# \#sensitivity-analysis **URL:** https://openturns.discourse.group/tag/sensitivity-analysis/10.md [Latest](https://openturns.discourse.group/latest.md) · [Categories](https://openturns.discourse.group/categories.md) · [Tags](https://openturns.discourse.group/tags.md) --- ## [Introducing an AI-Driven UQ and Sensitivity Analysis App Built with OpenTURNS](https://openturns.discourse.group/t/introducing-an-ai-driven-uq-and-sensitivity-analysis-app-built-with-openturns/395)
**Author:** [@mlegkovskis](https://openturns.discourse.group/u/mlegkovskis)\ **Replies:** 7\ **Last updated:** [December 3, 2024, 4:01pm UTC](https://openturns.discourse.group/t/introducing-an-ai-driven-uq-and-sensitivity-analysis-app-built-with-openturns/395 "2024-12-03T16:01:59Z")
Dear OpenTURNS Community, I wanted to share with you a new web application that I’ve developed during my Engineering PhD at the University of Warwick. This app aims to simplify uncertainty quantification (UQ) and Sensit… --- ## [Asymptotic p-values of HSIC indices](https://openturns.discourse.group/t/asymptotic-p-values-of-hsic-indices/391)
**Author:** [@Julien](https://openturns.discourse.group/u/Julien)\ **Replies:** 0\ **Last updated:** [October 10, 2024, 12:25pm UTC](https://openturns.discourse.group/t/asymptotic-p-values-of-hsic-indices/391 "2024-10-10T12:25:26Z")
Chers tous J’utilise OpenTURNS depuis peu et la diversité des sujets couverts et la documentation associée est assez impressionnante! Je cherche des précisions sur la définition précise de la fonction gamma utilisée po… --- ## [RBDFAST in OpenTurns?](https://openturns.discourse.group/t/rbdfast-in-openturns/380)
**Author:** [@xavfa](https://openturns.discourse.group/u/xavfa)\ **Replies:** 1\ **Last updated:** [September 25, 2024, 12:48pm UTC](https://openturns.discourse.group/t/rbdfast-in-openturns/380 "2024-09-25T12:48:03Z")
Hi to all, I’d like to use OpenTurns for some of its very attractive function (copula’s generation), but I’d also like to perform RBDFAST analysis. for whom who would’nt know, It consists in a more efficient way of per… --- ## [Derivative based Global sensitivity measures from Polynomial Chaos Expansion](https://openturns.discourse.group/t/derivative-based-global-sensitivity-measures-from-polynomial-chaos-expansion/320)
**Author:** [@gowthamr](https://openturns.discourse.group/u/gowthamr)\ **Replies:** 3\ **Last updated:** [August 28, 2024, 8:17am UTC](https://openturns.discourse.group/t/derivative-based-global-sensitivity-measures-from-polynomial-chaos-expansion/320 "2024-08-28T08:17:37Z")
Hi, I could see that the PC-based sensitivity analysis is implemented in OpenTURNS. Further, I would like to request whether OpenTURNS can also implement the Derivative-based Global sensitivity measures using PCE. The… --- ## [Calculate Sobol without model](https://openturns.discourse.group/t/calculate-sobol-without-model/370)
**Author:** [@Piniata](https://openturns.discourse.group/u/Piniata)\ **Replies:** 1\ **Last updated:** [June 18, 2024, 6:30pm UTC](https://openturns.discourse.group/t/calculate-sobol-without-model/370 "2024-06-18T18:30:07Z")
Hi there, In the past 3 weeks I ran a quite huge model in Matlab in a Monte Carlo simulation. I use Python for analyzing the outputs. One part of the analysis is the calculation of the Sobol’ indices of first and total… --- ## [SOBOL sensitivity analysis](https://openturns.discourse.group/t/sobol-sensitivity-analysis/286)
**Author:** [@peterdekam](https://openturns.discourse.group/u/peterdekam)\ **Replies:** 2\ **Last updated:** [May 9, 2023, 10:10pm UTC](https://openturns.discourse.group/t/sobol-sensitivity-analysis/286 "2023-05-09T22:10:26Z")
Hello all, I have a fuzzy cognitive model that is represented as a 27x27 matrix. How can I use openturns to perform a sensitivity analysis of modifying specific individual variables? I have read that openturns can perfor… --- ## [Screening with HSIC coeff](https://openturns.discourse.group/t/screening-with-hsic-coeff/232)
**Author:** [@Flore](https://openturns.discourse.group/u/Flore)\ **Replies:** 2\ **Last updated:** [January 24, 2023, 2:46pm UTC](https://openturns.discourse.group/t/screening-with-hsic-coeff/232 "2023-01-24T14:46:08Z")
Hello ! I am trying to perform screening with HSIC coeff, based on results already done (DOE such as LHS…) I am wondering : which estimatorType to use : HSICVStat or HSICUStat (I tried both) for covarianceModelCollec… --- ## [Options to draw graph for HSIC](https://openturns.discourse.group/t/options-to-draw-graph-for-hsic/218)
**Author:** [@Flore](https://openturns.discourse.group/u/Flore)\ **Replies:** 2\ **Last updated:** [June 28, 2022, 3:02pm UTC](https://openturns.discourse.group/t/options-to-draw-graph-for-hsic/218 "2022-06-28T15:02:46Z")
Hello everybody I begin to use HSIC modul with openturns I would like to know if it is possible to change the input parameters flags on graph By default it is ‘X1’, ‘X2’ etc But in my case input parameter numerotatio… --- ## [Asymptotic distribution of dependence measures](https://openturns.discourse.group/t/asymptotic-distribution-of-dependence-measures/219)
**Author:** [@regislebrun](https://openturns.discourse.group/u/regislebrun)\ **Replies:** 1\ **Last updated:** [June 27, 2022, 8:46am UTC](https://openturns.discourse.group/t/asymptotic-distribution-of-dependence-measures/219 "2022-06-27T08:46:24Z")
We could add services to estimate the classical dependence measures and their associated asymptotic distributions. The relevant formulas are in the attached document. Estimation\_mesures\_dependance.pdf (336.9 KB) --- ## [Possible evaluation of Sobol indices directly from the FunctionalChaosAlgorithm?](https://openturns.discourse.group/t/possible-evaluation-of-sobol-indices-directly-from-the-functionalchaosalgorithm/207)
**Author:** [@SarahIaquinta](https://openturns.discourse.group/u/SarahIaquinta)\ **Replies:** 2\ **Last updated:** [May 11, 2022, 11:58am UTC](https://openturns.discourse.group/t/possible-evaluation-of-sobol-indices-directly-from-the-functionalchaosalgorithm/207 "2022-05-11T11:58:16Z")
Hello, Is there a way to compute the Sobol indices directly from the FunctionalChaosAlgorithm class? Regards, Sarah --- ## [Help using otmorris module](https://openturns.discourse.group/t/help-using-otmorris-module/161)
**Author:** [@Flore](https://openturns.discourse.group/u/Flore)\ **Replies:** 1\ **Last updated:** [October 5, 2021, 7:42am UTC](https://openturns.discourse.group/t/help-using-otmorris-module/161 "2021-10-05T07:42:19Z")
Hello I planned to run a Morris experiment for my computational model. There are a lot of input parameters (about 40) and several scalar outputs (about 10 results) The results will be loaded from a CSV file (because m… --- ## [Otmorris - sensitivity from imported full factorial design](https://openturns.discourse.group/t/otmorris-sensitivity-from-imported-full-factorial-design/110)
**Author:** [@gblondet](https://openturns.discourse.group/u/gblondet)\ **Replies:** 4\ **Last updated:** [April 13, 2021, 1:36pm UTC](https://openturns.discourse.group/t/otmorris-sensitivity-from-imported-full-factorial-design/110 "2021-04-13T13:36:37Z")
Hello, I would like to know if it is possible to import a full factorial DoE with results and run a Morris sensitivity analysis on it. I think it may be, since each point of the grid is evaluated, and the last thing to … --- ## [Simulation sensitivity analysis with Importance Sampling](https://openturns.discourse.group/t/simulation-sensitivity-analysis-with-importance-sampling/102)
**Author:** [@dumas](https://openturns.discourse.group/u/dumas)\ **Replies:** 0\ **Last updated:** [February 26, 2021, 5:33pm UTC](https://openturns.discourse.group/t/simulation-sensitivity-analysis-with-importance-sampling/102 "2021-02-26T17:33:02Z")
Hi, I recently needed to compute the sensitivity indices of the probability of failure and I used the SimulationSensitivityAnalysis class. However I think this does not work properly if I perform a simulation with weigh… --- ## [Chaos Vs Saltelli](https://openturns.discourse.group/t/chaos-vs-saltelli/70)
**Author:** [@jmp](https://openturns.discourse.group/u/jmp)\ **Replies:** 6\ **Last updated:** [December 23, 2020, 1:50pm UTC](https://openturns.discourse.group/t/chaos-vs-saltelli/70 "2020-12-23T13:50:00Z")
Hi, I have performed a bunch of 100k simulation using a satellite reentry software and I’m trying to analyse its sensitivity to perturbations in the input parameters. Using the PCE approach I get results that are consi… --- ## [Mauntz-Kucherenko formula](https://openturns.discourse.group/t/mauntz-kucherenko-formula/68)
**Author:** [@josephmure](https://openturns.discourse.group/u/josephmure)\ **Replies:** 2\ **Last updated:** [December 2, 2020, 1:45pm UTC](https://openturns.discourse.group/t/mauntz-kucherenko-formula/68 "2020-12-02T13:45:33Z")
This post follows the discussion started on Github: In the following, I use the notations defined on this page of the doc: Applying Equation (12) of the original paper the Mauntz-Kucherenko estimator of the firs…