Changeset 12378 for branches/GBT/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Analyzers/SymbolicDataAnalysisSingleObjectivePruningAnalyzer.cs

Timestamp:

05/04/15 13:08:49 (10 years ago)

Author:

gkronber

Message:

Merged revision(s) 12333-12365 from trunk/sources:
#2373: Corrected typo in RandomBinaryVectorCreator by implementing an after-deserialization-hook.

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#2359: Refactored pruning operators and analyzers.

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#2359: Removed commented code from pruning analyzer.

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#2378: Vertex.cs: Fixed bug in Label setter.
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#2359: The changes in r12358 look fine to me. Added total number of pruned nodes in the analyzer's data table. Removed unused parameter names in the SymbolicDataAnalysisSingleObjectivePruningAnalyzer.
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#2345: Fixed x-axis maximum in error characteristics curve.

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Location:

branches/GBT

Files:

• . (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Analyzers/SymbolicDataAnalysisSingleObjectivePruningAnalyzer.cs (modified) (10 diffs)

branches/GBT/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Analyzers/SymbolicDataAnalysisSingleObjectivePruningAnalyzer.cs

@@ -45 +45 @@
     private const string TotalNumberOfPrunedSubtreesParameterName = "Number of pruned subtrees";
     private const string TotalNumberOfPrunedTreesParameterName = "Number of pruned trees";
+    private const string TotalNumberOfPrunedNodesParameterName = "Number of pruned nodes";
     private const string RandomParameterName = "Random";
-    private const string PruneOnlyZeroImpactNodesParameterName = "PruneOnlyZeroImpactNodes";
-    private const string NodeImpactThresholdParameterName = "ImpactThreshold";
-    private const string PruningOperatorParameterName = "PruningOperator";
     private const string ResultsParameterName = "Results";
     private const string PopulationSizeParameterName = "PopulationSize";
@@ -54 +52 @@
 
     #region private members
+    private DataReducer prunedNodesReducer;
     private DataReducer prunedSubtreesReducer;
     private DataReducer prunedTreesReducer;
@@ -61 +60 @@
 
     #region parameter properties
-    public IValueParameter<SymbolicDataAnalysisExpressionPruningOperator> PruningOperatorParameter {
-      get { return (IValueParameter<SymbolicDataAnalysisExpressionPruningOperator>)Parameters[PruningOperatorParameterName]; }
-    }
-    public IFixedValueParameter<BoolValue> PruneOnlyZeroImpactNodesParameter {
-      get { return (IFixedValueParameter<BoolValue>)Parameters[PruneOnlyZeroImpactNodesParameterName]; }
-    }
-    public IFixedValueParameter<DoubleValue> NodeImpactThresholdParameter {
-      get { return (IFixedValueParameter<DoubleValue>)Parameters[NodeImpactThresholdParameterName]; }
-    }
     public ILookupParameter<IRandom> RandomParameter {
       get { return (ILookupParameter<IRandom>)Parameters[RandomParameterName]; }
@@ -91 +81 @@
 
     #region properties
-    protected SymbolicDataAnalysisExpressionPruningOperator PruningOperator { get { return PruningOperatorParameter.Value; } }
+    protected abstract SymbolicDataAnalysisExpressionPruningOperator PruningOperator { get; }
     protected int UpdateInterval { get { return UpdateIntervalParameter.Value.Value; } }
 
@@ -112 +102 @@
       get { return PruningProbabilityParameter.Value.Value; }
       set { PruningProbabilityParameter.Value.Value = value; }
-    }
-
-    protected bool PruneOnlyZeroImpactNodes {
-      get { return PruneOnlyZeroImpactNodesParameter.Value.Value; }
-      set { PruneOnlyZeroImpactNodesParameter.Value.Value = value; }
-    }
-    protected double NodeImpactThreshold {
-      get { return NodeImpactThresholdParameter.Value.Value; }
-      set { NodeImpactThresholdParameter.Value.Value = value; }
     }
     #endregion
@@ -140 +121 @@
     protected SymbolicDataAnalysisSingleObjectivePruningAnalyzer(SymbolicDataAnalysisSingleObjectivePruningAnalyzer original, Cloner cloner)
       : base(original, cloner) {
+      if (original.prunedNodesReducer != null)
+        this.prunedNodesReducer = (DataReducer)original.prunedNodesReducer.Clone();
       if (original.prunedSubtreesReducer != null)
         this.prunedSubtreesReducer = (DataReducer)original.prunedSubtreesReducer.Clone();
@@ -197 +180 @@
       Parameters.Add(new LookupParameter<IRandom>(RandomParameterName, "The random number generator."));
       Parameters.Add(new LookupParameter<IDataAnalysisProblemData>(ProblemDataParameterName, "The problem data."));
-      Parameters.Add(new FixedValueParameter<DoubleValue>(NodeImpactThresholdParameterName, "The impact threshold  below which an individual should be pruned.", new DoubleValue(0.0)));
-      Parameters.Add(new FixedValueParameter<BoolValue>(PruneOnlyZeroImpactNodesParameterName, "Switch to determine of only zero impact individuals should be pruned.", new BoolValue(false)));
       Parameters.Add(new LookupParameter<IntValue>(PopulationSizeParameterName, "The population of individuals."));
       #endregion
@@ -250 +231 @@
       UpdateCounter = 0;
 
-      if (prunedSubtreesReducer == null || prunedTreesReducer == null || valuesCollector == null || resultsCollector == null) { InitializeOperators(); }
+      if (prunedNodesReducer == null || prunedSubtreesReducer == null || prunedTreesReducer == null || valuesCollector == null || resultsCollector == null) { InitializeOperators(); }
 
       var prune = CreatePruningOperation();
+      var reducePrunedNodes = ExecutionContext.CreateChildOperation(prunedNodesReducer);
       var reducePrunedSubtrees = ExecutionContext.CreateChildOperation(prunedSubtreesReducer);
       var reducePrunedTrees = ExecutionContext.CreateChildOperation(prunedTreesReducer);
@@ -258 +240 @@
       var collectResults = ExecutionContext.CreateChildOperation(resultsCollector);
 
-      return new OperationCollection { prune, reducePrunedSubtrees, reducePrunedTrees, collectValues, collectResults, base.Apply() };
+      return new OperationCollection { prune, reducePrunedNodes, reducePrunedSubtrees, reducePrunedTrees, collectValues, collectResults, base.Apply() };
     }
 
     private void InitializeOperators() {
+      prunedNodesReducer = new DataReducer();
+      prunedNodesReducer.ParameterToReduce.ActualName = PruningOperator.PrunedNodesParameter.ActualName;
+      prunedNodesReducer.ReductionOperation.Value = new ReductionOperation(ReductionOperations.Sum); // sum all the pruned subtrees parameter values
+      prunedNodesReducer.TargetOperation.Value = new ReductionOperation(ReductionOperations.Assign); // asign the sum to the target parameter
+      prunedNodesReducer.TargetParameter.ActualName = TotalNumberOfPrunedNodesParameterName;
+
       prunedSubtreesReducer = new DataReducer();
       prunedSubtreesReducer.ParameterToReduce.ActualName = PruningOperator.PrunedSubtreesParameter.ActualName;
@@ -275 +263 @@
 
       valuesCollector = new DataTableValuesCollector();
+      valuesCollector.CollectedValues.Add(new LookupParameter<IntValue>(TotalNumberOfPrunedNodesParameterName));
       valuesCollector.CollectedValues.Add(new LookupParameter<IntValue>(TotalNumberOfPrunedSubtreesParameterName));
       valuesCollector.CollectedValues.Add(new LookupParameter<IntValue>(TotalNumberOfPrunedTreesParameterName));