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- W2026142847 abstract "This paper discusses the statistics of measuring the difference between two spectral densities, to detect the change of amplitude and frequency in non-stationary time series. First, Kullback information is developed as a measure to segment non-stationary time series. It is shown here that Kullback information is equivalent to spectral matching error measure and the likelihood ratio of residuals of the autoregressive model and it is useful practically in the segmentation of non-stationary time series. Next, other measures such as Kullback divergence and Bhattacharyya distance are investigated to detect the change of amplitude and frequency in non-stationary time series." @default.
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- W2026142847 date "1979-08-01" @default.
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- W2026142847 title "Segmentation of non-stationary time series" @default.
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- W2026142847 doi "https://doi.org/10.1080/00207727908941629" @default.
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