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Partitioning Customers into Service Groups
Whitt, Ward - In: Management Science 45 (1999) 11, pp. 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 appropriate number of servers to each group. We...
Persistent link: https://www.econbiz.de/10009204637
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Allocating Objects in a Network of Caches: Centralized and Decentralized Analyses
Tawarmalani, Mohit; Kannan, Karthik; De, Prabuddha - In: Management Science 55 (2009) 1, pp. 132-147
We analyze the allocation of objects in a network of caches that collaborate to service requests from customers. A thorough analysis of this problem in centralized and decentralized setups, both of which occur in practice, is essential for understanding the benefits of collaboration. A key...
Persistent link: https://www.econbiz.de/10009214542
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Inducing Performance in a Queue via Prices: The Case of a Riverine Port
Dasgupta, Ani; Ghosh, Madhubani - In: Management Science 46 (2000) 11, pp. 1466-1484
To optimize large-scale queuing systems configurations, OR professionals typically use discrete event simulation … past data, but they typically disregard the technological insights provided by simulation. This paper combines both tools …
Persistent link: https://www.econbiz.de/10009214321
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A Batching Approach to Quantile Estimation in Regenerative Simulations
Seila, Andrew F. - In: Management Science 28 (1982) 5, pp. 573-581
This paper presents a new method, called the batch quantile method, for estimating quantiles in regenerative simulations. The quantile estimator is consistent and asymptotically normal, and the method can be easily implemented and does not require prior knowledge of the range of values the data...
Persistent link: https://www.econbiz.de/10009218026
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Current Issues in Frequency Domain Experimentation
Sargent, Robert G.; Som, Tapas K. - In: Management Science 38 (1992) 5, pp. 667-687
simulation. Experimental results are presented to demonstrate that (i) conclusions drawn from FDE are dependent on the …
Persistent link: https://www.econbiz.de/10009191165
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Note---On Making the Illustration Illustrative: A Comment on Banker, Conrad and Strauss
Frank, Richard G. - In: Management Science 34 (1988) 8, pp. 1026-1029
for appropriate analyses of hospital technology to be conducted. This paper comments on a recent study which was aimed at … comparing two methods of analyzing hospital costs which incorporate multiple outputs and inputs. The comment focuses on how …
Persistent link: https://www.econbiz.de/10009191638
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Control-Variate Models of Common Random Numbers for Multiple Comparisons with the Best
Nelson, Barry L.; Hsu, Jason C. - In: Management Science 39 (1993) 8, pp. 989-1001
Using common random numbers (CRN) in simulation experiment design is known to reduce the variance of estimators of …, specifically multiple comparisons with the best. These models explain the effect of CRN via a linear regression of the simulation … output on "control variates" that are functions of the simulation inputs. We establish theoretically, and illustrate …
Persistent link: https://www.econbiz.de/10009203702
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Planning Queueing Simulations
Whitt, Ward - In: Management Science 35 (1989) 11, pp. 1341-1366
Simple heuristic formulas are developed to estimate the simulation run lengths required to achieve desired statistical …-state characteristics such as expected equilibrium queue lengths. The formulas can be applied to design simulation experiments to develop … addition to indicating the approximate simulation run length required in each case of a designed experiment, the formulas can …
Persistent link: https://www.econbiz.de/10009203776
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Unanticipated Side Effects of Successful Quality Programs: Exploring a Paradox of Organizational Improvement
Sterman, John D.; Repenning, Nelson P.; Kofman, Fred - In: Management Science 43 (1997) 4, pp. 503-521
worsened. To explore the apparent paradox we develop a detailed simulation model of Analog, including operations, financial and …
Persistent link: https://www.econbiz.de/10009203780
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Real-Time Delay Estimation in Overloaded Multiserver Queues with Abandonments
Ibrahim, Rouba; Whitt, Ward - In: Management Science 55 (2009) 10, pp. 1729-1742
We use heavy-traffic limits and computer simulation to study the performance of alternative real-time delay estimators …
Persistent link: https://www.econbiz.de/10009203791