Changeset 8910 for trunk/sources/HeuristicLab.Problems.QuadraticAssignment/3.3/BoundsCalculators

Timestamp:

11/14/12 11:19:36 (12 years ago)

Author:

abeham

Message:

#1841:

• Corrected best known solutions in new taillard and microarray instances
• Improved computation of an average fitness in the QAP

File:

• trunk/sources/HeuristicLab.Problems.QuadraticAssignment/3.3/BoundsCalculators/GilmoreLawlerBoundCalculator.cs (modified) (3 diffs)

trunk/sources/HeuristicLab.Problems.QuadraticAssignment/3.3/BoundsCalculators/GilmoreLawlerBoundCalculator.cs

@@ -22 +22 @@
 using System;
 using HeuristicLab.Data;
+using HeuristicLab.Encodings.PermutationEncoding;
 using HeuristicLab.Problems.LinearAssignment;
 
@@ -27 +28 @@
   public static class GilmoreLawlerBoundCalculator {
     public static double CalculateLowerBound(DoubleMatrix weights, DoubleMatrix distances) {
+      Permutation tmp;
+      return CalculateLowerBound(weights, distances, out tmp);
+    }
+
+    public static double CalculateLowerBound(DoubleMatrix weights, DoubleMatrix distances, out Permutation solution) {
       int N = weights.Rows;
       DoubleMatrix sortedWeights = SortEachRowExceptDiagonal(weights), sortedDistances = SortEachRowExceptDiagonal(distances);
@@ -40 +46 @@
 
       double result;
-      LinearAssignmentProblemSolver.Solve(costs, out result);
+      solution = new Permutation(PermutationTypes.Absolute, LinearAssignmentProblemSolver.Solve(costs, out result));
       return result;
     }