4 papers
Sufficient conditions for some transform orders based on the quantile density ratio
A. Arriaza, F. Belzunce, C. MartÃnez-Riquelme
In this paper we focus on providing sufficient conditions for some transform orders for which the quantile densities ratio is non-monotone and, therefore, the convex transform orde…
Preservation of some stochastic orders by distortion functions with application to coherent systems with exchangeable components
Antonio Arriaza, Miguel Angel Sordo
The preservation of stochastic orders by distortion functions has become a topic of increasing interest in the reliability analysis of coherent systems. The reason of this interest…
A variance-based importance index for systems with dependent components
Antonio Arriaza, Jorge Navarro, Miguel Angel Sordo +1
This paper proposes a variance-based measure of importance for coherent systems with dependent and heterogeneous components. The particular cases of independent components and homo…
Predicting failure times of coherent systems
Jorge Navarro, Antonio Arriaza, Alfonso Suárez-Llorens
The article is focused on studying how to predict the failure times of coherent systems from the early failure times of their components. Both the cases of independent and dependen…