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Applications of Variance Reduction Techniques in Construction Simulation
Author(s) -
ABOURIZK SIMAAN M.,
GONZALEZQUEVEDO ANTONIO A.,
HALPIN DANIEL W.
Publication year - 1990
Publication title -
computer‐aided civil and infrastructure engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.773
H-Index - 82
eISSN - 1467-8667
pISSN - 1093-9687
DOI - 10.1111/j.1467-8667.1990.tb00390.x
Subject(s) - variance reduction , variance (accounting) , computer science , reduction (mathematics) , stochastic simulation , sample (material) , algorithm , statistics , mathematics , chemistry , geometry , accounting , chromatography , business
A technique that can be used to reduce the variance of a stochastic simulation output is reviewed. This technique allows the user to reduce the number of simulation runs without sacrificing the level of confidence of the output. This technique entails inducing an artificial correlation between the various runs. The specific technique presented uses common random numbers (CRN). The use of CRN can be applied to the comparison of alternative systems. Using CRN when comparing alternatives insures that the comparison is properly conducted. A sample simulation is presented in order to illustrate these two applications of CRN.