Javolver

Javolver is a simple yet powerful genetic algorithm system in Java.

The library is designed to be extremely simple to set up and run. To get strted, create a derived class from the Individual class, and implement three functions: clone() toString(); calculateScore();

An object of Javolver is then created and passed in the user's derived type, and then the fun can begin.

Documentation Java docs for the library are available here

Simple Example

    /**
	 * Example testing the CWord class.
	 * Individuals of type CWord are scored by how well they spell
	 * out a string compared to the supplied target word.
	 */
	public static void testWord() {

		int populationSize = 100;
		String targetWord = "HELLOWORLD";
		Javolver testEvolver = new Javolver(new CWord(targetWord), populationSize);
		
		// Configure the engine (Not required).
		testEvolver.setKeepBestIndividualAlive(false);
		testEvolver.setMutationCount(1);
		testEvolver.setMutationAmount(1.0/20.0);
		testEvolver.setSelectionType(SELECTION_TYPE.tournament);
		testEvolver.setSelectionRange(0.25);
		testEvolver.setDiversityAmount(1.0);
		
		// Perform a few iterations of evolution.
		for (int j = 0; j < 30; j++) {
			
			// Call the evolver class to perform one evolution step.
			testEvolver.doOneCycle();
			
			// Print output every so often.
			System.out.println("Iteration " + j + "  " + testEvolver.report());
		}

		System.out.print("END ");
	}

There are a few tests included in the project, a simulation that evolves trees, one that packs arbitrarily sized circles into a set area and a simple word finding algorithm.