IBCDFO

Interpolation-Based Composite Derivative-Free Optimization, part of POptUS: Practical Optimization Using Structure.

A collection of interpolation-based methods for solving structured, composite derivative-free optimization problems.

Repository

MATLAB

Python

License & Copyright

All code included in IBCDFO is open source, with the specific license for each component provided in the corresponding top-level subdirectory. If a subdirectory does not contain a LICENSE file, it is covered by the IBCDFO LICENSE.

Copyright (c) 2023-2026, The Regents of the University of California, through Lawrence Berkeley National Laboratory and UChicago Argonne LLC through Argonne National Laboratory (subject to receipt of any required approvals from the U.S. Dept. of Energy). All rights reserved.

Support

To

• report potential problems with IBCDFO,
• propose a change, or
• request a new feature,

please check if a related Issue already exists before creating a new issue. For all other communication, please send an email to the POptUS development team at

• poptus@mcs.anl.gov

Documentation

User and Developer Guides are hosted on ReadTheDocs.

The inclusion of examples is pending.

Installation & Testing

Refer to the Getting Started section of the User Guide.

Contributing to IBCDFO

Contributions are welcome in a variety of forms; see Contributing in the Developer Guide.

Cite IBCDFO

@techreport{ibcdfo,
  author = {Jeffrey Larson and Matt Menickelly and Stefan M. Wild},
  title  = {Interpolation-Based Composite Derivative-Free Optimization},
  url    = {https://github.com/POptUS/IBCDFO},
  number = {Version 0.1.0},
  year   = {2026},
  doi    = {10.11578/dc.20240627.2}
}