IPSAL: Implementação do Método dos Efeitos Elementares de Morris para Saída Vetorial

Aline Fernanda da Silva Oliveira; Fabio Freitas Ferreira; Fabio Gonçalves; Antonio Espósito Junior; Thiago Heidi Horita; Wagner Rambaldi Telles; Gustavo Bastos Lyra

doi:10.14295/vetor.v34i2.18214

Authors

Aline Fernanda da Silva Oliveira Universidade Federal Fluminense / Aluna de Graduação
Fabio Freitas Ferreira Universidade Federal Fluminense
Fabio Gonçalves Universidade Federal Fluminense / Professor Associado
Antonio Espósito Junior Universidade Federal Fluminense / Professor Associado
Thiago Heidi Horita Universidade Federal Fluminense / Aluno de Pós Graduação
Wagner Rambaldi Telles Universidade Federal Fluminense / Professor Associado
Gustavo Bastos Lyra Universidade Federal Rural do Rio de Janeiro / Professor Associado

DOI:

https://doi.org/10.14295/vetor.v34i2.18214

Keywords:

Elementary Effect, Sensitivity Analysis, Morris Method, IPSAL, Scilab

Abstract

Sensitivity analysis is essential for understanding the impact of a model's inputs on its output. The study identifies which inputs are influential in a model. The assessment of a model's sensitivity can be analyzed locally, only around a nominal point in the input sample space, or globally, considering changes within the entire input mutability space. The Morris method is a all-at-a-time, one-input-at-a-time, global analysis method. It generates sets of model inputs using a random sampling strategy, which is achieved through so-called trajectory matrices. The Morris method uses the mean and standard deviation of elementary effects to infer the model's sensitivity to an input, and possible correlations between them. It is in this sense that the objective of this work is to present the Morris module in the Inverse Problem and Sensitivity Analysis Library developed in Scilab, applied in a practical case.

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