Changeset 8437 for branches/NCA/HeuristicLab.Algorithms.NCA/3.3/NCAModel.cs

Timestamp:

08/08/12 16:46:53 (12 years ago)

Author:

abeham

Message:

#1913:

• Improved speed of NCA
• Reorganized things

File:

• branches/NCA/HeuristicLab.Algorithms.NCA/3.3/NCAModel.cs (modified) (1 diff)

branches/NCA/HeuristicLab.Algorithms.NCA/3.3/NCAModel.cs

@@ -129 +129 @@
       return CreateClassificationSolution(problemData);
     }
+
+    public double[,] Reduce(Dataset dataset, IEnumerable<int> rows) {
+      var result = new double[rows.Count(), transformationMatrix.GetLength(1)];
+      int v = 0;
+      foreach (var r in rows) {
+        int i = 0;
+        foreach (var variable in allowedInputVariables) {
+          double val = dataset.GetDoubleValue(variable, r);
+          for (int j = 0; j < result.GetLength(1); j++)
+            result[v, j] += val * transformationMatrix[i, j];
+          i++;
+        }
+        v++;
+      }
+      return result;
+    }
   }
 }