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Variance-based sensitivity analysis in the presence of correlated input variables

Methodology 2024-08-12 v1 Machine Learning Statistics Theory Machine Learning Statistics Theory

Abstract

In this paper we propose an extension of the classical Sobol' estimator for the estimation of variance based sensitivity indices. The approach assumes a linear correlation model between the input variables which is used to decompose the contribution of an input variable into a correlated and an uncorrelated part. This method provides sampling matrices following the original joint probability distribution which are used directly to compute the model output without any assumptions or approximations of the model response function.

Keywords

Cite

@article{arxiv.2408.04933,
  title  = {Variance-based sensitivity analysis in the presence of correlated input variables},
  author = {Thomas Most},
  journal= {arXiv preprint arXiv:2408.04933},
  year   = {2024}
}

Comments

presented at 5th International Conference on Reliable Engineering Computing (REC), Brno, Czech Republic, 13-15 June, 2012