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arXiv 1306.3014stat.MEstat.CO
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空间样条回归的混合

Mixtures of Spatial Spline Regressions

Hien D. Nguyen, Geoffrey J. McLachlan, Ian A. Wood

摘要:

我们提出了一个扩展的功能性数据分析框架的单变量函数的表面分析:两个变量的功能。空间样条回归(SSR)的方法可以用来模拟表面上采样的矩形域。此外,SSR与线性混合效应模型(LMM)相结合,允许表面的群体的分析,并结合联合SSR-LMM方法与有限混合模型允许与子家族结构的表面的群体的分析。通过混合空间样条回归(MSSR)的方法开发,我们提出的方法聚类表面到子家庭,并进行基于表面的判别分析。我们的方法的有效性,以及SSR模型的建模能力进行评估,通过应用手写字符识别。

英文摘要:

We present an extension of the functional data analysis framework for univariate functions to the analysis of surfaces: functions of two variables. The spatial spline regression (SSR) approach developed can be used to model surfaces that are sampled over a rectangular domain. Furthermore, combining SSR with linear mixed effects models (LMM) allows for the analysis of populations of surfaces, and combining the joint SSR-LMM method with finite mixture models allows for the analysis of populations of surfaces with sub-family structures. Through the mixtures of spatial splines regressions (MSSR) approach developed, we present methodologies for clustering surfaces into sub-families, and for performing surface-based discriminant analysis. The effectiveness of our methodologies, as well as the modeling capabilities of the SSR model are assessed through an application to handwritten character recognition.

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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