Marta Sánchez Sánchez- Doctor of Mathematics
- Universidad de Cádiz
Marta Sánchez Sánchez
- Doctor of Mathematics
- Universidad de Cádiz
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7
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Introduction
Current institution
Publications
Publications (7)
Bayesian methods are widely used to determine insurance premiums, though they are sometimes criticized for the arbitrariness in selecting prior distributions. To mitigate this issue, classes of priors incorporating expert knowledge have been proposed, allowing for the analysis of uncertainty through upper and lower bounds on Bayesian premiums. In t...
The COVID-19 pandemic has highlighted the need for finding mathematical models to forecast the evolution of the contagious disease and evaluate the success of particular policies in reducing infections. In this work, we perform Bayesian inference for a non-homogeneous Poisson process with an intensity function based on the Gompertz curve. We discus...
In the context of robust Bayesian analysis for multiparameter distributions, we introduce a new class of priors based on stochastic orders, multivariate total positivity of order 2 (M T P 2) and weighted distributions. We provide the new definition, its interpretation and the main properties and we also study the relationship with other classical c...
We study the propagation of uncertainty from a class of priors introduced by Arias-Nicolás et al. [(2016) Bayesian Analysis , 11 (4), 1107–1136] to the premiums (both the collective and the Bayesian), for a wide family of premium principles (specifically, those that preserve the likelihood ratio order). The class under study reflects the prior unce...
We address the problem of evaluating measurements of radionuclide activity concentration from a robust Bayesian perspective. As shown in previous studies, Bayesian incorporation of available prior information on the activity levels, together with the measured values, leads in general to an improvement in the quality of radioanalytical results. Sinc...
El satélite artificial GAIA (http://sci.esa.int/gaia/) es una de las misiones
espaciales más ambiciosas que desarrolla la Agencia Espacial Europea en estos
momentos. El gran reto científico y tecnológico que se pretende conseguir con
esta misión es la de registrar diferentes magnitudes físicas, con especial
interés en la precisión de la distancia,...
