Statistical analysis of measures of non-convexity

Cholaquidis, Alejandro - Fraiman, Ricardo - Moreno, Leonardo - Pateiro-López, Beatriz

Resumen:

Several measures of non-convexity (departures from convexity) have been introduced in the literature, both for sets and functions. Some of them are of geometric nature, while others are more of topological nature. We address the statistical analysis of some of these measures of non-convexity of a set S, by dealing with their estimation based on a sample of points in S. We introduce also a new measure of non-convexity. We discuss briefly about these different notions of non-convexity, prove consistency and find the asymptotic distribution for the proposed estimators. We also consider the practical implementation of these estimators and illustrate their applicability to a real data example.


Detalles Bibliográficos
2022
ANII: FCE-1-2019-1-156054
CONVEX HULL
CONVEXITY MEASURE
SHAPE ANALYSIS
SKIN LESIONS
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/44031
Acceso abierto
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)