AiLibrary

1. Genetic Algorithm lib using Java
2. A* Algorithm lib using Java

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Genetic Algorithm lib using Java

Class Setting.java

Settings for Genetic Algorithm Optimization

Class OperatorOptions.java

Settings for Operator Options in Genetic Algorithm

Interface ChromosomeEvaluator.java

Use this interface and implement method

public abstract double evaluateFitness(Chromosome c);

define method evaluateFitness that returns double falue as the quality of Chromosome c

Class GeneticAlgorithm.java

Main Library Class for Genetic Algorithm System

Using Genetic Algorithm Library

	int nGen = 10;
	int maxG = 100;
	Settings settings = new Settings(nGen, maxG);
	OperatorOptions operations = new OperatorOptions();
	GeneticAlgorithm ga = new GeneticAlgorithm(settings, operations);
	Evaluator evaluator = new Evaluator();
	ga.optimize(evaluator);
	System.out.println(ga.getBestFitness());
	System.out.println(ga.getBestIndv());

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A* Algorithm lib using Java

Class AStar.java

Main Library Class for A* Algorithm System
generate shortest apth from node Start to Goal
input N-nodes [index node = 0-N]

Using A* Algorithm Library

Input :

• int N;
• number of nodes
• double[] heuristic[N]
• array size of n-nodes, heuristic value of each representated node to Goal
• int[][] nodeMap = new int[2][M]
• adjacent array with size of 2xM, represented M-edges from nodeMap[0][i] to nodeMap[1][i]
• double[] cost = new double[M]
• cost to cross each edge[i] from nodeMap[0][i] to nodeMap[1][i]

A* Algorithm Method :

	public int[] optimize(int start, int goal)
	public double getTotalCost(int[] path)

Using A* Algorithm Library

double[] heur = {0, 0.5, 5, 2, 4.5, 4, 5, 6, 7, 8, 10, 10.5};
int[][] nodeMap = {
	{11, 11, 11, 10, 10, 9, 9, 7, 8, 8, 6, 6, 5, 5, 2, 3, 3, 4, 1},
	{10, 8, 4, 9, 8, 7, 2, 6, 7, 5, 5, 3, 3, 4, 0, 0, 4, 1, 0}
	};
double[] cost = {5, 3, 15, 3, 3, 2, 8, 2, 2, 3, 1, 3, 2, 6, 6, 3, 2, 5, 1};
AStar astar = new AStar(heur, nodeMap, cost);
int start = 11;
int goal = 0;
int[] path = astar.optimize(start, goal);
double total = astar.getTotalCost(path);
System.out.println("total = " + total);