• Media type: Text; Report; E-Book
  • Title: Nonparametric change point detection in regression
  • Contributor: Avanesov, Valeriy [Author]
  • Published: Weierstrass Institute for Applied Analysis and Stochastics publication server, 2020
  • Language: English
  • DOI: https://doi.org/10.20347/WIAS.PREPRINT.2687
  • Keywords: 62M10 ; article ; 62H15 ; Bootstrap -- change point detection -- nonparametrics -- regression -- multiscale
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  • Description: This paper considers the prominent problem of change-point detection in regression. The study suggests a novel testing procedure featuring a fully data-driven calibration scheme. The method is essentially a black box, requiring no tuning from the practitioner. The approach is investigated from both theoretical and practical points of view. The theoretical study demonstrates proper control of first-type error rate under H0 and power approaching 1 under H1. The experiments conducted on synthetic data fully support the theoretical claims. In conclusion, the method is applied to financial data, where it detects sensible change-points. Techniques for change-point localization are also suggested and investigated