Changeset 7464 for branches/ClassificationEnsembleVoting/HeuristicLab.Problems.DataAnalysis.Views/3.4/Classification/ClassificationEnsembleSolutionEstimatedClassValuesView.cs

Timestamp:

02/07/12 16:50:35 (12 years ago)

Author:

sforsten

Message:

#1776:

• selection of a voting strategy is now possible
• a more sophisticated strategy as discussed with gkronber will be implemented soon

File:

• branches/ClassificationEnsembleVoting/HeuristicLab.Problems.DataAnalysis.Views/3.4/Classification/ClassificationEnsembleSolutionEstimatedClassValuesView.cs (modified) (3 diffs)

branches/ClassificationEnsembleVoting/HeuristicLab.Problems.DataAnalysis.Views/3.4/Classification/ClassificationEnsembleSolutionEstimatedClassValuesView.cs

@@ -102 +102 @@
       List<List<double?>> estimatedValuesVector = GetEstimatedValues(SamplesComboBox.SelectedItem.ToString(), indizes,
                                                             Content.ClassificationSolutions);
+      List<double> weights = Content.Weights.ToList();
+      double weightSum = weights.Sum();
 
       for (int i = 0; i < indizes.Length; i++) {
@@ -111 +113 @@
           values[i, 2] = estimatedClassValues[i].ToString();
           values[i, 3] = (target[i].IsAlmost(estimatedClassValues[i])).ToString();
+
+          IEnumerable<int> indices = FindAllIndices(estimatedValuesVector[i], estimatedClassValues[i]);
+          double confidence = 0.0;
+          foreach (var index in indices) {
+            confidence += weights[index];
+          }
+          values[i, 4] = (confidence / weightSum).ToString();
+          //var estimationCount = groups.Where(g => g.Key != null).Select(g => g.Count).Sum();
+          //values[i, 4] =
+          //  (((double)groups.Where(g => g.Key == estimatedClassValues[i]).Single().Count) / estimationCount).ToString();
+
           var groups =
             estimatedValuesVector[i].GroupBy(x => x).Select(g => new { Key = g.Key, Count = g.Count() }).ToList();
-          var estimationCount = groups.Where(g => g.Key != null).Select(g => g.Count).Sum();
-          values[i, 4] =
-            (((double)groups.Where(g => g.Key == estimatedClassValues[i]).Single().Count) / estimationCount).ToString();
           for (int classIndex = 0; classIndex < Content.ProblemData.ClassValues.Count; classIndex++) {
             var group = groups.Where(g => g.Key == Content.ProblemData.ClassValues[classIndex]).SingleOrDefault();
@@ -136 +146 @@
       matrix.SortableView = true;
       matrixView.Content = matrix;
+    }
+
+    private IEnumerable<int> FindAllIndices(List<double?> list, double value) {
+      List<int> indices = new List<int>();
+      for (int i = 0; i < list.Count; i++) {
+        if (list[i].Equals(value))
+          indices.Add(i);
+      }
+      return indices;
     }