Changeset 5293 for branches/HeuristicLab.MetaOptimization/HeuristicLab.Problems.MetaOptimization/3.3/Encoding

Timestamp:

01/14/11 00:41:58 (14 years ago)

Author:

cneumuel

Message:

#1215

• added NormalCrossover operators
• renamed MedianQualityAnalyzer to ReferenceQualityAnalyzer

File:

• branches/HeuristicLab.MetaOptimization/HeuristicLab.Problems.MetaOptimization/3.3/Encoding/Crossovers/ParameterConfigurationCrossover.cs (modified) (3 diffs)

branches/HeuristicLab.MetaOptimization/HeuristicLab.Problems.MetaOptimization/3.3/Encoding/Crossovers/ParameterConfigurationCrossover.cs

@@ -38 +38 @@
     }
 
+    /// <summary>
+    /// Whether the problem is a maximization or minimization problem.
+    /// </summary>
+    public ValueLookupParameter<BoolValue> MaximizationParameter {
+      get { return (ValueLookupParameter<BoolValue>)Parameters["Maximization"]; }
+    }
+
+    /// <summary>
+    /// The quality of the parents.
+    /// </summary>
+    public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
+      get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
+    }
+
     [StorableConstructor]
     protected ParameterConfigurationCrossover(bool deserializing) : base(deserializing) { }
@@ -46 +60 @@
       Parameters.Add(new ScopeTreeLookupParameter<ParameterConfigurationTree>("Parents", "The parent vectors which should be crossed."));
       Parameters.Add(new LookupParameter<ParameterConfigurationTree>("Child", "The child vector resulting from the crossover."));
-
+      Parameters.Add(new ValueLookupParameter<BoolValue>("Maximization", "Whether the problem is a maximization problem or not."));
+      Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The quality values of the parents."));
       Parameters.Add(new ValueLookupParameter<IIntValueCrossover>(MetaOptimizationProblem.IntValueCrossoverParameterName, ""));
       Parameters.Add(new ValueLookupParameter<IDoubleValueCrossover>(MetaOptimizationProblem.DoubleValueCrossoverParameterName, ""));
@@ -55 +70 @@
 
     public override IOperation Apply() {
-      ParameterConfigurationTree child1 = (ParameterConfigurationTree)ParentsParameter.ActualValue[0].Clone();
-      ParameterConfigurationTree child2 = (ParameterConfigurationTree)ParentsParameter.ActualValue[1];
+      if (MaximizationParameter.ActualValue == null) throw new InvalidOperationException("HeuristicCrossover: Parameter " + MaximizationParameter.ActualName + " could not be found.");
+      if (QualityParameter.ActualValue == null || QualityParameter.ActualValue.Length != 2) throw new InvalidOperationException("ParameterConfigurationCrossover: Parameter " + QualityParameter.ActualName + " could not be found, or not in the same quantity as there are parents.");
+      ItemArray<DoubleValue> qualities = QualityParameter.ActualValue;
+      bool maximization = MaximizationParameter.ActualValue.Value;
+
+      ParameterConfigurationTree child1; 
+      ParameterConfigurationTree child2; 
+
+      if (maximization && qualities[0].Value >= qualities[1].Value || !maximization && qualities[0].Value <= qualities[1].Value) {
+        child1 = (ParameterConfigurationTree)ParentsParameter.ActualValue[0].Clone();
+        child2 = (ParameterConfigurationTree)ParentsParameter.ActualValue[1];
+      } else {
+        child1 = (ParameterConfigurationTree)ParentsParameter.ActualValue[1].Clone();
+        child2 = (ParameterConfigurationTree)ParentsParameter.ActualValue[0];
+      }
 
       child1.Cross(RandomParameter.ActualValue, child2, Cross, IntValueCrossoverParameter.ActualValue, DoubleValueCrossoverParameter.ActualValue);