Changeset 11363 for branches/SimSharp/HeuristicLab.Problems.Programmable/3.3/SingleObjectiveScript.cs

Timestamp:

09/15/14 10:23:34 (10 years ago)

Author:

abeham

Message:

#2174:

• Removed SimSharp reference (not the purpose of this branch anymore)
• Fixed bugs regarding parameter names when no parameter have been defined
• Added a method to the problem definition to retrieve a neighborhood solution
  • Programmable problem now works with LocalSearch and SimulatedAnnealing

File:

• branches/SimSharp/HeuristicLab.Problems.Programmable/3.3/SingleObjectiveScript.cs (modified) (2 diffs)

branches/SimSharp/HeuristicLab.Problems.Programmable/3.3/SingleObjectiveScript.cs

@@ -34 +34 @@
     protected SingleObjectiveScript(SingleObjectiveScript original, Cloner cloner)
       : base(original, cloner) { }
-    public SingleObjectiveScript() { }
+
+    public SingleObjectiveScript() {
+      Code = CodeTemplate;
+    }
 
     public override IDeepCloneable Clone(Cloner cloner) {
@@ -78 +81 @@
   }
 
+  public IEnumerable<ParameterVector> GetNeighbors(IRandom random, ParameterVector vector) {
+    // Create new vectors, based on the given one that represent small changes
+    // This method is only called from move-based algorithms (LocalSearch, SimulatedAnnealing, etc.)
+    while (true) {
+      var neighbor = (ParameterVector)vector.Clone();
+      //e.g. make a bit flip in a binary parameter
+      //var bIndex = random.Next(neighbor.Binary(""b"").Length);
+      //neighbor.Binary(""b"")[bIndex] = !neighbor.Binary(""b"")[bIndex];
+      yield return neighbor;
+    }
+  }
+
   // implement further classes and methods
 }";