Changeset 13118 for trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GaussianProcess/GaussianProcessBase.cs

Timestamp:

11/05/15 07:46:38 (7 years ago)

Author:

gkronber

Message:

#2497: added hidden parameter to turn on/off scaling of input variables in Gaussian process models

File:

• trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GaussianProcess/GaussianProcessBase.cs (modified) (5 diffs)

trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GaussianProcess/GaussianProcessBase.cs

@@ -51 +51 @@
     protected const string HyperparameterGradientsParameterName = "HyperparameterGradients";
     protected const string SolutionCreatorParameterName = "GaussianProcessSolutionCreator";
+    protected const string ScaleInputValuesParameterName = "ScaleInputValues";
 
     public new IDataAnalysisProblem Problem {
@@ -72 +73 @@
     public IValueParameter<BoolValue> SetSeedRandomlyParameter {
       get { return (IValueParameter<BoolValue>)Parameters[SetSeedRandomlyParameterName]; }
+    }
+    public IFixedValueParameter<BoolValue> ScaleInputValuesParameter {
+      get { return (IFixedValueParameter<BoolValue>)Parameters[ScaleInputValuesParameterName]; }
     }
     #endregion
@@ -89 +93 @@
     public int Seed { get { return SeedParameter.Value.Value; } set { SeedParameter.Value.Value = value; } }
     public bool SetSeedRandomly { get { return SetSeedRandomlyParameter.Value.Value; } set { SetSeedRandomlyParameter.Value.Value = value; } }
+
+    public bool ScaleInputValues {
+      get { return ScaleInputValuesParameter.Value.Value; }
+      set { ScaleInputValuesParameter.Value.Value = value; }
+    }
     #endregion
 
@@ -107 +116 @@
       Parameters.Add(new ValueParameter<BoolValue>(ApproximateGradientsParameterName, "Indicates that gradients should not be approximated (necessary for LM-BFGS).", new BoolValue(false)));
       Parameters[ApproximateGradientsParameterName].Hidden = true; // should not be changed
+
+      Parameters.Add(new FixedValueParameter<BoolValue>(ScaleInputValuesParameterName,
+        "Determines if the input variable values are scaled to the range [0..1] for training.", new BoolValue(true)));
+      Parameters[ScaleInputValuesParameterName].Hidden = true;
 
       // necessary for BFGS
@@ -191 +204 @@
         Parameters["Maximization"].Hidden = true;
       }
+
+      if (!Parameters.ContainsKey(ScaleInputValuesParameterName)) {
+        Parameters.Add(new FixedValueParameter<BoolValue>(ScaleInputValuesParameterName,
+          "Determines if the input variable values are scaled to the range [0..1] for training.", new BoolValue(true)));
+        Parameters[ScaleInputValuesParameterName].Hidden = true;
+      }
       #endregion
     }