Publications des scientifiques de l'IRD

Mara T. A., Belfort B., Fontaine V., Younes Anis. (2017). Addressing factors fixing setting from given data : a comparison of different methods. Environmental Modelling and Software, 87, p. 29-38. ISSN 1364-8152.

Titre du document
Addressing factors fixing setting from given data : a comparison of different methods
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000389785300003
Auteurs
Mara T. A., Belfort B., Fontaine V., Younes Anis
Source
Environmental Modelling and Software, 2017, 87, p. 29-38 ISSN 1364-8152
This paper deals with global sensitivity analysis of computer model output. Given an independent input sample and associated model output vector with possibly the vector of output derivatives with respect to the input variables, we show that it is possible to evaluate the following global sensitivity measures: (i) the Sobol' indices, (ii) the Borgonovo's density-based sensitivity measure, and (iii) the derivative-based global sensitivity measure of Sobol' and Kucherenko. We Compare the efficiency of the different methods to address factors fixing setting, an important issue in global sensitivity analysis. First, global sensitivity analysis of the Ishigami function is performed with the different methods. Then, they are applied to two different responses of a soil drainage model. The results show that the polynomial chaos expansion for estimating Sobol' indices is the most efficient approach.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Hydrologie [062] ; Pédologie [068] ; Informatique [122]
Localisation
Fonds IRD [F B010068763]
Identifiant IRD
fdi:010068763
Contact