arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.3963math.STstat.TH
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主动力分量

Principal dynamical components

Manuel D. de la Iglesia, Esteban G. Tabak

摘要:

提出了一种新的时间序列降维方法。类似于主成分,该过程寻求一个低维流形,最大限度地减少信息损失。与主成分,但是,新的程序涉及动态的考虑,通过减少流形的预测动力学模型的建议。因此,最小化的不确定性不仅是在一个减少的流形的选择,在主成分,而且在动力学模型的参数。进一步概括提供非自治和非马尔可夫的情况下,然后应用到历史的海表温度数据。

英文摘要:

A new procedure is proposed for the dimensional reduction of time series. Similarly to principal components, the procedure seeks a low-dimensional manifold that minimizes information loss. Unlike principal components, however, the new procedure involves dynamical considerations, through the proposal of a predictive dynamical model in the reduced manifold. Hence the minimization of the uncertainty is not only over the choice of a reduced manifold, as in principal components, but also over the parameters of the dynamical model. Further generalizations are provided to non-autonomous and non-Markovian scenarios, which are then applied to historical sea-surface temperature data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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