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pymoo

Multi-Objective Optimization in Python

  • 0.6.1.3
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.. |python| image:: https://img.shields.io/badge/python-3.10-blue.svg :alt: python 3.10

.. |license| image:: https://img.shields.io/badge/license-apache-orange.svg :alt: license apache :target: https://www.apache.org/licenses/LICENSE-2.0

.. |logo| image:: https://github.com/anyoptimization/pymoo-data/blob/main/logo.png?raw=true :target: https://pymoo.org :alt: pymoo

.. |animation| image:: https://github.com/anyoptimization/pymoo-data/blob/main/animation.gif?raw=true :target: https://pymoo.org :alt: pymoo

.. _Github: https://github.com/anyoptimization/pymoo .. _Documentation: https://www.pymoo.org/ .. _Paper: https://ieeexplore.ieee.org/document/9078759

|python| |license|

|logo|

Documentation_ / Paper_ / Installation_ / Usage_ / Citation_ / Contact_

pymoo: Multi-objective Optimization in Python

Our open-source framework pymoo offers state of the art single- and multi-objective algorithms and many more features related to multi-objective optimization such as visualization and decision making.

.. _Installation:

Installation


First, make sure you have a Python 3 environment installed. We recommend miniconda3 or anaconda3.

The official release is always available at PyPi:

.. code:: bash

pip install -U pymoo

For the current developer version:

.. code:: bash

git clone https://github.com/anyoptimization/pymoo
cd pymoo
pip install .

Since for speedup, some of the modules are also available compiled, you can double-check if the compilation worked. When executing the command, be sure not already being in the local pymoo directory because otherwise not the in site-packages installed version will be used.

.. code:: bash

python -c "from pymoo.util.function_loader import is_compiled;print('Compiled Extensions: ', is_compiled())"

.. _Usage:

Usage


We refer here to our documentation for all the details. However, for instance, executing NSGA2:

.. code:: python

from pymoo.algorithms.moo.nsga2 import NSGA2
from pymoo.problems import get_problem
from pymoo.optimize import minimize
from pymoo.visualization.scatter import Scatter

problem = get_problem("zdt1")

algorithm = NSGA2(pop_size=100)

res = minimize(problem,
               algorithm,
               ('n_gen', 200),
               seed=1,
               verbose=True)

plot = Scatter()
plot.add(problem.pareto_front(), plot_type="line", color="black", alpha=0.7)
plot.add(res.F, color="red")
plot.show()

A representative run of NSGA2 looks as follows:

|animation|

.. _Citation:

Citation


If you have used our framework for research purposes, you can cite our publication by:

| J. Blank and K. Deb, pymoo: Multi-Objective Optimization in Python, in IEEE Access, vol. 8, pp. 89497-89509, 2020, doi: 10.1109/ACCESS.2020.2990567 <https://ieeexplore.ieee.org/document/9078759>_ | | BibTex:

::

@ARTICLE{pymoo,
    author={J. {Blank} and K. {Deb}},
    journal={IEEE Access},
    title={pymoo: Multi-Objective Optimization in Python},
    year={2020},
    volume={8},
    number={},
    pages={89497-89509},
}

.. _Contact:

Contact


Feel free to contact me if you have any questions:

| Julian Blank <http://julianblank.com>_ (blankjul [at] msu.edu) | Michigan State University | Computational Optimization and Innovation Laboratory (COIN) | East Lansing, MI 48824, USA

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