Changeset 11732 for branches/HeuristicLab.Problems.GrammaticalOptimization/HeuristicLab.Algorithms.Bandits/Policies/RandomPolicy.cs

Timestamp:

01/07/15 09:21:46 (9 years ago)

Author:

gkronber

Message:

#2283: refactoring and bug fixes

File:

• branches/HeuristicLab.Problems.GrammaticalOptimization/HeuristicLab.Algorithms.Bandits/Policies/RandomPolicy.cs (modified) (1 diff)

branches/HeuristicLab.Problems.GrammaticalOptimization/HeuristicLab.Algorithms.Bandits/Policies/RandomPolicy.cs

@@ -8 +8 @@
 
 namespace HeuristicLab.Algorithms.Bandits {
-  public class RandomPolicy : BanditPolicy {
-    private readonly Random random;
+  public class RandomPolicy : IPolicy {
 
-    public RandomPolicy(Random random, int numActions)
-      : base(numActions) {
-      this.random = random;
-    }
-
-    public override int SelectAction() {
-      Debug.Assert(Actions.Any());
-      return Actions.SelectRandom(random);
-    }
-    public override void UpdateReward(int action, double reward) {
-      // do nothing
-    }
-    public override void PrintStats() {
-      Console.WriteLine("Random");
-    }
     public override string ToString() {
       return "RandomPolicy";
     }
+
+    public int SelectAction(Random random, IEnumerable<IPolicyActionInfo> actionInfos) {
+      return actionInfos
+        .Select((a, i) => Tuple.Create(a, i))
+        .Where(p => !p.Item1.Disabled)
+        .SelectRandom(random).Item2;
+    }
+
+    public IPolicyActionInfo CreateActionInfo() {
+      return new EmptyPolicyActionInfo();
+    }
   }
 }