非参数细丝估计的几何性质
The Geometry of Nonparametric Filament Estimation
摘要:
本文研究了由平点过程数据估计晶体结构的问题。我们做了一些连接与计算几何,我们开发的非参数方法估计的细丝。我们表明,在弱条件下,细丝有一个简单的几何表示为中轴的数据分布的支持。我们的方法将支持的边界的估计转换为细丝的估计。我们还发现我们的估计的收敛速度。
英文摘要:
We consider the problem of estimating filamentary structure from planar point process data. We make some connections with computational geometry and we develop nonparametric methods for estimating the filaments. We show that, under weak conditions, the filaments have a simple geometric representation as the medial axis of the data distribution's support. Our methods convert an estimator of the support's boundary into an estimator of the filaments. We also find the rates of convergence of our estimators.
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