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    • Generalizing the Convex Hull of a Sample: The R Package alphahull 

      Rodríguez Casal, Alberto; Pateiro López, Beatriz (Foundation for Open Access Statistics, 2010-04-16)
      This paper presents the R package alphahull which implements the α-convex hull and the α-shape of a finite set of points in the plane. These geometric structures provide an informative overview of the shape and properties ...
    • On estimating the perimeter using the alpha-shape 

      Arias Castro, Ery; Rodríguez Casal, Alberto (Institut Henri Poincaré, 2017)
      We consider the problem of estimating the perimeter of a smooth domain in the plane based on a sample from the uniform distribution over the domain. We study the performance of the estimator defined as the perimeter of the ...





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