PySofia is a python wrapper around the methods present in the C++ sofia-ml library. These include Stochastic Gradient Descent implementations of some ranking algorithms, notably RankSVM.

• cython >= 0.17 (previous versions will not work)
• numpy
• A C++ compiler (gcc will do)

You will not need to install sofia-ml since it is incuded in this distribution

$ pip install -U pysofia

pysofia.train_sgd

Trains a model using stochastic gradient descent. See docstring for more details.

pysofia.compat.RankSVM implements an estimator following the conventions used in scikit-learn.

Check out the latest version at github: https://github.com/fabianp/pysofia/

Apache License 2.0

PySofia is the work of Fabian Pedregosa. The sofia-ml library is written by D. Sculley.