ABSTRACT
In this paper, a hybrid discrete-continuous Graphical Duration Models is proposed. Since the interest of the Weibull density was demonstrated for reliability analysis, this paper focuses on the use of Weibull densities for modeling sojourn times in each state of the system. This extension of the standard Graphical Duration Model (GDM) requires a specific structure that we call Weibull-Hybrid Graphical Duration Models (W-HGDM). The main contribution of this study lays in the proposal of a specific inference algorithm for such hybrid networks. Finally, comparisons of reliability estimation will be proposed for both standard GDM and W-HGDM.
