Changeset 2041 for trunk/sources/HeuristicLab.GP.StructureIdentification

Timestamp:

06/10/09 19:05:34 (15 years ago)

Author:

gkronber

Message:

Implemented base classes for variable impact analysis and implemented specific operators for GP. #644 (Variable impact of CEDMA models should be calculated and stored in the result DB)

Location:

trunk/sources/HeuristicLab.GP.StructureIdentification/3.3

Files:

• AlgorithmBase.cs (modified) (1 diff)
• Evaluators/SimpleEvaluator.cs (modified) (3 diffs)
• Evaluators/VariableEvaluationImpactCalculator.cs (added)
• Evaluators/VariableQualityImpactCalculator.cs (added)
• HeuristicLab.GP.StructureIdentification-3.3.csproj (modified) (1 diff)

trunk/sources/HeuristicLab.GP.StructureIdentification/3.3/AlgorithmBase.cs

@@ -423 +423 @@
       model.TrainingMeanSquaredError = bestModelScope.GetVariableValue<DoubleData>("Quality", false).Data;
       model.ValidationMeanSquaredError = bestModelScope.GetVariableValue<DoubleData>("ValidationQuality", false).Data;
+      // calculate and set variable impacts
+      VariableEvaluationImpactCalculator evaluationImpactCalculator = new VariableEvaluationImpactCalculator();
+      VariableQualityImpactCalculator qualityImpactCalculator = new VariableQualityImpactCalculator();
+
+      evaluationImpactCalculator.Apply(bestModelScope);
+      qualityImpactCalculator.Apply(bestModelScope);
+
+      ItemList evaluationImpacts = bestModelScope.GetVariableValue<ItemList>("VariableEvaluationImpacts", false);
+      ItemList qualityImpacts = bestModelScope.GetVariableValue<ItemList>("VariableQualityImpacts", false);
+      foreach (ItemList row in evaluationImpacts) {
+        string variableName = ((StringData)row[0]).Data;
+        double impact = ((DoubleData)row[0]).Data;
+        model.SetVariableEvaluationImpact(variableName, impact);
+      }
+      foreach (ItemList row in qualityImpacts) {
+        string variableName = ((StringData)row[0]).Data;
+        double impact = ((DoubleData)row[0]).Data;
+        model.SetVariableQualityImpact(variableName, impact);
+      }
       return model;
     }

trunk/sources/HeuristicLab.GP.StructureIdentification/3.3/Evaluators/SimpleEvaluator.cs

@@ -33 +33 @@
     public SimpleEvaluator()
       : base() {
-      AddVariableInfo(new VariableInfo("Values", "The values of the target variable as predicted by the model and the original value of the target variable", typeof(ItemList), VariableKind.New | VariableKind.Out));
+      AddVariableInfo(new VariableInfo("Values", "Target vs. predicted values", typeof(DoubleMatrixData), VariableKind.New | VariableKind.Out));
     }
 
     public override void Evaluate(IScope scope, ITreeEvaluator evaluator, Dataset dataset, int targetVariable, int start, int end, bool updateTargetValues) {
-      ItemList values = GetVariableValue<ItemList>("Values", scope, false, false);
+      DoubleMatrixData values = GetVariableValue<DoubleMatrixData>("Values", scope, false, false);
       if (values == null) {
-        values = new ItemList();
+        values = new DoubleMatrixData();
         IVariableInfo info = GetVariableInfo("Values");
         if (info.Local)
@@ -46 +46 @@
           scope.AddVariable(new HeuristicLab.Core.Variable(scope.TranslateName(info.FormalName), values));
       }
-      values.Clear();
+
+      double[,] v = new double[end - start, 2];
 
       for (int sample = start; sample < end; sample++) {
-        ItemList row = new ItemList();
         double estimated = evaluator.Evaluate(sample);
         double original = dataset.GetValue(sample, targetVariable);
@@ -55 +55 @@
           dataset.SetValue(sample, targetVariable, estimated);
         }
-        row.Add(new DoubleData(estimated));
-        row.Add(new DoubleData(original));
-        values.Add(row);
+        v[sample - start, 0] = original;
+        v[sample - start, 1] = estimated;
       }
+      values.Data = v;
     }
   }

trunk/sources/HeuristicLab.GP.StructureIdentification/3.3/HeuristicLab.GP.StructureIdentification-3.3.csproj

@@ -140 +140 @@
     <Compile Include="Tangens.cs" />
     <Compile Include="Variable.cs" />
+    <Compile Include="Evaluators\VariableEvaluationImpactCalculator.cs" />
+    <Compile Include="Evaluators\VariableQualityImpactCalculator.cs" />
     <Compile Include="Xor.cs" />
   </ItemGroup>