hIPPYlib - Version 3.1.0

• Switch to GitHub Actions for CI
• Introduce a new function BiLaplacianComputeCoefficients to estimate the PDE coefficient based on a prescribed marginal variance and correlation length
• Allow BiLaplacianPrior to take spatially varying coefficients as input
• Add support for non-Gaussian noise models
• Introduce utilities to interpolate cartesian data (expressed as numpy arrays) on a dolfin mesh.

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla over 3 years ago

hIPPYlib - Version 3.0.0

• Support for FEniCS 2019.1.0
• Introduce randomized SVD algorithms
• Add forward UQ capabilities, using Taylor approximations as control variates
• Increase coverage of unit testing in CI
• Use argparse to set parameters in application drivers from command line
• Use dl.XDMFFile to export solutions for visualization in Paraview in all application driver
• Improved Model interfaces

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla about 6 years ago

hIPPYlib - Version 2.3.0

• Reimplement BiLaplacianPrior and MollifiedBiLaplacianPrior using a more general framework SqrtPrecisionPDE_Prior, which also supports Gaussian vector fields.
• Update the prior distribution in model_subsurf.py and tutorial/3_SubsurfaceBayesian.ipynb to use Robin boundary conditions to alleviate boundary artifacts.
• Update the data misfit term in model_ad_diff.py and tutorial/4_AdvectionDiffusionBayesian.ipynb to use discrete observations in space and time.

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla over 6 years ago

hIPPYlib - Version 2.2.1

• Bug fix: missing mpi_comm in TimeDependentVector
• Bug fix in the initialization of the global variable parRandom

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla about 7 years ago

hIPPYlib - Version 2.2.0

• Add new class GaussianRealPrior that implements a finite-dimensional Gaussian prior
• Add a callback user-defined function that can be called at the end of each inexact Newton CG iteration
• Add a __version__ and version_info attribute to hIPPYlib
• Add setup.py to (optionally) install hIPPYlib via pip
• Add deprecation mechanism
• Deprecate TimeDependentVector.copy(other) in favor of TimeDependentVector.copy() for consistency with dolfin.Vector.copy
• Deprecate _BilaplacianR.inner(x,y) for consistency with dolfin.Matrix
• CI enhancement via build matrix

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla over 7 years ago

hIPPYlib - Version 2.1.1

• Update README.md and paper according to JOSS reviewers's comments
• Add contributing guidelines
• Fix some typos in notebooks (thanks to Christian Boehm)

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla over 7 years ago

hIPPYlib - Version 2.1.0

• Alleviate boundary artifacts (inflation of marginal variance) in Bilaplacian-like priors using Robin boundary conditions
• Allow the user to select different matplotlib colormaps in jupyter notebooks
• Bugfix in the acceptance ratio of the gpCN MCMC proposal

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla over 7 years ago

hIPPYlib - Version 2.0.0

This major release of hIPPYlib includes the following new features:

• Non-Gaussian Bayesian inference capabilities using advanced dimension independet Mark Chain Monte Carlo methods (mMALA, pCN, gpCN, ISMAP).
• Support domain-decomposition parallelization: new parallel random number generator, and refactored randomized eigensolvers
• Basic documentation of all classes in hIPPYlib using sphinx (thanks to E. Khattatov and I. Ambartsumyan)

Interface changes: - The parameter, usually labeled a, throughout the library, has been renamed to m, for model parameter.

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla almost 8 years ago

hIPPYlib - Version 1.6.0

• Bugfix in PDEVariationalProblem.solveIncremental for non self-adjoint models
• Add new estimator for the trace and diagonal of the prior covariance using randomized eigendecomposition
• In all examples and tutorial, use enviromental variable HIPPYLIB_BASE_DIR (if defined) to add hIPPYlib to PYTHONPATH

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla almost 8 years ago

hIPPYlib - Version 1.5.0

• Add support for FEniCS 2017.2

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla about 8 years ago

hIPPYlib - Version 1.4.0

• Add support for Python 3
• Enchantments in PDEVariationalProblem: it now supports multiple Dirichlet condition and Vector & Mixed FunctionSpaces
• Bugfix: Set the correct number of global rows, when targets points fall outside the computational domain
• More extensive testing with Travis Integration

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla over 8 years ago

hIPPYlib - Version 1.3.0

• Improve hashdist installation support
• Switch license to GPL-2
• Add support for FEniCS 2017.1

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla almost 9 years ago

hIPPYlib - Version 1.2.0

• hIPPYlib now support FEniCS 2016.2 as suggested version of FEniCS
• Update FEniCS installation instructions (hashdist, docker)
• Update the format of the notebooks to nbformat 4
• Add Travis integration

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by uvilla almost 9 years ago

hIPPYlib - Version 1.1.0

• Add partial support for FEniCS 2016.1 (Applications and Tutorial)
• Performance improvement for randomized eigensolvers

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by over 9 years ago

hIPPYlib - Version 1.0.2

• Introduce the use of vector2Function to safely convert dolfin.Vector to dolfin.Function
• Optimize the PDEVariationalProblem to exploit the case when the forward problem is linear.
• Fix 1_FEniCS101 notebook

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by over 9 years ago

hIPPYlib - Version 1.0.1

Add support in hippylib.Model and hippylib.Misfit for misfit functionals with explicit dependence on the parameter.

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by over 9 years ago

hIPPYlib - Version 1.0.0

Initial release

Scientific Software - Peer-reviewed - Jupyter Notebook
Published by over 9 years ago