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arXiv 0908.2503stat.MEmath.STstat.TH
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时间序列的序贯分位数预测

Sequential Quantile Prediction of Time Series

Gérard Biau, Benoît Patra

摘要:

受广泛的潜在应用的启发,我们解决了实值时间序列的分位数预测问题。我们提出了一个序贯分位数预测模型的基础上组合的一组基本最近邻型预测称为“专家”,并显示其一致性的最低条件下。我们的方法建立在近年来开发的方法预测的个别序列,并利用分位数结构作为一个最小的所谓的弹球损失函数。我们对真实世界的数据集进行了深入的分析,并表明这种非参数策略通常优于标准分位数预测方法

英文摘要:

Motivated by a broad range of potential applications, we address the quantile prediction problem of real-valued time series. We present a sequential quantile forecasting model based on the combination of a set of elementary nearest neighbor-type predictors called "experts" and show its consistency under a minimum of conditions. Our approach builds on the methodology developed in recent years for prediction of individual sequences and exploits the quantile structure as a minimizer of the so-called pinball loss function. We perform an in-depth analysis of real-world data sets and show that this nonparametric strategy generally outperforms standard quantile prediction methods

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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