protected override void EvaluateMove()
{
PotvinCustomerRelocationMove move = CustomerRelocationMoveParameter.ActualValue;
PotvinEncoding newSolution = CustomerRelocationMoveParameter.ActualValue.Individual.Clone() as PotvinEncoding;
PotvinCustomerRelocationMoveMaker.Apply(newSolution, move, ProblemInstance);
UpdateEvaluation(newSolution);
//Apply memory, only if move is worse
if (MoveQualityParameter.ActualValue.Value >= QualityParameter.ActualValue.Value)
{
VariableCollection memory = MemoriesParameter.ActualValue;
string key = AdditionFrequencyMemoryKeyParameter.Value.Value;
if (memory != null && memory.ContainsKey(key))
{
ItemDictionary <PotvinCustomerRelocationMoveAttribute, IntValue> additionFrequency =
memory[key].Value as ItemDictionary <PotvinCustomerRelocationMoveAttribute, IntValue>;
PotvinCustomerRelocationMoveAttribute attr = new PotvinCustomerRelocationMoveAttribute(0, move.Tour, move.City);
if (additionFrequency.ContainsKey(attr))
{
int frequency = additionFrequency[attr].Value;
double quality = MoveQualityParameter.ActualValue.Value;
MoveQualityParameter.ActualValue.Value +=
LambdaParameter.Value.Value * quality * frequency;
}
}
}
}
public static void SetVariable(string name, Variable value)
{
if (_variables.ContainsKey(name))
{
_variables[name] = value;
}
else
{
_variables.Add(name, value);
}
}
public void SetVariable(string name, Variable value)
{
if (_variables.ContainsKey(name))
{
_variables[name] = value;
}
else
{
value.OnValueChange += DataChange;
_variables.Add(name, value);
}
}
public static void Map(ref ParametersCollection parameters, VariableCollection variables)
{
if (parameters is null)
{
throw new ArgumentNullException(nameof(parameters));
}
if (variables is null)
{
throw new ArgumentNullException(nameof(variables));
}
foreach (var parameter in parameters)
{
if (variables.ContainsKey(parameter.Name))
{
variables.Remove(parameter.Name);
}
variables.Add(parameter.Name, parameter.Value.Infer());
}
}
protected override void PerformMove()
{
PotvinCustomerRelocationMove move = CustomerRelocationMoveParameter.ActualValue;
PotvinEncoding newSolution = move.Individual.Clone() as PotvinEncoding;
Apply(newSolution, move, ProblemInstance);
newSolution.Repair();
VRPToursParameter.ActualValue = newSolution;
//reset move quality
VRPEvaluation eval = ProblemInstance.Evaluate(newSolution);
MoveQualityParameter.ActualValue.Value = eval.Quality;
//update memory
VariableCollection memory = MemoriesParameter.ActualValue;
string key = AdditionFrequencyMemoryKeyParameter.Value.Value;
if (memory != null)
{
if (!memory.ContainsKey(key))
{
memory.Add(new Variable(key,
new ItemDictionary <PotvinCustomerRelocationMoveAttribute, IntValue>()));
}
ItemDictionary <PotvinCustomerRelocationMoveAttribute, IntValue> additionFrequency =
memory[key].Value as ItemDictionary <PotvinCustomerRelocationMoveAttribute, IntValue>;
PotvinCustomerRelocationMoveAttribute attr = new PotvinCustomerRelocationMoveAttribute(0, move.Tour, move.City);
if (!additionFrequency.ContainsKey(attr))
{
additionFrequency[attr] = new IntValue(0);
}
additionFrequency[attr].Value++;
}
}
/// <summary>Determines whether the <see cref="T:System.Collections.Generic.IDictionary`2" /> contains an element with the specified key.</summary>
/// <param name="key">The key to locate in the <see cref="T:System.Collections.Generic.IDictionary`2" />.</param>
/// <returns>
/// <see langword="true" /> if the <see cref="T:System.Collections.Generic.IDictionary`2" /> contains an element with the key; otherwise, <see langword="false" />.</returns>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="key" /> is <see langword="null" />.</exception>
public bool ContainsKey(string name)
{
return(_collection.ContainsKey(name));
}
public bool Contains(string variableName)
{
Contract.Requires <ArgumentException>(!String.IsNullOrEmpty(variableName));
return(variables.ContainsKey(variableName));
}
