Changeset 8397 for trunk/sources

Timestamp:

08/02/12 17:39:37 (12 years ago)

Author:

gkronber

Message:

#1902 added random seed parameters for BFGS

File:

• trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GaussianProcess/Lbfgs.cs (modified) (4 diffs)

trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GaussianProcess/Lbfgs.cs

@@ -59 +59 @@
     private const string MaxIterationsParameterName = "MaxIterations";
     private const string ApproximateGradientsParameterName = "ApproximateGradients";
+    private const string SeedParameterName = "Seed";
+    private const string SetSeedRandomlyParameterName = "SetSeedRandomly";
 
     #region parameter properties
     public IValueParameter<IntValue> MaxIterationsParameter {
       get { return (IValueParameter<IntValue>)Parameters[MaxIterationsParameterName]; }
+    }
+    public IValueParameter<IntValue> SeedParameter {
+      get { return (IValueParameter<IntValue>)Parameters[SeedParameterName]; }
+    }
+    public IValueParameter<BoolValue> SetSeedRandomlyParameter {
+      get { return (IValueParameter<BoolValue>)Parameters[SetSeedRandomlyParameterName]; }
     }
     #endregion
@@ -70 +78 @@
       get { return MaxIterationsParameter.Value.Value; }
     }
+    public int Seed { get { return SeedParameter.Value.Value; } set { SeedParameter.Value.Value = value; } }
+    public bool SetSeedRandomly { get { return SetSeedRandomlyParameter.Value.Value; } set { SetSeedRandomlyParameter.Value.Value = value; } }
     #endregion
+
     [StorableConstructor]
     private LbfgsAlgorithm(bool deserializing) : base(deserializing) { }
@@ -84 +95 @@
 
       Parameters.Add(new ValueParameter<IntValue>(MaxIterationsParameterName, "The maximal number of iterations for.", new IntValue(20)));
+      Parameters.Add(new ValueParameter<IntValue>(SeedParameterName, "The random seed used to initialize the new pseudo random number generator.", new IntValue(0)));
+      Parameters.Add(new ValueParameter<BoolValue>(SetSeedRandomlyParameterName, "True if the random seed should be set to a random value, otherwise false.", new BoolValue(true)));
       Parameters.Add(new ValueParameter<BoolValue>(ApproximateGradientsParameterName, "Indicates that gradients should be approximated.", new BoolValue(true)));
       Parameters[ApproximateGradientsParameterName].Hidden = true; // should not be changed
@@ -99 +112 @@
       OperatorGraph.InitialOperator = randomCreator;
 
+      randomCreator.SeedParameter.ActualName = SeedParameterName;
+      randomCreator.SeedParameter.Value = null;
+      randomCreator.SetSeedRandomlyParameter.ActualName = SetSeedRandomlyParameterName;
+      randomCreator.SetSeedRandomlyParameter.Value = null;
       randomCreator.Successor = solutionCreator;