Changeset 13751 for branches/PerformanceComparison/HeuristicLab.OptimizationExpertSystem.Common/3.3

Timestamp:

04/11/16 17:34:50 (8 years ago)

Author:

abeham

Message:

#2457: worked on problem instance mapping

File:

• branches/PerformanceComparison/HeuristicLab.OptimizationExpertSystem.Common/3.3/KnowledgeCenter.cs (modified) (14 diffs)

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

@@ -53 +53 @@
     }
 
-    private IntValue maximumEvaluations;
+    private readonly IntValue maximumEvaluations;
     public IntValue MaximumEvaluations {
       get { return maximumEvaluations; }
     }
 
-    private RunCollection instanceRuns;
+    private readonly RunCollection instanceRuns;
     public RunCollection InstanceRuns {
       get { return instanceRuns; }
     }
 
-    private RunCollection seededRuns;
+    private readonly RunCollection seededRuns;
     public RunCollection SeededRuns {
       get { return seededRuns; }
     }
 
-    private RunCollection knowledgeBase;
+    private readonly RunCollection knowledgeBase;
     public RunCollection KnowledgeBase {
       get { return knowledgeBase; }
     }
 
-    private SingleObjectiveOKBProblem problem;
+    private readonly SingleObjectiveOKBProblem problem;
     public SingleObjectiveOKBProblem Problem {
       get { return problem; }
     }
 
-    private ItemList<IAlgorithm> suggestedInstances;
-    private ReadOnlyItemList<IAlgorithm> readOnlySuggestedInstances;
+    private readonly ItemList<IAlgorithm> suggestedInstances;
+    private readonly ReadOnlyItemList<IAlgorithm> readOnlySuggestedInstances;
     public ReadOnlyItemList<IAlgorithm> SuggestedInstances {
       get { return readOnlySuggestedInstances; }
     }
 
-    private RunCollection problemInstances;
+    private readonly RunCollection problemInstances;
     public RunCollection ProblemInstances {
       get { return problemInstances; }
     }
 
-    private CheckedItemList<IScope> solutionSeedingPool;
+    private readonly CheckedItemList<StringValue> problemCharacteristics;
+    public CheckedItemList<StringValue> ProblemCharacteristics {
+      get { return problemCharacteristics; }
+    } 
+
+    private readonly CheckedItemList<IScope> solutionSeedingPool;
     public CheckedItemList<IScope> SolutionSeedingPool {
       get { return solutionSeedingPool; }
     }
 
-    private EnumValue<SeedingStrategyTypes> seedingStrategy;
+    private readonly EnumValue<SeedingStrategyTypes> seedingStrategy;
     public EnumValue<SeedingStrategyTypes> SeedingStrategy {
       get { return seedingStrategy; }
@@ -101 +106 @@
     private BidirectionalLookup<long, IRun> algorithmId2RunMapping;
     private BidirectionalDictionary<long, IAlgorithm> algorithmId2AlgorithmInstanceMapping;
-
-    private Run currentInstance;
-
+    private BidirectionalDictionary<long, IRun> problemId2ProblemInstanceMapping;
+    
     private bool Maximization {
       get { return Problem != null && Problem.ProblemId >= 0 && ((IValueParameter<BoolValue>)Problem.MaximizationParameter).Value.Value; }
@@ -116 +120 @@
       readOnlySuggestedInstances = suggestedInstances.AsReadOnly();
       problemInstances = new RunCollection();
+      problemCharacteristics = new CheckedItemList<StringValue>();
       problem = new SingleObjectiveOKBProblem();
       algorithmId2RunMapping = new BidirectionalLookup<long, IRun>();
       algorithmId2AlgorithmInstanceMapping = new BidirectionalDictionary<long, IAlgorithm>();
+      problemId2ProblemInstanceMapping = new BidirectionalDictionary<long, IRun>();
       solutionSeedingPool = new CheckedItemList<IScope>();
       seedingStrategy = new EnumValue<SeedingStrategyTypes>(SeedingStrategyTypes.NoSeeding);
@@ -162 +168 @@
     }
 
-    private void UpdateInstanceProjection() {
-      currentInstance = null;
-      var filter = new HashSet<string>();
-
-      if (Problem.ProblemId != -1) {
-        currentInstance = new Run { Name = Problem.Name };
-        Problem.Problem.CollectParameterValues(currentInstance.Parameters);
-        foreach (var c in RunCreationClient.Instance.GetCharacteristicValues(Problem.ProblemId)) {
-          var key = "Characteristic." + c.Name;
-          currentInstance.Results.Add(key, RunCreationClient.Instance.ConvertToItem(c));
-          filter.Add(key);
-        }
-      }
-      // TODO: There is a problem with missing values that has to be solved
-      // The common set of characteristics among all problems may be too small to be useful
-      // It has to be decided somehow which problem instances to include in order to obtain the set of features that is expressive and available
-      var allCharacteristics = ProblemInstances.Select(x => new HashSet<string>(x.Results.Where(y => y.Key.StartsWith("Characteristic.", StringComparison.Ordinal)).Select(y => y.Key))).ToList();
-      if (allCharacteristics.Count == 0) return;
-
-      var commonCharacteristics = filter.Count > 0 ? filter : allCharacteristics[0];
-      for (var i = 0; i < allCharacteristics.Count; i++)
-        commonCharacteristics.IntersectWith(allCharacteristics[i]);
-
-      if (commonCharacteristics.Count == 0) return;
-
-      var instances = new Dictionary<string, double[]>();
-      foreach (var i in ProblemInstances)
-        instances[i.Name] = i.Results.Where(x => commonCharacteristics.Contains(x.Key)).OrderBy(x => x.Key).Select(x => (double)((dynamic)x.Value).Value).ToArray();
-      if (currentInstance != null)
-        instances[currentInstance.Name] = currentInstance.Results.Where(x => commonCharacteristics.Contains(x.Key)).OrderBy(x => x.Key).Select(x => (double)((dynamic)x.Value).Value).ToArray();
+    public bool IsCurrentInstance(IRun run) {
+      if (!problemId2ProblemInstanceMapping.ContainsSecond(run)) return false;
+      return problemId2ProblemInstanceMapping.GetBySecond(run) == Problem.ProblemId;
+    }
+
+    public void UpdateInstanceProjection() {
+      if (ProblemCharacteristics.Count == 0) return;
+
+      var instances = new Dictionary<IRun, double[]>();
+      foreach (var run in ProblemInstances) {
+        var f = 0;
+        instances[run] = new double[ProblemCharacteristics.CheckedItems.Count()];
+        foreach (var c in ProblemCharacteristics.CheckedItems.Select(x => x.Value.Value)) {
+          IItem item;
+          if (run.Results.TryGetValue(c, out item)) {
+            instances[run][f] = (double)((dynamic)item).Value;
+          } else instances[run][f] = 0; // TODO: handle missing values
+          f++;
+        }
+      }
 
       var allValues = instances.SelectMany(x => x.Value).ToList();
@@ -205 +201 @@
       }
 
-      var key2Idx = new BidirectionalDictionary<string, int>();
+      var key2Idx = new BidirectionalDictionary<IRun, int>();
       foreach (var kvp in instances.Select((k, i) => new { Index = i, Key = k.Key }))
         key2Idx.Add(kvp.Key, kvp.Index);
@@ -222 +218 @@
       #endregion
       #region PCA
-      var ds = new double[instances.Count, commonCharacteristics.Count];
+      var ds = new double[instances.Count, ProblemCharacteristics.CheckedItems.Count()];
       foreach (var instance in instances) {
         var arr = instance.Value;
@@ -235 +231 @@
       #endregion
       #region SOM
-      var features = new DoubleMatrix(commonCharacteristics.Count, instances.Count);
+      var features = new DoubleMatrix(ProblemCharacteristics.CheckedItems.Count(), instances.Count);
       foreach (var instance in instances) {
         var arr = instance.Value;
@@ -241 +237 @@
           features[feature, key2Idx.GetByFirst(instance.Key)] = arr[feature];
       }
-      var somCoords = SOM.Map(features, new MersenneTwister(42), somSize: 20, learningRadius: 20, jittering: true);
+      var somCoords = SOM.Map(features, new MersenneTwister(42), somSize: 20, learningRadius: 20, iterations: 200, jittering: true);
       #endregion
 
@@ -249 +245 @@
           double x = 0, y = 0;
           for (var feature = 0; feature < ds.GetLength(1); feature++) {
-            x += ds[key2Idx.GetByFirst(instance.Name), feature] * v[feature, 0];
-            y += ds[key2Idx.GetByFirst(instance.Name), feature] * v[feature, 1];
+            x += ds[key2Idx.GetByFirst(instance), feature] * v[feature, 0];
+            y += ds[key2Idx.GetByFirst(instance), feature] * v[feature, 1];
           }
 
@@ -262 +258 @@
 
           if (instance.Results.TryGetValue("Projection.MDS.X", out item)) {
-            ((DoubleValue)item).Value = coords[key2Idx.GetByFirst(instance.Name), 0];
-          } else instance.Results.Add("Projection.MDS.X", new DoubleValue(coords[key2Idx.GetByFirst(instance.Name), 0]));
+            ((DoubleValue)item).Value = coords[key2Idx.GetByFirst(instance), 0];
+          } else instance.Results.Add("Projection.MDS.X", new DoubleValue(coords[key2Idx.GetByFirst(instance), 0]));
           if (instance.Results.TryGetValue("Projection.MDS.Y", out item)) {
-            ((DoubleValue)item).Value = coords[key2Idx.GetByFirst(instance.Name), 1];
-          } else instance.Results.Add("Projection.MDS.Y", new DoubleValue(coords[key2Idx.GetByFirst(instance.Name), 1]));
+            ((DoubleValue)item).Value = coords[key2Idx.GetByFirst(instance), 1];
+          } else instance.Results.Add("Projection.MDS.Y", new DoubleValue(coords[key2Idx.GetByFirst(instance), 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]));
+            ((DoubleValue)item).Value = somCoords[key2Idx.GetByFirst(instance), 0];
+          } else instance.Results.Add("Projection.SOM.X", new DoubleValue(somCoords[key2Idx.GetByFirst(instance), 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]));
+            ((DoubleValue)item).Value = somCoords[key2Idx.GetByFirst(instance), 1];
+          } else instance.Results.Add("Projection.SOM.Y", new DoubleValue(somCoords[key2Idx.GetByFirst(instance), 1]));
         }
       } finally { ProblemInstances.UpdateOfRunsInProgress = false; }
-
-      if (currentInstance != null) {
-        double x = 0, y = 0;
-        for (var feature = 0; feature < ds.GetLength(1); feature++) {
-          x += ds[key2Idx.GetByFirst(currentInstance.Name), feature] * v[feature, 0];
-          y += ds[key2Idx.GetByFirst(currentInstance.Name), feature] * v[feature, 1];
-        }
-
-        IItem item;
-        if (currentInstance.Results.TryGetValue("Projection.PCA.X", out item)) {
-          ((DoubleValue)item).Value = x;
-        } else currentInstance.Results.Add("Projection.PCA.X", new DoubleValue(x));
-        if (currentInstance.Results.TryGetValue("Projection.PCA.Y", out item)) {
-          ((DoubleValue)item).Value = y;
-        } else currentInstance.Results.Add("Projection.PCA.Y", new DoubleValue(y));
-
-        if (currentInstance.Results.TryGetValue("Projection.MDS.X", out item)) {
-          ((DoubleValue)item).Value = coords[key2Idx.GetByFirst(currentInstance.Name), 0];
-        } else currentInstance.Results.Add("Projection.MDS.X", new DoubleValue(coords[key2Idx.GetByFirst(currentInstance.Name), 0]));
-        if (currentInstance.Results.TryGetValue("Projection.MDS.Y", out item)) {
-          ((DoubleValue)item).Value = coords[key2Idx.GetByFirst(currentInstance.Name), 1];
-        } else currentInstance.Results.Add("Projection.MDS.Y", new DoubleValue(coords[key2Idx.GetByFirst(currentInstance.Name), 1]));
-      }
-    }
-
-    public Tuple<double, double> ProjectCurrentInstance(string projection) {
-      if (currentInstance == null) return null;
-      var xKey = "Projection." + projection + ".X";
-      var yKey = "Projection." + projection + ".Y";
-      if (!currentInstance.Results.ContainsKey(xKey) || !currentInstance.Results.ContainsKey(yKey))
-        return null;
-      var x = ((DoubleValue)currentInstance.Results[xKey]).Value;
-      var y = ((DoubleValue)currentInstance.Results[yKey]).Value;
-      return Tuple.Create(x, y);
     }
 
@@ -455 +417 @@
         ProblemInstances.UpdateOfRunsInProgress = true;
         ProblemInstances.Clear();
+        var characteristics = new HashSet<string>();
         var totalProblems = adminClient.Problems.Count(x => x.ProblemClassId == probClassId);
         foreach (var problInst in adminClient.Problems.Where(x => x.ProblemClassId == probClassId)) {
@@ -470 +433 @@
                 foreach (var v in RunCreationClient.Instance.GetCharacteristicValues(problInst.Id)) {
                   probRun.Results.Add("Characteristic." + v.Name, RunCreationClient.Instance.ConvertToItem(v));
+                  characteristics.Add(v.Name);
                 }
                 ProblemInstances.Add(probRun);
+                problemId2ProblemInstanceMapping.Add(problInst.Id, probRun);
               } catch { }
               stream.Close();
@@ -561 +526 @@
               var result = ExpectedRuntimeHelper.CalculateErt(kvp.Value, "QualityPerEvaluations", bkQuality * target, maximization);
               var resultName = kvp.Key + "@" + ((target - 1) * 100) + "%";
+              characteristics.Add(resultName);
               IItem item;
               if (instance.Results.TryGetValue(resultName, out item)) {
@@ -568 +534 @@
           }
         }
+        ProblemCharacteristics.Replace(characteristics.Select(x => new StringValue(x)));
         try {
           KnowledgeBase.UpdateOfRunsInProgress = true;