Changeset 12026

Timestamp:

02/17/15 16:04:58 (10 years ago)

Author:

gkronber

Message:

#2283: fix in generic function approximation grammar policy (constant alpha value of 0.01)

File:

• branches/HeuristicLab.Problems.GrammaticalOptimization/HeuristicLab.Algorithms.GrammaticalOptimization/SequentialDecisionPolicies/GenericFunctionApproximationGrammarPolicy.cs (modified) (1 diff)

branches/HeuristicLab.Problems.GrammaticalOptimization/HeuristicLab.Algorithms.GrammaticalOptimization/SequentialDecisionPolicies/GenericFunctionApproximationGrammarPolicy.cs

@@ -129 +129 @@
       double delta = reward - GetValue(state);
       foreach (var feature in problem.GetFeatures(state)) {
-        featureTries[feature.Id] = GetFeatureTries(feature.Id) + 1;
-        Debug.Assert(GetFeatureTries(feature.Id) >= 1);
-        double alpha = 1.0 / GetFeatureTries(feature.Id);
-        alpha = Math.Max(alpha, 0.001);
+        //featureTries[feature.Id] = GetFeatureTries(feature.Id) + 1;
+        //Debug.Assert(GetFeatureTries(feature.Id) >= 1);
+        //double alpha = 1.0 / GetFeatureTries(feature.Id);
+        //alpha = Math.Max(alpha, 0.001);
+        var alpha = 0.01;
 
         double w;