ecspy

A framework for creating evolutionary computations in Python.

ECsPy (Evolutionary Computations in Python) is a free, open source framework for creating evolutionary computations in Python. Additionally, ECsPy provides an easy-to-use canonical genetic algorithm (GA), evolution strategy (ES), estimation of distribution algorithm (EDA), differential evolution algorithm (DEA), and particle swarm optimizer (PSO) for users who don’t need much customization.

Requirements

Requires at least Python 2.6 (not compatible with Python 3+).

Numpy and Matplotlib are required if the line plot observer is used.

Parallel Python (pp) is required if parallel_evaluation_pp is used.

License

This package is distributed under the GNU General Public License version 3.0 (GPLv3). This license can be found online at http://www.opensource.org/licenses/gpl-3.0.html.

Package Structure

ECsPy consists of the following modules:

analysis.py – provides tools for analyzing the results of an EC

archivers.py – defines useful archiving methods, particularly for EMO algorithms

benchmarks.py – defines several single- and multi-objective benchmark optimization problems

ec.py – provides the basic framework for an EvolutionaryComputation and specific ECs

emo.py – provides the Pareto class for multiobjective optimization along with specific EMOs (e.g. NSGA-II)

evaluators.py – defines useful evaluation schemes, such as parallel evaluation

migrators.py – defines a few built-in migrators, including migration via network and migration among concurrent processes

observers.py – defines a few built-in observers, including screen, file, and plotting observers

replacers.py – defines standard replacement schemes such as generational and steady-state replacement

selectors.py – defines standard selectors (e.g., tournament)

swarm.py – provides a basic particle swarm optimizer

terminators.py – defines standard terminators (e.g., exceeding a maximum number of generations)

topologies.py – defines standard topologies for particle swarms

variators.py – defines standard variators (crossover and mutation schemes such as n-point crossover)