Changeset 4228

Timestamp:

08/16/10 11:25:07 (14 years ago)

Author:

gkronber

Message:

Fixed calculation of relative quality for maximization problems in DDL. #1142

File:

• branches/DataAnalysis/HeuristicLab.Problems.DataAnalysis/3.3/Operators/DynamicDepthLimitComparator.cs (modified) (1 diff)

branches/DataAnalysis/HeuristicLab.Problems.DataAnalysis/3.3/Operators/DynamicDepthLimitComparator.cs

@@ -91 +91 @@
         double cLower = CLowerParameter.Value.Value;
         double bestQuality = BestQualityParameter.ActualValue.Value;
-        double relativeQuality = maximization ? (leftQuality - bestQuality) / leftQuality : (bestQuality - leftQuality) / leftQuality;
+        double relativeQuality = maximization ? leftQuality / bestQuality - 1 : bestQuality / leftQuality - 1;
         if (tree.Height <= ddl) {
           // height is smaller than ddl => check improvement and reduce ddl