Changeset 5941 for trunk/sources/HeuristicLab.Algorithms.ParticleSwarmOptimization

Timestamp:

04/04/11 10:38:04 (14 years ago)

Author:

mkofler

Message:

#852: Set the default inertia value to 1 for consistency reasons.

File:

• trunk/sources/HeuristicLab.Algorithms.ParticleSwarmOptimization/3.3/ParticleSwarmOptimization.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Algorithms.ParticleSwarmOptimization/3.3/ParticleSwarmOptimization.cs

@@ -154 +154 @@
       Parameters.Add(new ValueParameter<IntValue>("MaxIterations", "Maximal number of iterations.", new IntValue(1000)));
       Parameters.Add(new ValueParameter<MultiAnalyzer>("Analyzer", "The operator used to analyze each generation.", new MultiAnalyzer()));
-      Parameters.Add(new ValueParameter<DoubleValue>("Inertia", "Inertia weight on a particle's movement (omega).", new DoubleValue(-0.2)));
+      Parameters.Add(new ValueParameter<DoubleValue>("Inertia", "Inertia weight on a particle's movement (omega).", new DoubleValue(1)));
       Parameters.Add(new ValueParameter<DoubleValue>("PersonalBestAttraction", "Weight for particle's pull towards its personal best soution (phi_p).", new DoubleValue(-0.01)));
       Parameters.Add(new ValueParameter<DoubleValue>("NeighborBestAttraction", "Weight for pull towards the neighborhood best solution or global best solution in case of a totally connected topology (phi_g).", new DoubleValue(3.7)));
@@ -306 +306 @@
         updater.ValueParameter.ActualName = "CurrentInertia";
         updater.StartValueParameter.Value = new DoubleValue(1);
-        updater.EndValueParameter.Value = new DoubleValue(double.Epsilon);
+        updater.EndValueParameter.Value = new DoubleValue(1E-10);
       }
     }