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Kaynar, Bahar
Ridder, Ad
Year of Publication: 
Series/Report no.: 
Tinbergen Institute Discussion Paper No. 09-084/4
There are various importance sampling schemes to estimate rare event probabilities in Markovian systems such as Markovian reliability models and Jackson networks. In this work, we present a general state dependent importance sampling method which partitions the state space and applies the cross-entropy method to each partition. We investigate two versions of our algorithm and apply them to several examples of reliability and queueing models. In all these examples we compare our method with other importance sampling schemes. The performance of the importance sampling schemes is measured by the relative error of the estimator and by the effciency of the algorithm. The results from experiments show considerable improvements both in running time of the algorithm and the variance of the estimator.
Rare Events
Importance Sampling
Large-Scale Markov Chains
Document Type: 
Working Paper

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