arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1509.05720math.STstat.TH
收藏

广义统计量长程相关下的二次抽样及其在变点分析中的应用

Subsampling for General Statistics under Long Range Dependence with application to change point analysis

Annika Betken, Martin Wendler

摘要:

在对长程相关时间序列的统计推断中,极限分布的形状通常取决于未知参数。因此,我们建议使用子采样。我们证明了一般统计量和长程相关从属高斯过程满足轻度正则性条件的子采样的有效性。我们将我们的方法应用到一个自归一化的变点检验统计量,这样我们就可以在不需要估计任何冗余参数的情况下检验长范围相关时间序列中的结构突变。有限样本的性质进行了研究,在模拟研究。我们分析了三个数据集,并将我们的结果与其他作者的结论进行了比较。

英文摘要:

In the statistical inference for long range dependent time series the shape of the limit distribution typically depends on unknown parameters. Therefore, we propose to use subsampling. We show the validity of subsampling for general statistics and long range dependent subordinated Gaussian processes which satisfy mild regularity conditions. We apply our method to a self-normalized change-point test statistic so that we can test for structural breaks in long range dependent time series without having to estimate any nuisance parameter. The finite sample properties are investigated in a simulation study. We analyze three data sets and compare our results to the conclusions of other authors.

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。

↑