| Autor: |
Yixi Shi, Kevin Leder, Jose Blanchet |
| Jazyk: |
angličtina |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Stochastic Systems, Vol 1, Iss 2, Pp 306-339 (2011) |
| Druh dokumentu: |
article |
| ISSN: |
1946-5238 |
| Popis: |
We consider a standard splitting algorithm for the rare-event simulation of overflow probabilities in any subset of stations in a Jackson network at level n, starting at a fixed initial position. It was shown in [8] that a subsolution to the Isaacs equation guarantees that a subexponential number of function evaluations (in n) suffices to estimate such overflow probabilities within a given relative accuracy. Our analysis here shows that in fact O(n2βV+1) function evaluations suffice to achieve a given relative precision, where βV is the number of bottleneck stations in the subset of stations under consideration in the network. This is the first rigorous analysis that favorably compares splitting against directly computing the overflow probability of interest, which can be evaluated by solving a linear system of equations with O(nd) variables. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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