Title
Tail sensitivity analysis in Bayesian networks
Abstract
The paper presents an efficient method for simulating the tails of a target variable Z = h(X) which depends on a set of basic variables X = (X1,...,Xn). To this aim, variables Xi;i = 1,...., n are sequentially simulated in such a manner that Z = h(x1,..., xi-1, Xi,..., Xn) is guaranteed to be in the tail of Z. When this method is difficult to apply, an alternative method is proposed, which leads to a low rejection proportion of sample values, when compared with the Monte Carlo method. Both methods are shown to be very useful to perform a sensitivity analysis of Bayesian networks, when very large confidence intervals for the marginal/conditional probabilities are required, as in reliability or risk analysis. The methods are shown to behave best when all scores coincide. The required modifications for this to occur are discussed. The methods are illustrated with several examples and one example of application to a real case is used to illustrate the whole process.
Year
Venue
Keywords
2013
UAI'96 Proceedings of the Twelfth international conference on Uncertainty in artificial intelligence
bayesian network,sensitivity analysis
DocType
Volume
ISBN
Journal
abs/1302.3564
1-55860-412-X
Citations 
PageRank 
References 
2
0.62
5
Authors
3
Name
Order
Citations
PageRank
Enrique Castillo155559.86
Cristina Solares2467.89
Patricia Gómez382.15