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(DOE) and linear regression analysis. Unfortunately, classic theory assumes a single simulation response that is normally … and independently distributed with a constant variance; moreover, the regression (meta)model of the simulation model's I …
Persistent link: https://www.econbiz.de/10014052879
methods use either linear regression metamodels, or Kriging (Gaussian processes). The metamodel type guides the design of the … experiment; this design fixes the input combinations of the simulation model. These regression models uses a sequence of local …
Persistent link: https://www.econbiz.de/10012956205
The least-absolute-deviations (LAD) estimator for a median- regression model does not satisfy the standard conditions … also hold for symmetrical t and c2 tests for censored median regression models …
Persistent link: https://www.econbiz.de/10014106259
This article uses a sequentialized experimental design to select simulation input combinations for global optimization, based on Kriging (also called Gaussian process or spatial correlation modeling); this Kriging is used to analyze the input/output data of the simulation model (computer code)....
Persistent link: https://www.econbiz.de/10014185812
Kriging (Gaussian process, spatial correlation) metamodels approximate the Input/Output (I/O) functions implied by the underlying simulation models; such metamodels serve sensitivity analysis and optimization, especially for computationally expensive simulations. In practice, simulation analysts...
Persistent link: https://www.econbiz.de/10014203752
Distribution-free bootstrapping of the replicated responses of a given discreteevent simulation model gives bootstrapped Kriging (Gaussian process) metamodels; we require these metamodels to be either convex or monotonic. To illustrate monotonic Kriging, we use an M/M/1 queueing simulation with...
Persistent link: https://www.econbiz.de/10014166285
This note reconciles existing evidence on the abilities of the bootstrap with its use in the cost-effectiveness literature. We emphasise the role played by pivotal statistics to explain the ability of the bootstrap to provide asymptotic refinements for the Incremental Net Benefit statistic. The...
Persistent link: https://www.econbiz.de/10012953199
This paper uses a sequentialized experimental design to select simulation input combinations for global optimization, based on Kriging (also called Gaussian process or spatial correlation modeling); this Kriging is used to analyze the input/output data of the simulation model (computer code)....
Persistent link: https://www.econbiz.de/10013141684
Optimization of simulated systems is the goal of many methods, but most methods assume known environments. We, however, develop a `robust' methodology that accounts for uncertain environments. Our methodology uses Taguchi's view of the uncertain world, but replaces his statistical techniques by...
Persistent link: https://www.econbiz.de/10013155383
A novel simulation-based methodology is proposed to test the validity of a set of marginal time series models, where the dependence structure between the time series is taken "directly" from the observed data. The procedure is useful when one wants to summarize the test results for several time...
Persistent link: https://www.econbiz.de/10010250513