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Using phase-type models to cost stroke patient care across health, social and community services
McClean, Sally; Gillespie, Jennifer; Garg, Lalit; … - In: European Journal of Operational Research 236 (2014) 1, pp. 190-199
Stroke disease places a heavy burden on society, incurring long periods of time in hospital and community care, and …) in hospital. Phase-type models were then used to describe patient flows for each cluster. Also multiple outcomes, such as … states. This system represents different classes of patients in different hospital and community services states. Based on …
Persistent link: https://www.econbiz.de/10010753512
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Modeling sequence scrambling and related phenomena in mixed-model production lines
Rudolf, Gábor; Noyan, Nilay; Giard, Vincent - In: European Journal of Operational Research 237 (2014) 1, pp. 177-195
In this paper we examine the various effects that workstations and rework loops with identical parallel processors and stochastic processing times have on the performance of a mixed-model production line. Of particular interest are issues related to sequence scrambling. In many production...
Persistent link: https://www.econbiz.de/10011097839
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Computational results of an O∗(n4) volume algorithm
Lovász, L.; Deák, I. - In: European Journal of Operational Research 216 (2012) 1, pp. 152-161
Recently an O∗(n4) volume algorithm has been presented for convex bodies by Lovász and Vempala, where n is the number of dimensions of the convex body. Essentially the algorithm is a series of Monte Carlo integrations. In this paper we describe a computer implementation of the volume...
Persistent link: https://www.econbiz.de/10011052719
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Quasi-stationary distributions for discrete-state models
Doorn, Erik A. van; Pollett, Philip K. - In: European Journal of Operational Research 230 (2013) 1, pp. 1-14
This paper contains a survey of results related to quasi-stationary distributions, which arise in the setting of stochastic dynamical systems that eventually evanesce, and which may be useful in describing the long-term behaviour of such systems before evanescence. We are concerned mainly with...
Persistent link: https://www.econbiz.de/10010666101
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Stochastic Dominance and Mean-Variance Measures of Profit and Loss for Business Planning and Investment
Wong, Wing-Keung - Department of Economics, National University of Singapore - 2007
In this paper, we first extend the stochastic dominance (SD) theory by introducing the first three orders of both …
Persistent link: https://www.econbiz.de/10005225394
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Stochastic Dominance and Mean-Variance Measures of Profit and Loss for Business Planning and Investment
Wong, Wing-Keung - East Asian Bureau of Economic Research (EABER) - 2007
In this paper, we first extend the stochastic dominance (SD) theory by introducing the first three orders of both …
Persistent link: https://www.econbiz.de/10009365440
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The 2Bin system for controlling medical supplies at point-of-use
Rosales, Claudia R.; Magazine, Michael; Rao, Uday - In: European Journal of Operational Research 243 (2015) 1, pp. 271-280
provide insights to hospital management on system design considerations that favor the use of periodic or continuous review. …
Persistent link: https://www.econbiz.de/10011190744
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Joint-optimization of inventory policies on a multi-product multi-echelon pharmaceutical system with batching and ordering constraints
Guerrero, W.J.; Yeung, T.G.; Guéret, C. - In: European Journal of Operational Research 231 (2013) 1, pp. 98-108
deliveries, required service level rates and a new constraint on the ordering policy that fits best the hospital’s interests … place at the hospital showed a reduction of approximately 45% in the stock-on-hand value while still respecting the service …
Persistent link: https://www.econbiz.de/10010871268
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The optimal allocation of server time slots over different classes of patients
Creemers, Stefan; Beliën, Jeroen; Lambrecht, Marc - In: European Journal of Operational Research 219 (2012) 3, pp. 508-521
allocation of operating room time slots over different medical disciplines in a hospital. …
Persistent link: https://www.econbiz.de/10011052602
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Discrete Conditional Phase-type models utilising classification trees: Application to modelling health service capacities
Harper, P.R.; Knight, V.A.; Marshall, A.H. - In: European Journal of Operational Research 219 (2012) 3, pp. 522-530
Discrete Conditional Phase-type models (DC-Ph) consist of a process component (survival distribution) preceded by a set of related conditional discrete variables. This paper introduces a DC-Ph model where the conditional component is a classification tree. The approach is utilised for modelling...
Persistent link: https://www.econbiz.de/10010574171