Version 3.5.0

New features:

• Bayesian calibration of hierarchical models using an adaptive Metropolis-within-Gibbs sampling algorithm

Changes:

• Updated interfaces
• Updates to qfem-0016 example

Version 3.4.0

New for Version 3.4.0:

Option for multi-fidelity Monte Carlo.

Version 3.3.0

Major Changes to quoFEM for Version 3.3.0:

1. Multimodel uncertainty propagation
2. Stochastic kriging without replications
3. Display of correlation coefficients within the input/output dataset
4. Switching the display order of the UQ method and UQ engine

Works with SimCenterCommon: 8ecc736e8c68afc522a846dcb7699076ccc9538e
and SimCenterBackendApplications: a4d0c1f3413eb6a0e105519abb4b78fc9159cab8

Version 3.2.0

Major Changes:

1. UQ Options:

• Support for a gradient-free optimization method
• Support for stochastic Kriging
• Fast global sensitivity analysis for very high dimensional output (tested on 2 million QoIs)

2. FEM

• "None" option for FEM that can be used when creating surrogates if user has data for which surrogate is required.

3. Misc

• New option to discard working directories after each model simulation
• Significantly enhanced speed of surrogate validation and prediction
• Improved user interface including error bounds of the surrogate prediction
• Renaming of options:
  (1) OpenseesPy->python (FEM), (2) Parameters estimation -> deterministic calibration (UQ/Dakota), (3) Inverse problem -> Bayesian calibration (UQ/Dakota)

Version 3.1.0

Changes:

• New efficient global sensitivity analysis method for high-dimensional output (GSA-PCA)

Minor Changes:

• "Save RVs" and "Save QoIs" buttons added to the results tab spreadsheet

• “NaN” handling option added to SimCenterUQ engine

• Improvements to reliability analysis and global sensitivity analysis user interface

• Minor bug fixes in the user interface, surrogate modeling, and sensitivity analysis scripts

Version 3.0.0

Changes:

• New option for surrogate modeling using Probabilistic Learning on Manifolds (PLoM)
• Restructured surrogate model scripts
• Improvements to the user interface for RV, QoI and RES tabs
• Improvements to the message are
• Major restructuring of the backend
• Minor bug fixes in the user interface, surrogate modeling and sensitivity analysis scripts
• Updated example files

NOTE: Input files for version 2.x and 1.x are not compatible with this version.

Version2.4.1

v2.4.1

fmk - updating version ta to 2.4.1

Version 2.4.0

A new version of quoFEM which provides the following updates to the previous version:

Major

• new forward propagation method in SimCenterUQ to import existing sample sets (eg. samples obtained by MCMC)
• new multi-fidelity surrogate modeling option in SimCenterUQ
• local/remote parallel computing support for SimCenterUQ methods

Minor

• visualization improved for surrogate results
• more adaptive design of experiments options added for surrogate modeling
• nugget optimization options added for surrogate modeling
• minor improvements and bug fixes

Version 2.3.0

Major changes to 2.2.0 include:
Data for calibration methods (DREAM, TMCMC, parameter estimation) required to be provided in a file
Option to supply a covariance structure for error in Bayesian calibration methods
Option to calibrate values of multipliers on error covariance structure in Bayesian calibration methods
Log-likelihood function specification made optional for TMCMC

Version 2.2.0

Major Changes include:

Included new sensitivity method: probability model-based global sensitivity analysis (PM-GSA)
Included new reliability method: transitional Markov chain Monte Carlo (TMCMC)
Option to allow user to include their own UQ engine
Option to allow user to include their own FEM engine

Minor Changes includes changes to UI to reduce wasted space