/// <summary>
/// Looks for optimal solution of a function
/// </summary>
/// <returns></returns>
/// <inheritdoc/>
public override Harmony <T> SearchForHarmony()
{
InitializeHarmonyMemory();
ImprovisationCount = 0;
ImprovisationCountWithTheSameBestValue = 0;
while (SearchingShouldContinue())
{
var worstHarmony = HarmonyMemory.WorstHarmony;
// Get parameters
var harmonyMemoryConsiderationRatio = ParameterProvider.HarmonyMemoryConsiderationRatio;
var pitchAdjustmentRatio = ParameterProvider.PitchAdjustmentRatio;
// Improvise harmony with the new parameters
var improvisedHarmony = HarmonyGenerator.ImproviseHarmony(harmonyMemoryConsiderationRatio, pitchAdjustmentRatio);
if (improvisedHarmony.IsBetterThan(worstHarmony) && !HarmonyMemory.Contains(improvisedHarmony))
{
HarmonyMemory.SwapWithWorstHarmony(improvisedHarmony);
}
// Update global pheromone using the best harmony
_antColonyOptimizer.UpdateGlobalPheromone(HarmonyMemory.BestHarmony);
// Get ant solutions
var antSolutions = _antColonyOptimizer.GetAntColonySolutions(HarmonyMemory.MaxCapacity);
// Merge ant solutions with improvised ones
MergeHarmonyMemoryWithAntSolutions(antSolutions);
// Save best solution
SaveBestHarmony(HarmonyMemory.BestHarmony);
ImprovisationCount++;
}
return(HarmonyMemory.BestHarmony);
}
/// <summary>
/// Looks for optimal solution of a function
/// </summary>
/// <returns></returns>
/// <inheritdoc/>
public override Harmony <T> SearchForHarmony()
{
InitializeHarmonyMemory();
ImprovisationCount = 0;
ImprovisationCountWithTheSameBestValue = 0;
while (SearchingShouldContinue())
{
if (ImprovisationCount > 0 && ImprovisationCount % RegroupRate == 0)
{
RegroupHarmonyMemories();
}
foreach (var subHarmonyMemory in _subHarmonyMemories)
{
// Set the right harmony memory
HarmonyGenerator.HarmonyMemory = subHarmonyMemory;
var harmonyMemoryConsiderationRatio = ParameterProvider.HarmonyMemoryConsiderationRatio;
var pitchAdjustmentRatio = ParameterProvider.PitchAdjustmentRatio;
var improvisedHarmony = HarmonyGenerator.ImproviseHarmony(harmonyMemoryConsiderationRatio, pitchAdjustmentRatio);
var worstHarmony = subHarmonyMemory.WorstHarmony;
if (improvisedHarmony.IsBetterThan(worstHarmony) && !subHarmonyMemory.Contains(improvisedHarmony))
{
subHarmonyMemory.SwapWithWorstHarmony(improvisedHarmony);
}
SaveBestHarmony(GetBestHarmony());
ImprovisationCount++;
}
}
return(GetBestHarmony());
}
