Showing 1 - 10 of 18
This paper presents a study of a coordinated production inventory-system. In the proposed model, any echelon considers its successors as part of its inventory system and generates the replenishment order on the basis of operational information of its partners. We show that the coordinated...
Persistent link: https://www.econbiz.de/10013131474
Textbooks on Design of Experiments invariably start by explaining why one-factor-at-a-time (OAT) is an inferior method. Here we will show that in a model with all interactions a variant of OAT is extremely efficient, provided that we only have non-negative parameters and that there are only a...
Persistent link: https://www.econbiz.de/10013131493
Monte Carlo methods are simulation algorithms to estimate a numerical quantity in a statistical model of a real system … stimulated simulation analysts to develop ever more realistic models, so that the net result has not been faster execution of … simulation experiments; e.g., some modern simulation models need hours or days for a single 'run' (one replication of one …
Persistent link: https://www.econbiz.de/10013135680
, develop a `robust' methodology that accounts for uncertain environments. Our methodology uses Taguchi's view of the uncertain …
Persistent link: https://www.econbiz.de/10013155383
simulation models. This contribution discusses the different types of DOE for these three domains, but focusses on random … simulation. DOE may have two goals: sensitivity analysis including factor screening and optimization. This contribution starts …
Persistent link: https://www.econbiz.de/10012723285
, however, develops a 'robust' methodology for uncertain environments. This methodology uses Taguchi's view of the uncertain …
Persistent link: https://www.econbiz.de/10012723330
experiment; this design fixes the input combinations of the simulation model. These regression models uses a sequence of local …This chapter surveys two methods for the optimization of real-world systems that are modelled through simulation. These …-estimated through sequential designs. "Robust" optimization may use RSM or Kriging, and accounts for uncertainty in simulation inputs …
Persistent link: https://www.econbiz.de/10012956205
An important goal of simulation is optimization of the corresponding real system. We focus on simulation models with …, we treat the simulation model as a black box. We assume that the simulation is computationally expensive; therefore, we … use an inexpensive metamodel (approximation, emulator, surrogate) of the simulation model. A popular metamodel type is a …
Persistent link: https://www.econbiz.de/10013321790
This article uses a sequentialized experimental design to select simulation input combinations for global optimization …/output data of the simulation model (computer code). This design and analysis adapt the classic "expected improvement" (EI) in … estimator uses parametric bootstrapping. Classic EI and bootstrapped EI are compared through various test functions, including …
Persistent link: https://www.econbiz.de/10014185812
In the field of design of computer experiments (DoCE), Latin hypercube designs are frequently used for the approximation and optimization of black-boxes. In certain situations, we need a special type of designs consisting of two separate designs, one being a subset of the other. These nested...
Persistent link: https://www.econbiz.de/10014211213