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Change-Point Detection under Dependence Based on Two-Sample U-Statistics

9 April 2013
H. Dehling
R. Fried
I. García
Martin Wendler
ArXiv (abs)PDFHTML
Abstract

We study the detection of change-points in time series. The classical CUSUM statistic for detection of jumps in the mean is known to be sensitive to outliers. We thus propose a robust test based on the Wilcoxon two-sample test statistic. The asymptotic distribution of this test can be derived from a functional central limit theorem for two-sample U-statistics. We extend a theorem of Csorgo and Horvath to the case of dependent data.

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