UQ with UQLab

Developers Corner Learn more about the UQLab project with news, updates, and stories from inside the development team. FAQ Here you can find more detailed answers to the frequently asked questions (FAQ) on the UQLab software. Read this post further for an index of the FAQ. Benchmarks Library of test functions and data sets to test your uncertainty quantification (UQ) algorithms. You know additional test functions or data sets? Share them by creating a new topic here! Read this post further for an index of the benchmark cases. Feature Requests Category for discussing improvements of the existing UQLab features and any new ideas for the upcoming features. Community Q&A and How To This is where you can ask any questions if you’re experiencing problems with UQLab. By and for the community. Follow the community guidelines for posting questions and answers. Find UQLab tutorial, tips, tricks, hacks and share your workflow here!

Topic	Replies	Views	Activity
Bayesian: using Posterior distribution as Prior for a second analysis Community Q&A and How To inversion	2	25	February 6, 2023
[Feature Proposal] Nested Sampling Feature Requests	0	8	February 6, 2023
Unable to fit LogNormal distribution to the given data Community Q&A and How To input	4	56	February 5, 2023
Sensitivity analyses by Spearman’s correlation coefficient Community Q&A and How To sensitivity	2	33	January 23, 2023
PCE LOO-CV and validation error Community Q&A and How To pce	3	94	January 20, 2023
How to combine PCA with PCE in UQLab? Community Q&A and How To	2	47	January 20, 2023
Matlab wrong:number of permutations too high: would require 1.859578e+04 MB, while the specified max is 8192 MB Community Q&A and How To	1	46	January 13, 2023
Stochastic spectral embedding (SSE) for Global sensitivity analysis Community Q&A and How To	1	118	January 4, 2023
How to propagate de uncertainty of a inverted calibrated model? Community Q&A and How To inversion	1	58	January 4, 2023
Error with uq_inversion_likelihood for calibration of a multi-output model Community Q&A and How To inversion	3	49	January 4, 2023
Confusion about equation (1.37) in the UQLab User Manual Structural Reliability (Rare Event Estimation) Community Q&A and How To reliability	1	86	January 3, 2023
Sampling strategies Community Q&A and How To	13	98	December 20, 2022
Deterministic, sweep parameters in UQLab Community Q&A and How To	5	53	December 17, 2022
How to load a PCE metamodel in python and test it? Community Q&A and How To pce , metamodeling	2	77	December 7, 2022
Key Assumptions ( Kriging and PCE) Community Q&A and How To	0	44	December 5, 2022
Deterministic Design Optimization (DDO) Community Q&A and How To rbdo	4	337	December 5, 2022
Error when Isight calls UQlab Community Q&A and How To pce	0	37	December 4, 2022
How to implement Isight to connect with UQlab to complete the building of active learning surrogate model? Community Q&A and How To reliability	2	141	December 2, 2022
About Isight Calling UQLab Unable to Recognize the matlab Program Community Q&A and How To pce , reliability	0	51	December 1, 2022
Resource on Polynomial Chaos Expansion Community Q&A and How To metamodeling , pce , input , reliability	2	72	November 30, 2022
Error: NAN results after performing Morris analysis Community Q&A and How To sensitivity	2	50	November 26, 2022
RBDO using hybrid GA for optimization - local and global cost plot Community Q&A and How To rbdo , input , reliability , sensitivity	2	71	November 22, 2022
PCE-Changing constant input doesn't effect output, why? Community Q&A and How To pce , input	3	140	November 15, 2022
RBDO Concept Community Q&A and How To rbdo , input , reliability	2	63	November 8, 2022
Multilevel uncertainty quantification with Bayesian inversion Community Q&A and How To inversion	3	109	November 3, 2022
PCE sensitivity indices Community Q&A and How To sensitivity , pce	3	131	October 29, 2022
Whether PCE can be improved by optimizing hyperparameters through optimization algorithms？ Community Q&A and How To pce	0	67	October 14, 2022
How to evaluate bootstrap PCE for completed SSE? Community Q&A and How To pce , metamodeling	2	91	October 12, 2022
Report a bug: UQLink cannot support Soft Constraints Community Q&A and How To rbdo , uqlink	2	145	October 10, 2022
Error: uq_gradient (line 180) ExpDesign(ii).Y = fun(ExpDesign(ii).X); Community Q&A and How To metamodeling , reliability	2	102	October 8, 2022