Zobrazeno 1 - 10
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pro vyhledávání: '"Richard F. Serfozo"'
Autor:
Sung-Seok Ko, Richard F. Serfozo
Publikováno v:
Naval Research Logistics. 55:432-443
We consider a processing network in which jobs arrive at a fork-node according to a renewal process. Each job requires the completion of two tasks, which are instantaneously assigned by the fork-node to two task-processing nodes that operate like G/M
Autor:
Richard F. Serfozo
Publikováno v:
Advances in Applied Probability. 37:801-818
In this study, we characterize the equilibrium behavior of spatial migration processes that represent population migrations, or birth-death processes, in general spaces. These processes are reversible Markov jump processes on measure spaces. As a pre
Autor:
Sung-Seok Ko, Richard F. Serfozo
Publikováno v:
Advances in Applied Probability. 36:854-871
We study a fork-join processing network in which jobs arrive according to a Poisson process and each job splits into m tasks, which are simultaneously assigned to m nodes that operate like M/M/s queueing systems. When all of its tasks are finished, t
Publikováno v:
IIE Transactions. 36:145-153
A key performance parameter of a manufacturing network or supply chain is its cycle time; the time that a typical item spends in the network. A previous simulation study on a semiconductor assembly and test facility showed that cycle times could be r
Publikováno v:
Queueing Systems. 37:233-257
We consider queueing, fluid and inventory processes whose dynamics are determined by general point processes or random measures that represent inputs and outputs. The state of such a process (the queue length or inventory level) is regulated to stay
Publikováno v:
Mathematics of Operations Research. 24:865-886
This study introduces a spatial queueing model for stochastic service systems in which customers or units move about and receive services in a region or a general space. The state of the system at any time is a point process that describes the number
Autor:
Richard F. Serfozo, Sungyeol Kang
Publikováno v:
Journal of Applied Probability. 36:194-210
A basic issue in extreme value theory is the characterization of the asymptotic distribution of the maximum of a number of random variables as the number tends to infinity. We address this issue in several settings. For independent identically distri
Publikováno v:
Operations Research. 47:125-130
This study introduces a generalization of reversibility called partition-reversibility. A Markov jump process is partition-reversible if the average numbers of its transitions between sets that partition the state space are equal. In this case, its s
Publikováno v:
Management Science. 45(11):1579-1592
We explore the issues of when and how to partition arriving customers into service groups that will be served separately, in a first-come first-served manner, by multiserver service systems having a provision for waiting, and how to assign an appropr
Publikováno v:
Management Science. 45(3):382-394
Airport capacity could increase if, even during inclement weather, independent landings could occur on parallel runways only about half a mile apart. A key question about such operations is whether the collision risk they entail is acceptably low. Pu