Changeset 7514 for branches/HeuristicLab.EvolutionaryTracking/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Crossovers/TracingSymbolicExpressionTreeCrossover.cs

Timestamp:

02/24/12 10:58:22 (12 years ago)

Author:

bburlacu

Message:

#1772: Merged latest trunk changes to SymbolicExpressionTreeEncoding. Deleted unneeded obj folder.

Location:

branches/HeuristicLab.EvolutionaryTracking/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding

Files:

• . (modified) (2 props)
• 3.4 (modified) (1 prop)
• 3.4/Crossovers/TracingSymbolicExpressionTreeCrossover.cs (modified) (3 diffs)

branches/HeuristicLab.EvolutionaryTracking/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Crossovers/TracingSymbolicExpressionTreeCrossover.cs

@@ -27 +27 @@
 using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
 
-using TreeCacheType = HeuristicLab.Core.ItemList<HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.ISymbolicExpressionTree>;
-using CloneMapType = HeuristicLab.Core.ItemDictionary<HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.ISymbolicExpressionTree,
-                                                      HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.ISymbolicExpressionTree>;
-using TraceMapType = HeuristicLab.Core.ItemDictionary<HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.ISymbolicExpressionTree,
-                                                      HeuristicLab.Core.IItemArray<HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.ISymbolicExpressionTree>>;
+using CloneMapType = HeuristicLab.Core.ItemDictionary<HeuristicLab.Core.IItem, HeuristicLab.Core.IItem>;
+using TraceMapType = HeuristicLab.Core.ItemDictionary<HeuristicLab.Core.IItem, HeuristicLab.Core.IItemList<HeuristicLab.Core.IItem>>;
 
 namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding {
@@ -80 +77 @@
       Parameters.Add(new ScopeTreeLookupParameter<ISymbolicExpressionTree>(ParentsParameterName, "The parent symbolic expression trees which should be crossed."));
       Parameters.Add(new LookupParameter<ISymbolicExpressionTree>(ChildParameterName, "The child symbolic expression tree resulting from the crossover."));
-      Parameters.Add(new LookupParameter<ItemDictionary<ISymbolicExpressionTree, ISymbolicExpressionTree>>(GlobalCloneMapParameterName, "A global map keeping track of trees and their clones (made during selection)."));
-      Parameters.Add(new LookupParameter<ItemDictionary<ISymbolicExpressionTree, IItemArray<ISymbolicExpressionTree>>>(GlobalTraceMapParameterName, "A global cache containing tracing info."));
+      Parameters.Add(new LookupParameter<CloneMapType>(GlobalCloneMapParameterName, "A global map keeping track of trees and their clones (made during selection)."));
+      Parameters.Add(new LookupParameter<TraceMapType>(GlobalTraceMapParameterName, "A global cache containing tracing info."));
     }
 
@@ -91 +88 @@
         var gScope = ExecutionContext.Scope;
         while (gScope.Parent != null) gScope = gScope.Parent;
-        gScope.Variables.Add(new Variable(GlobalTraceMapParameterName, new ItemDictionary<ISymbolicExpressionTree, IItemArray<ISymbolicExpressionTree>>()));
+        gScope.Variables.Add(new Variable(GlobalTraceMapParameterName, new TraceMapType()));
       }
-      var originalParents = new ItemArray<ISymbolicExpressionTree>(Parents.Select(x => GlobalCloneMap[x]));
-      // prevent incestuous crossover (an individual mating with itself)
-      if (originalParents[0] == originalParents[1]) {
-        Child = Parents[0];
-        return base.Apply();
-      }
+      var originalParents = new ItemList<IItem>(Parents.Select(x => GlobalCloneMap[x]));
       ISymbolicExpressionTree result = Cross(Random, Parents[0], Parents[1]);
-
       Child = result;
       GlobalTraceMap.Add(Child, originalParents);