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arXiv 1506.07296math.STstat.TH
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长程相依过程局部替代下的变点检验

Change-point tests under local alternatives for long-range dependent processes

Johannes Tewes

摘要:

本文研究具有长程相依性的从属高斯过程的边缘分布的变点问题。本文研究了Kolmogorov-Smirnov-和Cramér-von Mises型统计量在局部替代下的渐近分布。通过这样做,我们能够计算所提到的测试和测试的渐近相对效率。在高斯数据的均值漂移的特殊情况下,它总是$1$。此外,我们的理论涵盖的情况下,Hermite秩的基本过程的变化。在一个小的模拟研究中,我们表明,理论研究结果结转到有限样本的测试性能。

英文摘要:

We consider the change-point problem for the marginal distribution of subordinated Gaussian processes that exhibit long-range dependence. The asymptotic distributions of Kolmogorov-Smirnov- and Cramér-von Mises type statistics are investigated under local alternatives. By doing so we are able to compute the asymptotic relative efficiency of the mentioned tests and the CUSUM test. In the special case of a mean-shift in Gaussian data it is always $1$. Moreover our theory covers the scenario where the Hermite rank of the underlying process changes. In a small simulation study we show that the theoretical findings carry over to the finite sample performance of the tests.

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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