Diagnostics for Dependence within Time Series Extremes
时间序列极端值相依性的诊断AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要研究平稳时间序列的极端相依结构,并明确将诊断用于汇率尾部事件。
时间序列极端值相依性的诊断AI 解读 ↓
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Summary The analysis of extreme values within a stationary time series entails various assumptions concerning its long- and short-range dependence. We present a range of new diagnostic tools for assessing whether these assumptions are appropriate and for identifying structure within extreme events. These tools are based on tail characteristics of joint survivor functions but can be implemented by using existing estimation methods for extremes of univariate independent and identically distributed variables. Our diagnostic aids are illustrated through theoretical examples, simulation studies and by application to rainfall and exchange rate data. On the basis of these diagnostics we can explain characteristics that are found in the observed extreme events of these series and also gain insight into the properties of events that are more extreme than those observed.
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