Changeset 13750 for branches/PerformanceComparison/HeuristicLab.OptimizationExpertSystem.Common

Timestamp:

04/08/16 14:24:51 (8 years ago)

Author:

abeham

Message:

#2457: Added SOM projection for problem instances, fixed a bug (learningRadius was not used)

Location:

branches/PerformanceComparison/HeuristicLab.OptimizationExpertSystem.Common/3.3

Files:

• HeuristicLab.OptimizationExpertSystem.Common-3.3.csproj (modified) (1 diff)
• KnowledgeCenter.cs (modified) (4 diffs)

branches/PerformanceComparison/HeuristicLab.OptimizationExpertSystem.Common/3.3/HeuristicLab.OptimizationExpertSystem.Common-3.3.csproj

@@ -132 +132 @@
       <Private>False</Private>
     </Reference>
+    <Reference Include="HeuristicLab.Random-3.3, Version=3.3.0.0, Culture=neutral, PublicKeyToken=ba48961d6f65dcec, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\trunk\sources\bin\HeuristicLab.Random-3.3.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />

branches/PerformanceComparison/HeuristicLab.OptimizationExpertSystem.Common/3.3/KnowledgeCenter.cs

@@ -21 +21 @@
 
 using HeuristicLab.Analysis;
+using HeuristicLab.Analysis.SelfOrganizingMaps;
 using HeuristicLab.Collections;
 using HeuristicLab.Common;
@@ -29 +30 @@
 using HeuristicLab.Optimization;
 using HeuristicLab.Persistence.Default.Xml;
+using HeuristicLab.Random;
 using System;
 using System.Collections.Generic;
@@ -232 +234 @@
       alglib.pcabuildbasis(ds, ds.GetLength(0), ds.GetLength(1), out info, out s2, out v);
       #endregion
+      #region SOM
+      var features = new DoubleMatrix(commonCharacteristics.Count, instances.Count);
+      foreach (var instance in instances) {
+        var arr = instance.Value;
+        for (var feature = 0; feature < arr.Length; feature++)
+          features[feature, key2Idx.GetByFirst(instance.Key)] = arr[feature];
+      }
+      var somCoords = SOM.Map(features, new MersenneTwister(42), somSize: 20, learningRadius: 20, jittering: true);
+      #endregion
 
       ProblemInstances.UpdateOfRunsInProgress = true;
@@ -256 +267 @@
             ((DoubleValue)item).Value = coords[key2Idx.GetByFirst(instance.Name), 1];
           } else instance.Results.Add("Projection.MDS.Y", new DoubleValue(coords[key2Idx.GetByFirst(instance.Name), 1]));
+
+          if (instance.Results.TryGetValue("Projection.SOM.X", out item)) {
+            ((DoubleValue)item).Value = somCoords[key2Idx.GetByFirst(instance.Name), 0];
+          } else instance.Results.Add("Projection.SOM.X", new DoubleValue(somCoords[key2Idx.GetByFirst(instance.Name), 0]));
+          if (instance.Results.TryGetValue("Projection.SOM.Y", out item)) {
+            ((DoubleValue)item).Value = somCoords[key2Idx.GetByFirst(instance.Name), 1];
+          } else instance.Results.Add("Projection.SOM.Y", new DoubleValue(somCoords[key2Idx.GetByFirst(instance.Name), 1]));
         }
       } finally { ProblemInstances.UpdateOfRunsInProgress = false; }