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  • Time-varying statistical dimension analysis with application to newborn scalp EEG seizure signals

    Author(s)
    Celka, Patrick
    Griffith University Author(s)
    Celka, Patrick
    Year published
    2002
    Metadata
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    Abstract
    A new approach to the analysis of nonstationary possibly nonlinear time series is presented. It is based on an adaptive autocovariance eigenspectrum computation known as APEX together with the Rissanen’s Minimum Description Length criterion for the selection of the most relevant eigenvalues. A new concept of time-varying instantaneous statistical dimension is introduced. The motivation for this new approach is the analysis of newborn electroencephalogram for which nonstationarity is an inherent property. The proposed algorithm and new dimension are first assessed on synthetic data. Then, newborn scalp EEG data are analyzed ...
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    A new approach to the analysis of nonstationary possibly nonlinear time series is presented. It is based on an adaptive autocovariance eigenspectrum computation known as APEX together with the Rissanen’s Minimum Description Length criterion for the selection of the most relevant eigenvalues. A new concept of time-varying instantaneous statistical dimension is introduced. The motivation for this new approach is the analysis of newborn electroencephalogram for which nonstationarity is an inherent property. The proposed algorithm and new dimension are first assessed on synthetic data. Then, newborn scalp EEG data are analyzed using the proposed scheme. Transitions between different brain states are shown to occur on a baby having electrical and clinical seizures.
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    Journal Title
    Medical Engineering & Physics
    Volume
    24
    DOI
    https://doi.org/10.1016/S1350-4533(01)00119-9
    Subject
    Physical Sciences
    Engineering
    Medical and Health Sciences
    Publication URI
    http://hdl.handle.net/10072/58380
    Collection
    • Journal articles

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