On the Asymptotic Distribution of the Scan Statistic for Empirical Distributions

24 Mar 2020 · Ying Andrew, Zhou Wen-Xin ·

We investigate the asymptotic behavior of several variants of the scan statistic applied to empirical distributions, which can be applied to detect the presence of an anomalous interval with any length. Of particular interest is Studentized scan statistic that is preferable in practice. The main ingredients in the proof are Kolmogorov's theorem, a Poisson approximation, and recent technical results by Kabluchko et al (2014).

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On the Asymptotic Distribution of the Scan Statistic for Empirical Distributions

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