public override TSolution Solve(NullParameters parameters, TSolution initial, List <Func <TSolution, Exploration, Random, TSolution> > neighborhoods, Exploration expCondition, Func <TSolution, double> cost, Random rdObj)
{
ResetProgress();
timer.Start();
TSolution current = (TSolution)initial.Clone();
double currentCost = cost(current);
int iteration = 0;
OnIteration(new IterationEventArgs <TSolution>(current));
for (int i = 0; i < neighborhoods.Count;)
{
TSolution neighborhoodSolution = neighborhoods[i](current, expCondition, rdObj);
double neighborhoodCost = cost(neighborhoodSolution);
if (neighborhoodCost < currentCost)
{
current = (TSolution)neighborhoodSolution.Clone();
currentCost = neighborhoodCost;
i = 0;
}
else
{
i++;
}
iteration++;
OnIteration(new IterationEventArgs <TSolution>(current, iteration, timer.Elapsed.TotalSeconds));
}
timer.Stop();
return(current);
}
public override TSolution Solve(NullParameters parameters, TSolution initial, List <Func <TSolution, Exploration, Random, TSolution> > neighborhoods, Exploration expCondition, Func <TSolution, double> cost, Random rdObj)
{
ResetProgress();
TSolution current = (TSolution)initial.Clone();
double currentCost = cost(current);
int iteration = 0;
OnIteration(new IterationEventArgs <TSolution>(current));
timer.Start();
while (true)
{
TSolution neighborhoodSolution = SelectRandomNeigborStrategy(neighborhoods, rdObj)(current, expCondition, rdObj);
double neighborhoodSolutionCost = cost(neighborhoodSolution);
if (neighborhoodSolutionCost < currentCost)
{
currentCost = neighborhoodSolutionCost;
current = (TSolution)neighborhoodSolution.Clone();
iteration++;
OnIteration(new IterationEventArgs <TSolution>(current, iteration, timer.Elapsed.TotalSeconds));
}
else
{
break;
}
}
timer.Stop();
return(current);
}
public override Verb CreateVerb(string[] tokens)
{
var tokens1Length = tokens[1].Length;
Color(position, tokens1Length, Whitespaces);
var index = position + tokens1Length;
Block block;
Parameters parameters;
var returnValue = true;
if (blockParser.Scan(source, index))
{
if (blockParser.Value is Lambda lambda)
{
block = lambda.Block;
parameters = lambda.Parameters;
}
else
{
block = (Block)blockParser.Value;
parameters = new NullParameters();
}
index = blockParser.Result.Position;
}
else
{
return(null);
}
if (index < source.Length && source.Substring(index, 1) == ".")
{
index++;
returnValue = false;
}
overridePosition = index;
Replacement = new BlockReplacement(block, parameters, returnValue);
return(new NullOp());
}
public override TSolution Solve(NullParameters parameters, TSolution initial, List <Func <TSolution, Exploration, Random, TSolution> > neighborhoods, Exploration expCondition, Func <TSolution, double> cost, Random rdObj)
{
ResetProgress();
timer.Start();
TSolution current = (TSolution)initial.Clone();
double currentCost = cost(current);
OnIteration(new IterationEventArgs <TSolution>(current));
int iteration = 0;
List <Func <TSolution, Exploration, Random, TSolution> > availables = new List <Func <TSolution, Exploration, Random, TSolution> >();
availables.AddRange(neighborhoods);
while (availables.Count > 0)
{
int neighborIndex = rdObj.Next(availables.Count);
TSolution neighborhoodSolution = availables[neighborIndex](current, expCondition, rdObj);
double neighborhoodCost = cost(neighborhoodSolution);
if (neighborhoodCost < currentCost)
{
current = (TSolution)neighborhoodSolution.Clone();
currentCost = neighborhoodCost;
availables.Clear();
availables.AddRange(neighborhoods);
}
else
{
availables.RemoveAt(neighborIndex);
}
iteration++;
OnIteration(new IterationEventArgs <TSolution>(current, iteration, timer.Elapsed.TotalSeconds));
}
timer.Stop();
return(current);
}
