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Nonparametric estimation of boundary measures and related functionals: asymptotic results

Published online by Cambridge University Press:  01 July 2016

Inés Armendáriz*
Affiliation:
Universidad de San Andrés and Universidade de São Paulo
Antonio Cuevas*
Affiliation:
Universidad Autónoma de Madrid
Ricardo Fraiman*
Affiliation:
Universidad de San Andrés and Universidad de la República
*
Postal address: Departamento de Matemática y Ciencias, Universidad de San Andrés, Vito Dumas 284 (B1644BID), Buenos Aires, Argentina.
∗∗∗ Postal address: Departamento de Matemáticas, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain. Email address: [email protected]
Postal address: Departamento de Matemática y Ciencias, Universidad de San Andrés, Vito Dumas 284 (B1644BID), Buenos Aires, Argentina.
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Abstract

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We study a nonparametric method for estimating the boundary measure of a compact body G ⊂ ℝd (the boundary length when d = 2 and the surface area for d = 3) in the case when this measure agrees with the corresponding Minkowski content. The estimator we consider is closely related to the one proposed in Cuevas, Fraiman and Rodríguez-Casal (2007). Our method relies on two sets of random points, drawn inside and outside the set G, with different sampling intensities. Strong consistency and asymptotic normality are obtained under some shape hypotheses on the set G. Some applications and practical aspects are briefly discussed.

Type
Stochastic Geometry and Statistical Applications
Copyright
Copyright © Applied Probability Trust 2009 

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