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- W2800634330 abstract "ABSTRACTSingular spectrum analysis (SSA) is a relatively new method for time series analysis and comes as a non-parametric alternative to the classical methods. This methodology has proven to be effective in analysing non-stationary and complex time series since it is a non-parametric method and do not require the classical assumptions over the stationarity or over the normality of the residuals. Although SSA have proved to provide advantages over traditional methods, the challenges that arise when long time series are considered, make the standard SSA very demanding computationally and often not suitable. In this paper we propose the randomized SSA which is an alternative to SSA for long time series without losing the quality of the analysis. The SSA and the randomized SSA are compared in terms of quality of the model fit and forecasting, and computational time. This is done by using Monte Carlo simulations and real data about the daily prices of five of the major world commodities." @default.
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- W2800634330 date "2018-04-25" @default.
- W2800634330 modified "2023-10-16" @default.
- W2800634330 title "Randomized singular spectrum analysis for long time series" @default.
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- W2800634330 doi "https://doi.org/10.1080/00949655.2018.1462810" @default.
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