private void GenerateReferenceParetoFronts()
{
var problems = experiment.ExperimentProblems;
var referencePath = Path.Combine(experiment.ExperimentBaseDirectory, "ReferenceParetoFront");
if (!Directory.Exists(referencePath))
{
Directory.CreateDirectory(referencePath);
}
foreach (var problem in problems)
{
if (string.IsNullOrEmpty(problem.ParetoFront))
{
NonDominatedSolutionList solutionSet = new NonDominatedSolutionList();
string file = Path.Combine(referencePath, problem.Alias + ".pf");
MetricsUtil metrics = new MetricsUtil();
foreach (var algorithmDictionary in problem.AlgorithmDictionary)
{
foreach (var algorithm in algorithmDictionary.Value)
{
metrics.ReadNonDominatedSolutionSet(algorithm.Result.GetObjectives(), solutionSet);
}
}
solutionSet.PrintObjectivesToFile(file);
problem.ParetoFront = file;
}
}
}
/// <summary>
/// Reads a set of non dominated solutions from a file and store it in a
/// existing non dominated solution set
/// </summary>
/// <param name="path">The path of the file containing the data</param>
/// <param name="solutionSet">A solution set</param>
public void ReadNonDominatedSolutionSet(string path, NonDominatedSolutionList solutionSet)
{
try
{
/* Open the file */
using (StreamReader reader = new StreamReader(path))
{
string aux = reader.ReadLine();
while (aux != null)
{
string[] st = aux.Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
int i = 0;
Solution solution = new Solution(st.Length);
foreach (string s in st)
{
double value = JMetalCSharp.Utils.Utils.ParseDoubleInvariant(s);
solution.Objective[i] = value;
i++;
}
solutionSet.Add(solution);
aux = reader.ReadLine();
}
}
}
catch (Exception e)
{
Console.WriteLine("ReadNonDominatedSolutionSet: " + path);
Console.WriteLine(e.StackTrace);
}
}
/// <summary>
/// Reads a set of non dominated solutions from a file
/// </summary>
/// <param name="path">The path of the file containing the data</param>
/// <returns>A solution set</returns>
public SolutionSet ReadNonDominatedSolutionSet(string name)
{
var path = Path.GetFullPath("./Data/ParetoFronts/" + name);
try
{
SolutionSet solutionSet = new NonDominatedSolutionList();
using (StreamReader reader = new StreamReader(path))
{
string aux = reader.ReadLine();
while (aux != null)
{
string[] st = aux.Split(new char[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
int i = 0;
Solution solution = new Solution(st.Length);
foreach (string s in st)
{
double value = JMetalCSharp.Utils.Utils.ParseDoubleInvariant(s);
solution.Objective[i] = value;
i++;
}
solutionSet.Add(solution);
aux = reader.ReadLine();
}
}
return(solutionSet);
}
catch (Exception e)
{
Console.WriteLine("ReadNonDominatedSolutionSet: " + path);
Console.WriteLine(e.StackTrace);
}
return(null);
}
public void ReadNonDominatedSolutionSet(double[][] objectives, NonDominatedSolutionList solutionSet)
{
double[] solutionObjectives;
for (int i = 0, li = objectives.Length; i < li; i++)
{
solutionObjectives = objectives[i];
Solution solution = new Solution(solutionObjectives.Length);
solution.Objective = solutionObjectives;
solutionSet.Add(solution);
}
}