PyThia

PyThia is an open-source Python package of my working group at PTB for uncertainty quantification based on non-intrusive polynomial chaos expansions. It builds sparse polynomial surrogates of computationally expensive parametric models.

  • Available on GitLab and PyPI (pip install pythia-uq)
  • Used for Bayesian inversion and uncertainty analysis in metrological applications, e.g. the reconstruction of nanostructure shape parameters in scatterometry

Xerus

Xerus is a general purpose library for numerical calculations with higher order tensors, Tensor-Train Decompositions and general Tensor Networks. The focus of development was the simple usability and adaptability to any setting that requires higher order tensors or decompositions thereof.

Research software

I develop open-source reference implementations and numerical experiments accompanying my publications. An overview of all my repositories is available on GitHub.