyword:
confidence regions
copulas
hydrology
level set estimation
multivariate quantiles
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期刊
W
IF:
3
论文数:
3.2W
被引数:
7.4W
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