Changeset 3510

Timestamp:

04/23/10 14:21:09 (14 years ago)

Author:

abeham

Message:

Added a parameter to set the amount of selected parents #839, #976

Location:

trunk/sources/HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm/3.3

Files:

• OffspringSelectionGeneticAlgorithm.cs (modified) (5 diffs)
• SASEGASA.cs (modified) (4 diffs)

trunk/sources/HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm/3.3/OffspringSelectionGeneticAlgorithm.cs

@@ -98 +98 @@
       get { return (ValueLookupParameter<BoolValue>)Parameters["OffspringSelectionBeforeMutation"]; }
     }
+    private ValueLookupParameter<IntValue> SelectedParentsParameter {
+      get { return (ValueLookupParameter<IntValue>)Parameters["SelectedParents"]; }
+    }
     #endregion
 
@@ -137 +140 @@
       set { MaximumGenerationsParameter.Value = value; }
     }
-    private DoubleValue SuccessRatio {
+    public DoubleValue SuccessRatio {
       get { return SuccessRatioParameter.Value; }
       set { SuccessRatioParameter.Value = value; }
     }
-    private DoubleValue ComparisonFactorLowerBound {
+    public DoubleValue ComparisonFactorLowerBound {
       get { return ComparisonFactorLowerBoundParameter.Value; }
       set { ComparisonFactorLowerBoundParameter.Value = value; }
     }
-    private DoubleValue ComparisonFactorUpperBound {
+    public DoubleValue ComparisonFactorUpperBound {
       get { return ComparisonFactorUpperBoundParameter.Value; }
       set { ComparisonFactorUpperBoundParameter.Value = value; }
     }
-    private IDiscreteDoubleValueModifier ComparisonFactorModifier {
+    public IDiscreteDoubleValueModifier ComparisonFactorModifier {
       get { return ComparisonFactorModifierParameter.Value; }
       set { ComparisonFactorModifierParameter.Value = value; }
     }
-    private DoubleValue MaximumSelectionPressure {
+    public DoubleValue MaximumSelectionPressure {
       get { return MaximumSelectionPressureParameter.Value; }
       set { MaximumSelectionPressureParameter.Value = value; }
     }
-    private BoolValue OffspringSelectionBeforeMutation {
+    public BoolValue OffspringSelectionBeforeMutation {
       get { return OffspringSelectionBeforeMutationParameter.Value; }
       set { OffspringSelectionBeforeMutationParameter.Value = value; }
+    }
+    public IntValue SelectedParents {
+      get { return SelectedParentsParameter.Value; }
+      set { SelectedParentsParameter.Value = value; }
     }
     private RandomCreator RandomCreator {
@@ -196 +203 @@
       Parameters.Add(new ValueLookupParameter<DoubleValue>("MaximumSelectionPressure", "The maximum selection pressure that terminates the algorithm.", new DoubleValue(100)));
       Parameters.Add(new ValueLookupParameter<BoolValue>("OffspringSelectionBeforeMutation", "True if the offspring selection step should be applied before mutation, false if it should be applied after mutation.", new BoolValue(false)));
+      Parameters.Add(new ValueLookupParameter<IntValue>("SelectedParents", "Should be about 2 * PopulationSize, for large problems use a smaller value to decrease memory footprint.", new IntValue(200)));
 
       RandomCreator randomCreator = new RandomCreator();
@@ -316 +324 @@
       }
     }
-
     private void ParameterizeSolutionsCreator() {
       SolutionsCreator.EvaluatorParameter.ActualName = Problem.EvaluatorParameter.Name;
@@ -347 +354 @@
       foreach (ISelector selector in Selectors) {
         selector.CopySelected = new BoolValue(true);
-        selector.NumberOfSelectedSubScopesParameter.Value = new IntValue(2 * (PopulationSizeParameter.Value.Value - ElitesParameter.Value.Value));
+        selector.NumberOfSelectedSubScopesParameter.Value = null;
+        selector.NumberOfSelectedSubScopesParameter.ActualName = SelectedParentsParameter.Name;
         ParameterizeStochasticOperator(selector);
       }

trunk/sources/HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm/3.3/SASEGASA.cs

@@ -109 +109 @@
       get { return (ValueLookupParameter<BoolValue>)Parameters["OffspringSelectionBeforeMutation"]; }
     }
+    private ValueLookupParameter<IntValue> SelectedParentsParameter {
+      get { return (ValueLookupParameter<IntValue>)Parameters["SelectedParents"]; }
+    }
     #endregion
 
@@ -183 +186 @@
       get { return OffspringSelectionBeforeMutationParameter.Value; }
       set { OffspringSelectionBeforeMutationParameter.Value = value; }
+    }
+    public IntValue SelectedParents {
+      get { return SelectedParentsParameter.Value; }
+      set { SelectedParentsParameter.Value = value; }
     }
     private List<ISelector> selectors;
@@ -225 +232 @@
       Parameters.Add(new ValueLookupParameter<DoubleValue>("FinalMaximumSelectionPressure", "The maximum selection pressure used when there is only one village left.", new DoubleValue(100)));
       Parameters.Add(new ValueLookupParameter<BoolValue>("OffspringSelectionBeforeMutation", "True if the offspring selection step should be applied before mutation, false if it should be applied after mutation.", new BoolValue(false)));
+      Parameters.Add(new ValueLookupParameter<IntValue>("SelectedParents", "Should be about 2 * PopulationSize, for large problems use a smaller value to decrease memory footprint.", new IntValue(200)));
 
       RandomCreator randomCreator = new RandomCreator();
@@ -417 +425 @@
       foreach (ISelector selector in Selectors) {
         selector.CopySelected = new BoolValue(true);
-        selector.NumberOfSelectedSubScopesParameter.Value = new IntValue(2 * (PopulationSize.Value - Elites.Value));
+        selector.NumberOfSelectedSubScopesParameter.Value = null;
+        selector.NumberOfSelectedSubScopesParameter.ActualName = SelectedParentsParameter.Name;
         ParameterizeStochasticOperator(selector);
       }