Changeset 12835 for trunk/sources/HeuristicLab.Problems.QuadraticAssignment.Algorithms/3.3/RobustTabooSeachOperator.cs

Timestamp:

08/03/15 23:42:33 (9 years ago)

Author:

abeham

Message:

#2444: changed counting to solution evaluation equivalents in order to avoid running into int.MaxValue for long runs

File:

• trunk/sources/HeuristicLab.Problems.QuadraticAssignment.Algorithms/3.3/RobustTabooSeachOperator.cs (modified) (6 diffs)

trunk/sources/HeuristicLab.Problems.QuadraticAssignment.Algorithms/3.3/RobustTabooSeachOperator.cs

@@ -20 +20 @@
 #endregion
 
+using System;
 using HeuristicLab.Common;
 using HeuristicLab.Core;
@@ -92 +93 @@
     }
 
-    public ILookupParameter<IntValue> EvaluatedMovesParameter {
-      get { return (ILookupParameter<IntValue>)Parameters["EvaluatedMoves"]; }
+    public ILookupParameter<IntValue> EvaluatedSolutionsParameter {
+      get { return (ILookupParameter<IntValue>)Parameters["EvaluatedSolutions"]; }
+    }
+
+    public ILookupParameter<DoubleValue> EvaluatedSolutionEquivalentsParameter {
+      get { return (ILookupParameter<DoubleValue>)Parameters["EvaluatedSolutionEquivalents"]; }
     }
     #endregion
@@ -121 +126 @@
       Parameters.Add(new ValueLookupParameter<IntValue>("AlternativeAspirationTenure", "The time t that a move will be remembered for the alternative aspiration condition."));
       Parameters.Add(new LookupParameter<BoolValue>("AllMovesTabu", "Indicates that all moves are tabu."));
-      Parameters.Add(new LookupParameter<IntValue>("EvaluatedMoves", "The number of move evaluations made."));
+      Parameters.Add(new LookupParameter<IntValue>("EvaluatedSolutions", "The number of evaluated solutions."));
+      Parameters.Add(new LookupParameter<DoubleValue>("EvaluatedSolutionEquivalents", "The number of evaluated solution equivalents."));
     }
 
@@ -135 +141 @@
         Parameters.Add(new LookupParameter<BoolValue>("AllMovesTabu", "Indicates that all moves are tabu."));
       }
-      if (!Parameters.ContainsKey("EvaluatedMoves")) {
-        Parameters.Add(new LookupParameter<IntValue>("EvaluatedMoves", "The number of move evaluations made."));
+      if (!Parameters.ContainsKey("EvaluatedSolutions")) {
+        Parameters.Add(new LookupParameter<IntValue>("EvaluatedSolutions", "The number of evaluated solutions."));
+      }
+      if (!Parameters.ContainsKey("EvaluatedSolutionEquivalents")) {
+        Parameters.Add(new LookupParameter<DoubleValue>("EvaluatedSolutionEquivalents", "The number of evaluated solution equivalents."));
       }
       #endregion
@@ -171 +180 @@
       bool already_aspired = false;
 
-      var evaluatedMoves = 0;
+      double evaluations = EvaluatedSolutionsParameter.ActualValue.Value;
       foreach (Swap2Move move in ExhaustiveSwap2MoveGenerator.Generate(solution)) {
         double moveQuality;
         if (lastMove == null) {
           moveQuality = QAPSwap2MoveEvaluator.Apply(solution, move, weights, distances);
-          evaluatedMoves++;
+          evaluations += 4.0 / solution.Length;
         } else if (allMovesTabu) moveQuality = moveQualityMatrix[move.Index1, move.Index2];
         else {
           moveQuality = QAPSwap2MoveEvaluator.Apply(solution, move, moveQualityMatrix[move.Index1, move.Index2], weights, distances, lastMove);
-          evaluatedMoves++;
+          if (move.Index1 == lastMove.Index1 || move.Index2 == lastMove.Index1 || move.Index1 == lastMove.Index2 || move.Index2 == lastMove.Index2)
+            evaluations += 4.0 / solution.Length;
+          else evaluations += 2.0 / (solution.Length * solution.Length);
         }
 
@@ -214 +225 @@
       }
 
-      EvaluatedMovesParameter.ActualValue.Value += evaluatedMoves;
+      EvaluatedSolutionEquivalentsParameter.ActualValue.Value = evaluations;
+      EvaluatedSolutionsParameter.ActualValue.Value = (int)Math.Ceiling(evaluations);
 
       allMovesTabu = bestMove == null;