Changeset 5439 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Regression/3.3/Symbolic/MultiObjectiveSymbolicRegressionProblem.cs

Timestamp:

02/04/11 23:31:10 (13 years ago)

Author:

gkronber

Message:

#1040 Not directly related to NSGA-II implementation but not worth a separate ticket. Made minor improvements in multi-objective symbolic regression problem to make it work better with NSGA-II.

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Regression/3.3/Symbolic/MultiObjectiveSymbolicRegressionProblem.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Regression/3.3/Symbolic/MultiObjectiveSymbolicRegressionProblem.cs

@@ -71 +71 @@
     public MultiObjectiveSymbolicRegressionProblem()
       : base() {
-      var evaluator = new MultiObjectiveSymbolicRegressionMeanSquaredErrorEvaluator();
-      Parameters.Add(new ValueParameter<BoolArray>("Maximization", "Set to false as the error of the regression model should be minimized.", new BoolArray(new bool[] { false, false })));
+      var evaluator = new MultiObjectiveSymbolicRegressionPearsonsRSquaredEvaluator();
+      Parameters.Add(new ValueParameter<BoolArray>("Maximization", "Set to false as the error of the regression model should be minimized.", new BoolArray(new bool[] { true, false })));
       Parameters.Add(new ValueParameter<IMultiObjectiveSymbolicRegressionEvaluator>("Evaluator", "The operator which should be used to evaluate symbolic regression solutions.", evaluator));