Changeset 3172 for trunk/sources/HeuristicLab.Encodings.RealVectorEncoding/3.3/Crossovers/SimulatedBinaryCrossover.cs

Timestamp:

03/22/10 14:16:25 (14 years ago)

Author:

abeham

Message:

Fixed SimulatedBinaryCrossover and name of MichalewiczNonUniformAllPositionsManipulator #890

File:

• trunk/sources/HeuristicLab.Encodings.RealVectorEncoding/3.3/Crossovers/SimulatedBinaryCrossover.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Encodings.RealVectorEncoding/3.3/Crossovers/SimulatedBinaryCrossover.cs

@@ -78 +78 @@
             beta = Math.Pow(2 * u, 1.0 / (contiguity.Value + 1));
           } else if (u > 0.5) { // otherwise perform an expanding crossover
-            beta = Math.Pow(1.0 / (2 - 2 * u), (contiguity.Value + 1));
+            beta = Math.Pow(0.5 / (1.0 - u), 1.0 / (contiguity.Value + 1));
           } else if (u == 0.5)
             beta = 1;