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Importance of the time alignment of the sleep probabilistic curves

机译:睡眠概率曲线时间对齐的重要性

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Sleep is a dynamic process which can be described by a finite set of sleep stages. In contrast to the standard discrete Rechtschaffen and Kales sleep model continuous sleep representation provided by the Probabilistic Sleep Model allows to take into account the whole dynamic of the sleep process. However, analysis of the sleep probabilistic curves faces problems when the time misalignment is present. In this article we highlight the necessity of curves synchronization, or time alignment, before further analysis. In time aligned and original sleep probabilistic curves are transformed into a finite dimensional vector space which is used to predict age or daily measures. Using this approach we observe that curves alignment significantly improves the prediction of the daily measures especially in the case of the REM sleep stage.
机译:睡眠是一种动态过程,可以通过有限一组睡眠阶段描述。与标准离散的RECHTSCHAFFEN和KALES睡眠模型的持续睡眠代表相比,概率睡眠模型提供的连续睡眠表示允许考虑到睡眠过程的整个动态。然而,当存在未对准时,对睡眠概率曲线的分析面临问题。在本文中,我们在进一步分析之前突出了曲线同步或时间对齐的必要性。在时间对齐和原始睡眠概率曲线被转变为用于预测年龄或日常措施的有限尺寸矢量空间。使用这种方法,我们观察到曲线对准显着提高了每日措施的预测,特别是在REM睡眠阶段的情况下。

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