Detection of Changes in the Czech Consumer Price Index by Sparse Parameter Estimation

Authors

NEUBAUER Jiří VESELÝ Vítězslav

Year of publication 2010
Type Article in Periodical
Magazine / Source Forum Statisticum Slovacum
MU Faculty or unit

Faculty of Economics and Administration

Citation
Web http://www.ssds.sk/casopis/archiv/2010/fss0510.pdf
Field Applied statistics, operation research
Keywords multiple change point detection; overparametrized model; sparse parameter estimation; basis pursuit algorithm; consumer price index
Description The contribution is focused on application of multiple change point detection in a one-dimensional stochastic process by sparse parameter estimation from an overparametrized model. A stochastic process with changes in the mean is estimated using dictionary consisting of Heaviside functions. The basis pursuit algorithm is used to get sparse parameter estimates. The mentioned method is applied to the time series of the Czech consumer price index.
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