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        "author": "Lucas Maystre",
        "author_email": "lucas@maystre.ch",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 4 - Beta",
            "Intended Audience :: Science/Research",
            "License :: OSI Approved :: MIT License",
            "Programming Language :: Python :: 3",
            "Topic :: Scientific/Engineering :: Artificial Intelligence",
            "Topic :: Scientific/Engineering :: Mathematics"
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        "description": "choix\n=====\n\n|build-status| |coverage| |docs|\n\n``choix`` is a Python library that provides inference algorithms for models\nbased on Luce's choice axiom. These probabilistic models can be used to explain\nand predict outcomes of comparisons between items.\n\n- **Pairwise comparisons**: when the data consists of comparisons between two\n  items, the model variant is usually referred to as the *Bradley-Terry* model.\n  It is closely related to the Elo rating system used to rank chess players.\n- **Partial rankings**: when the data consists of rankings over (a subset of)\n  the items, the model variant is usually referred to as the *Plackett-Luce*\n  model.\n- **Top-1 lists**: another variation of the model arises when the data consists\n  of discrete choices, i.e., we observe the selection of one item out of a\n  subset of items.\n- **Choices in a network**: when the data consists of counts of the number of\n  visits to each node in a network, the model is known as the *Network Choice\n  Model*.\n\n``choix`` makes it easy to infer model parameters from these different types of\ndata, using a variety of algorithms:\n\n- Luce Spectral Ranking\n- Minorization-Maximization\n- Rank Centrality\n- Approximate Bayesian inference with expectation propagation\n\nGetting started\n---------------\n\nTo install the latest release directly from PyPI, simply type::\n\n    pip install choix\n\nTo get started, you might want to explore one of these notebooks:\n\n- `Introduction using pairwise-comparison data\n  <notebooks/intro-pairwise.ipynb>`_\n- `Case study: analyzing the GIFGIF dataset\n  <notebooks/gifgif-dataset.ipynb>`_\n- `Using ChoiceRank to understand traffic on a network\n  <notebooks/choicerank-tutorial.ipynb>`_\n- `Approximate Bayesian inference using EP\n  <notebooks/ep-example.ipynb>`_\n\nYou can also find more information on the `official documentation\n<http://choix.lum.li/en/latest/>`_. In particular, the `API reference\n<http://choix.lum.li/en/latest/api.html>`_ contains a good summary of the\nlibrary's features.\n\nReferences\n----------\n\n- Hossein Azari Soufiani, William Z. Chen, David C. Parkes, and Lirong Xia,\n  `Generalized Method-of-Moments for Rank Aggregation`_, NIPS 2013\n- Fran\u00e7ois Caron and Arnaud Doucet. `Efficient Bayesian Inference for\n  Generalized Bradley-Terry models`_. Journal of Computational and Graphical\n  Statistics, 21(1):174-196, 2012.\n- Wei Chu and Zoubin Ghahramani, `Extensions of Gaussian processes for ranking\\:\n  semi-supervised and active learning`_, NIPS 2005 Workshop on Learning to\n  Rank.\n- David R. Hunter. `MM algorithms for generalized Bradley-Terry models`_, The\n  Annals of Statistics 32(1):384-406, 2004.\n- Ravi Kumar, Andrew Tomkins, Sergei Vassilvitskii and Erik Vee, `Inverting a\n  Steady-State`_, WSDM 2015.\n- Lucas Maystre and Matthias Grossglauser, `Fast and Accurate Inference of\n  Plackett-Luce Models`_, NIPS, 2015.\n- Lucas Maystre and M. Grossglauser, `ChoiceRank\\: Identifying Preferences from\n  Node Traffic in Networks`_, ICML 2017.\n- Sahand Negahban, Sewoong Oh, and Devavrat Shah, `Iterative Ranking from\n  Pair-wise Comparison`_, NIPS 2012.\n\n\n.. _Generalized Method-of-Moments for Rank Aggregation:\n   https://papers.nips.cc/paper/4997-generalized-method-of-moments-for-rank-aggregation.pdf\n\n.. _Efficient Bayesian Inference for Generalized Bradley-Terry models:\n   https://hal.inria.fr/inria-00533638/document\n\n.. _Extensions of Gaussian processes for ranking\\: semi-supervised and active learning:\n   http://www.gatsby.ucl.ac.uk/~chuwei/paper/gprl.pdf\n\n.. _MM algorithms for generalized Bradley-Terry models:\n   http://sites.stat.psu.edu/~dhunter/papers/bt.pdf\n\n.. _Inverting a Steady-State:\n   http://theory.stanford.edu/~sergei/papers/wsdm15-cset.pdf\n\n.. _Fast and Accurate Inference of Plackett-Luce Models:\n   https://infoscience.epfl.ch/record/213486/files/fastinference.pdf\n\n.. _ChoiceRank\\: Identifying Preferences from Node Traffic in Networks:\n   https://infoscience.epfl.ch/record/229164/files/choicerank.pdf\n\n.. _Iterative Ranking from Pair-wise Comparison:\n   https://papers.nips.cc/paper/4701-iterative-ranking-from-pair-wise-comparisons.pdf\n\n.. |build-status| image:: https://travis-ci.org/lucasmaystre/choix.svg?branch=master\n   :alt: build status\n   :scale: 100%\n   :target: https://travis-ci.org/lucasmaystre/choix\n\n.. |coverage| image:: https://codecov.io/gh/lucasmaystre/choix/branch/master/graph/badge.svg\n   :alt: code coverage\n   :scale: 100%\n   :target: https://codecov.io/gh/lucasmaystre/choix\n\n.. |docs| image:: https://readthedocs.org/projects/choix/badge/?version=latest\n   :alt: documentation status\n   :scale: 100%\n   :target: http://choix.lum.li/en/latest/?badge=latest",
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