This week we released the latest version of librec-auto, a tool for automating batch-style recommender systems experiments. The GitHub repository is (https://github.com/that-recsys-lab/librec-auto). See also the documentation.

Among the new features available in this version are:

• Fairness-aware recommendation support: Version 0.2 has a variety of features to support experimentation with fairness in recommendation including fairness metrics and re-ranker support.
• Bayesian black-box optimization: This release contains a preliminary implementation of black-box parameter optimization for hyperparameters using the hyperopt library.
• Setup wizard: A simple tool to help create new experimental studies, working from a data file supplied by the user.
• Saved split files: Cross-validation splits are now saved for debugging, reference and for the computation of statistics over training or test sets.
• Enhanced support for re-ranking: librec-auto has a number of built-in re-ranking algorithms for fairness-aware and diversity-aware recommendation, plus support for custom re-rankers.
• Python-side metrics: LibRec has a substantial library of recommendation metrics. However, it is now possible for experiments to implement their own metrics in Python and integrate them with recommendation experiments.

librec-auto can be installed using pip:

pip install librec-auto

You can also clone the source repository:

git clone https://github.com/that-recsys-lab/librec-auto.git
cd librec-auto
python setup.py install