TY - GEN
T1 - Generalized continuous time bayesian networks and their GSPN semantics
AU - Codetta-Raiteri, Daniele
AU - Portinale, Luigi
PY - 2010
Y1 - 2010
N2 - We present an extension to Continuous Time Bayesian Networks (CTBN) called Generalized CTBN (GCTBN). The formalism allows one to model continuous time delayed variables (with exponentially distributed transition rates), as well as non delayed or "immediate" variables, which act as standard chance nodes in a Bayesian Network. The usefulness of this kind of model is discussed through an example concerning the reliability of a simple component-based system. The interpretation of GCTBN is proposed in terms of Generalized Stochastic Petri Nets (GSPN); the purpose is twofold: to provide a well-defined semantics for GCTBNin terms of the underlying stochastic process, and to provide an actual mean to perform inference (both prediction and smoothing) on GCTBN.
AB - We present an extension to Continuous Time Bayesian Networks (CTBN) called Generalized CTBN (GCTBN). The formalism allows one to model continuous time delayed variables (with exponentially distributed transition rates), as well as non delayed or "immediate" variables, which act as standard chance nodes in a Bayesian Network. The usefulness of this kind of model is discussed through an example concerning the reliability of a simple component-based system. The interpretation of GCTBN is proposed in terms of Generalized Stochastic Petri Nets (GSPN); the purpose is twofold: to provide a well-defined semantics for GCTBNin terms of the underlying stochastic process, and to provide an actual mean to perform inference (both prediction and smoothing) on GCTBN.
UR - http://www.scopus.com/inward/record.url?scp=84874709276&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84874709276
SN - 9789526033143
T3 - Proceedings of the 5th European Workshop on Probabilistic Graphical Models, PGM 2010
SP - 105
EP - 112
BT - Proceedings of the 5th European Workshop on Probabilistic Graphical Models, PGM 2010
T2 - 5th European Workshop on Probabilistic Graphical Models, PGM 2010
Y2 - 13 September 2010 through 15 September 2010
ER -