Changeset 6416 for branches/QAPAlgorithms/HeuristicLab.Problems.QuadraticAssignment

Timestamp:

06/15/11 23:11:41 (14 years ago)

Author:

abeham

Message:

#1541

• Added PermutationView that allows to change the permutation type
• Updated AFA and PopDiv Analyzer
• Simplified QAP name to just the instance when loading from embedded resource

Location:

branches/QAPAlgorithms/HeuristicLab.Problems.QuadraticAssignment/3.3

Files:

• Analyzers/QAPAlleleFrequencyAnalyzer.cs (modified) (2 diffs)
• Analyzers/QAPPopulationDiversityAnalyzer.cs (modified) (5 diffs)
• HeuristicLab.Problems.QuadraticAssignment-3.3.csproj (modified) (1 diff)
• QAPPermutationProximityCalculator.cs (added)
• QuadraticAssignmentProblem.cs (modified) (1 diff)

branches/QAPAlgorithms/HeuristicLab.Problems.QuadraticAssignment/3.3/Analyzers/QAPAlleleFrequencyAnalyzer.cs

@@ -20 +20 @@
 #endregion
 
+using System.Collections.Generic;
 using HeuristicLab.Analysis;
 using HeuristicLab.Common;
@@ -56 +57 @@
 
     protected override Allele[] CalculateAlleles(Permutation solution) {
-      Allele[] alleles = new Allele[solution.Length];
+      Allele[] alleles = new Allele[solution.Length * solution.Length];
+      Dictionary<string, int> allelesDict = new Dictionary<string, int>();
       DoubleMatrix weights = WeightsParameter.ActualValue;
       DoubleMatrix distances = DistancesParameter.ActualValue;
-      int source, target;
       double impact;
 
-      for (int i = 0; i < solution.Length; i++) {
-        source = i;
-        target = solution[i];
-        impact = 0;
-        for (int j = 0; j < solution.Length; j++)
-          impact += weights[source, j] * distances[target, solution[j]];
-        alleles[i] = new Allele(source.ToString() + "->" + target.ToString(), impact);
+      for (int x = 0; x < solution.Length; x++) {
+        for (int y = 0; y < solution.Length; y++) {
+          string allele = weights[x, y].ToString() + ">" + distances[solution[x], solution[y]].ToString();
+          int repetition = 1;
+          if (allelesDict.ContainsKey(allele)) repetition += allelesDict[allele];
+          allelesDict[allele] = repetition;
+          impact = weights[x, y] * distances[solution[x], solution[y]];
+          alleles[x * solution.Length + y] = new Allele(allele + "/" + repetition, impact);
+        }
       }
 

branches/QAPAlgorithms/HeuristicLab.Problems.QuadraticAssignment/3.3/Analyzers/QAPPopulationDiversityAnalyzer.cs

@@ -23 +23 @@
 using HeuristicLab.Common;
 using HeuristicLab.Core;
+using HeuristicLab.Data;
 using HeuristicLab.Encodings.PermutationEncoding;
+using HeuristicLab.Parameters;
 using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
 
@@ -33 +35 @@
   [StorableClass]
   public sealed class QAPPopulationDiversityAnalyzer : PopulationDiversityAnalyzer<Permutation> {
+    public IValueParameter<BoolValue> UsePhenotypeSimilarityParameter {
+      get { return (IValueParameter<BoolValue>)Parameters["UsePhenotypeSimilarity"]; }
+    }
+    public ILookupParameter<DoubleMatrix> WeightsParameter {
+      get { return (ILookupParameter<DoubleMatrix>)Parameters["Weights"]; }
+    }
+    public ILookupParameter<DoubleMatrix> DistancesParameter {
+      get { return (ILookupParameter<DoubleMatrix>)Parameters["Distances"]; }
+    }
+
     [StorableConstructor]
     private QAPPopulationDiversityAnalyzer(bool deserializing) : base(deserializing) { }
     private QAPPopulationDiversityAnalyzer(QAPPopulationDiversityAnalyzer original, Cloner cloner) : base(original, cloner) { }
-    public QAPPopulationDiversityAnalyzer() : base() { }
+    public QAPPopulationDiversityAnalyzer()
+      : base() {
+      Parameters.Add(new ValueParameter<BoolValue>("UsePhenotypeSimilarity", "True if the similarity should be measured a level closer to the phenotype (the number of similar assignments of individual weights to distances). Set to false if the number of equal assignments (facility to location) should be counted.", new BoolValue(false)));
+      Parameters.Add(new LookupParameter<DoubleMatrix>("Weights", "The weights matrix."));
+      Parameters.Add(new LookupParameter<DoubleMatrix>("Distances", "The distances matrix."));
+    }
 
     public override IDeepCloneable Clone(Cloner cloner) {
@@ -42 +59 @@
     }
 
+    [StorableHook(HookType.AfterDeserialization)]
+    private void AfterDeserialization() {
+      // BackwardsCompatibility3.3
+      #region Backwards compatible code, remove with 3.4
+      if (!Parameters.ContainsKey("UsePhenotypeSimilarity"))
+        Parameters.Add(new ValueParameter<BoolValue>("UsePhenotypeSimilarity", "True if the similarity should be measured a level closer to the phenotype (the number of similar assignments of individual weights to distances). Set to false if the number of equal assignments (facility to location) should be counted.", new BoolValue(false)));
+      if (!Parameters.ContainsKey("Weights"))
+        Parameters.Add(new LookupParameter<DoubleMatrix>("Weights", "The weights matrix."));
+      if (!Parameters.ContainsKey("Distances"))
+        Parameters.Add(new LookupParameter<DoubleMatrix>("Distances", "The distances matrix."));
+      #endregion
+    }
+
     protected override double[,] CalculateSimilarities(Permutation[] solutions) {
+      DoubleMatrix weights = WeightsParameter.ActualValue, distances = DistancesParameter.ActualValue;
+      bool phenotypeSimilarity = UsePhenotypeSimilarityParameter.Value.Value;
       int count = solutions.Length;
       double[,] similarities = new double[count, count];
@@ -49 +81 @@
         similarities[i, i] = 1;
         for (int j = i + 1; j < count; j++) {
-          similarities[i, j] = CalculateSimilarity(solutions[i], solutions[j]);
+          if (phenotypeSimilarity)
+            similarities[i, j] = QAPPermutationProximityCalculator.CalculatePhenotypeSimilarity(solutions[i], solutions[j], weights, distances);
+          else similarities[i, j] = QAPPermutationProximityCalculator.CalculateGenotypeSimilarity(solutions[i], solutions[j]);
           similarities[j, i] = similarities[i, j];
         }
@@ -55 +89 @@
       return similarities;
     }
-
-    private double CalculateSimilarity(Permutation assignment1, Permutation assignment2) {
-      int identicalAssignments = 0;
-      for (int i = 0; i < assignment1.Length; i++) {
-        if (assignment1[i] == assignment2[i])
-          identicalAssignments++;
-      }
-      return ((double)identicalAssignments) / assignment1.Length;
-    }
   }
 }

branches/QAPAlgorithms/HeuristicLab.Problems.QuadraticAssignment/3.3/HeuristicLab.Problems.QuadraticAssignment-3.3.csproj

@@ -124 +124 @@
     <Compile Include="Parsers\QAPLIBParser.cs" />
     <Compile Include="QAPAssignment.cs" />
+    <Compile Include="QAPPermutationProximityCalculator.cs" />
     <Compile Include="QuadraticAssignmentProblem.cs" />
     <EmbeddedResource Include="Data\bur26a.dat" />

branches/QAPAlgorithms/HeuristicLab.Problems.QuadraticAssignment/3.3/QuadraticAssignmentProblem.cs

@@ -390 +390 @@
         Distances = new DoubleMatrix(parser.Distances);
         Weights = new DoubleMatrix(parser.Weights);
-        Name = "Quadratic Assignment Problem (loaded instance " + instance + ")";
-        Description = "Loaded embedded problem data of instance " + instance + ".";
+        Name = instance;
+        Description = "Loaded embedded QAPLIB problem data of instance " + instance + ".";
         OnReset();
       }