seminarios en cmat.edu.uy seminarios en cmat.edu.uy
Mie Abr 11 21:00:21 -03 2018

Viernes 13 de abril, de 10:30 AM a 11:30 AM, Salón de Seminarios. Centro de Matemática

Expositor: Radu Stefan Stoica, Université de Lorraine, Insitut Elie Cartan de Lorraine

Título: ABC Shadow algorithm: a tool for statistical analysis of spatial patterns

Resumen: This talk presents an original ABC algorithm, {\it ABC Shadow}, that can be applied to sample posterior densities that are continuously differentiable. The proposed algorithm solves the main condition to be fulfilled by any ABC algorithm, in order to be useful in practice. This condition requires enough samples in the parameter space region, induced by the observed statistics. The algorithm is tuned on the posterior of a Gaussian model which is entirely known, and then it is applied for the statistical analysis of several spatial patterns. These patterns are issued or assumed to be outcomes of point processes. The considered models are: Strauss, Candy and area-interaction

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