论文标题
定向统计的最新进展
Recent advances in directional statistics
论文作者
论文摘要
主流统计方法通常适用于在欧几里得空间中观察到的数据。但是,存在许多相当科学兴趣的背景,其中考虑的数据的自然支持是Riemannian歧管,例如单位圆,圆环,球体及其扩展。通常,可以使用一个或多个方向表示此类数据,而定向统计是涉及其分析的统计分支。在本文中,我们对自Mardia and Jupp(1999)出版以来该领域的许多最新发展进行了综述,仍然是方向统计的最全面文本。这些发展中的许多发展都受到了像天文学,医学,遗传学,神经病学,航空,声学,图像分析,文本挖掘,环境和机器学习等多样性的不同应用。首先,我们要考虑进行定向数据的探索性分析,然后再进行分配模型,推理,假设测试,回归,非参数曲线估计,缩小维度,分类和聚类的方法以及时间序列,空间和时空数据的建模。还提供了用于分析定向数据的当前可用软件的概述,并讨论了潜在的未来发展。
Mainstream statistical methodology is generally applicable to data observed in Euclidean space. There are, however, numerous contexts of considerable scientific interest in which the natural supports for the data under consideration are Riemannian manifolds like the unit circle, torus, sphere and their extensions. Typically, such data can be represented using one or more directions, and directional statistics is the branch of statistics that deals with their analysis. In this paper we provide a review of the many recent developments in the field since the publication of Mardia and Jupp (1999), still the most comprehensive text on directional statistics. Many of those developments have been stimulated by interesting applications in fields as diverse as astronomy, medicine, genetics, neurology, aeronautics, acoustics, image analysis, text mining, environmetrics, and machine learning. We begin by considering developments for the exploratory analysis of directional data before progressing to distributional models, general approaches to inference, hypothesis testing, regression, nonparametric curve estimation, methods for dimension reduction, classification and clustering, and the modelling of time series, spatial and spatio-temporal data. An overview of currently available software for analysing directional data is also provided, and potential future developments discussed.