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CEML - Counterfactuals for Explaining Machine Learning models - A Python toolbox

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CEML

Counterfactuals for Explaining Machine Learning models

CEML is a Python toolbox for computing counterfactuals. Counterfactuals can be used to explain the predictions of machine learing models.

It supports many common machine learning frameworks:

  • scikit-learn (1.5.0)
  • PyTorch (2.0.1)
  • Keras & Tensorflow (2.13.1)

Furthermore, CEML is easy to use and can be extended very easily. See the following user guide for more information on how to use and extend CEML.

docs/_static/cf_illustration.png

Installation

Note: Python 3.8 is required!

Tested on Ubuntu -- note that some people reported problems with some dependencies on Windows!

PyPI

pip install ceml

Note: The package hosted on PyPI uses the cpu only. If you want to use the gpu, you have to install CEML manually - see next section.

Git

Download or clone the repository:

git clone https://github.com/andreArtelt/ceml.git
cd ceml

Install all requirements (listed in requirements.txt):

pip install -r requirements.txt

Note: If you want to use a gpu/tpu, you have to install the gpu version of jax, tensorflow and pytorch manually. Do not use pip install -r requirements.txt.

Install the toolbox itself:

pip install .

Quick example

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from sklearn.datasets import load_iris
from sklearn.model_selection import train_test_split
from sklearn.metrics import accuracy_score
from sklearn.tree import DecisionTreeClassifier

from ceml.sklearn import generate_counterfactual


if __name__ == "__main__":
    # Load data
    X, y = load_iris(return_X_y=True)
    X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.33, random_state=4242)

    # Whitelist of features - list of features we can change/use when computing a counterfactual
    features_whitelist = None   # We can use all features

    # Create and fit model
    model = DecisionTreeClassifier(max_depth=3)
    model.fit(X_train, y_train)

    # Select data point for explaining its prediction
    x = X_test[1,:]
    print("Prediction on x: {0}".format(model.predict([x])))

    # Compute counterfactual
    print("\nCompute counterfactual ....")
    print(generate_counterfactual(model, x, y_target=0, features_whitelist=features_whitelist))

Documentation

Documentation is available on readthedocs:https://ceml.readthedocs.io/en/latest/

License

MIT license - See LICENSE

How to cite?

You can cite CEML by using the following BibTeX entry:

@misc{ceml,
        author = {André Artelt},
        title = {CEML: Counterfactuals for Explaining Machine Learning models - A Python toolbox},
        year = {2019 - 2023},
        publisher = {GitHub},
        journal = {GitHub repository},
        howpublished = {\url{https://www.github.com/andreArtelt/ceml}}
    }

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