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This is a Python wrapper around Naoaki Okazaki (chokkan)'sliblbfgs libraryof quasi-Newton optimization routines (limited memory BFGS and OWL-QN).

This package aims to provide a cleaner interface to the LBFGSalgorithm than is currently available inSciPy, and to provide theOWL-QN algorithm to Python users.

Part of theDedupe.io cloud service and open source toolset for de-duplicating and finding fuzzy matches in your data.

Type:

pip install pylbfgs

Type:

pip install "pip>=10"pip install -r requirements.txtpip install -e .

To run the test suite:

pytest tests

PyLBFGS was written by Lars Buitinck.

Alexis Mignon submitted a patch for error handling.