Details van artikel 154 van 180 gevonden artikelen
Replenishment planning in discrete-time, capacitated, non-stationary, stochastic inventory systems
Titel:
Replenishment planning in discrete-time, capacitated, non-stationary, stochastic inventory systems
Auteur:
Bollapragada, Ramesh Rao, Uday S.
Verschenen in:
IIE transactions
Paginering:
Jaargang 38 (2006) nr. 7 pagina's 605-617
Jaar:
2006-06-01
Inhoud:
In this paper, we examine a single-product, discrete-time, non-stationary, inventory replenishment problem with both supply and demand uncertainty, capacity limits on replenishment quantities, and service level requirements. A scenario-based stochastic program for the static, finite-horizon problem is presented to determine replenishment orders over the horizon. We propose a heuristic that is based on the first two moments of the random variables and a normal approximation, whose solution is compared with the optimal from a simulation-based optimization method. Computational experiments show that the heuristic performs very well (within 0.25% of optimal, on average) even when the uncertainty is non-normal or when there are periods without any supply. We also present insights obtained from sensitivity analyses on the effects of supply parameters, shortage penalty costs, capacity limits, and demand variance. A rolling-horizon implementation is illustrated.
Uitgever:
Taylor & Francis
Bronbestand:
Elektronische Wetenschappelijke Tijdschriften
Details van artikel 154 van 180 gevonden artikelen
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