Journal
MATHEMATICS AND COMPUTERS IN SIMULATION
Volume 81, Issue 3, Pages 506-514Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matcom.2009.09.005
Keywords
Sensitivity analysis; Global sensitivity indices; Multidimensional numerical integration; Adaptive Monte Carlo algorithm
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Sensitivity analysis is a powerful technique used to determine robustness, reliability and efficiency of a model. The main problem in this procedure is the evaluating total sensitivity indices that measure a parameter's main effect and all the interactions involving that parameter. From a mathematical point of view this problem is presented by a set of multidimensional integrals. In this work a simple adaptive Monte Carlo technique for evaluating Sobol' sensitivity indices is developed. A comparison of accuracy and complexity of plain Monte Carlo and adaptive Monte Carlo algorithms is presented. Numerical experiments for evaluating integrals of different dimensions are performed. (C) 2009 Published by Elsevier B.V. on behalf of IMACS.
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