Changeset 8900 for trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Korns/KornsFunctionFiveteen.cs

Timestamp:

11/12/12 13:51:49 (11 years ago)

Author:

sforsten

Message:

#1979:

• renamed Keijzer 1-3
• corrected training and test partition of Keijzer 9 and 10
• changed interval for some variables in Korn 7, 9, 15 to avoid infinity and NaN values

File:

• trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Korns/KornsFunctionFiveteen.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Korns/KornsFunctionFiveteen.cs

@@ -40 +40 @@
         + "For each test a training matrix is filled with random numbers between -50 and +50. The test case "
         + "target expressions are limited to one basis function whose maximum depth is three grammar nodes.\"" + Environment.NewLine + Environment.NewLine
-        + "Note: Because of the logarithm only non-negatic values are created for the input variables!";
+        + "Note: Because of the logarithm and the exponential function as denominator only non-negatic values are created for their input variables!";
       }
     }
@@ -54 +54 @@
       List<List<double>> data = new List<List<double>>();
       data.Add(ValueGenerator.GenerateUniformDistributedValues(TestPartitionEnd, -50, 50).ToList());
-      data.Add(ValueGenerator.GenerateUniformDistributedValues(TestPartitionEnd, -50, 50).ToList());
+      data.Add(ValueGenerator.GenerateUniformDistributedValues(TestPartitionEnd, 0, 50).ToList()); // note: range is only [0,50] to prevent NaN values (deviates from gp benchmark paper)
       data.Add(ValueGenerator.GenerateUniformDistributedValues(TestPartitionEnd, 0, 50).ToList()); // note: range is only [0,50] to prevent NaN values (deviates from gp benchmark paper)
       data.Add(ValueGenerator.GenerateUniformDistributedValues(TestPartitionEnd, -50, 50).ToList());