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arXiv 1502.07113stat.ME
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功能性时间序列

Functional Time Series

Łukasz Kidziński

摘要:

数据收集和存储技术的不断进步使我们能够非常详细地观察和记录现实生活中的过程。例如,金融交易数据,fMRI图像,卫星照片,地球污染分布等,由于这些数据的高维性,经典的统计工具变得不足和低效。对新方法的需求出现了,在这种情况下最突出的技术之一是功能数据分析(FDA)。本文的主要目的是介绍FDA中的时间依赖性分析技术。例如,如果数据由连续的时间过程组成,该过程已被切割成段,例如天,则会发生这种依赖性。然后,我们在所谓的功能时间序列的上下文中。

英文摘要:

The continuous advances in data collection and storage techniques allow us to observe and record real-life processes in great detail. Examples include financial transaction data, fMRI images, satellite photos, earths pollution distribution in time etc. Due to the high dimensionality of such data, classical statistical tools become inadequate and inefficient. The need for new methods emerges and one of the most prominent techniques in this context is functional data analysis (FDA). The main objective of this article is to present techniques of the analysis of temporal dependence in FDA. Such dependence occurs, for example, if the data consist of a continuous time process which has been cut into segments, days for instance. We are then in the context of so-called functional time series.

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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