Changeset 18086 for branches/2521_ProblemRefactoring/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Creators/BalancedTreeCreator.cs

Timestamp:

11/19/21 16:07:45 (2 years ago)

Author:

mkommend

Message:

#2521: Merged trunk changes into branch.

File:

• branches/2521_ProblemRefactoring/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Creators/BalancedTreeCreator.cs (modified) (3 diffs)

branches/2521_ProblemRefactoring/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Creators/BalancedTreeCreator.cs

@@ -51 +51 @@
     private void AfterDeserialization() {
       if (!Parameters.ContainsKey(IrregularityBiasParameterName)) {
-        Parameters.Add(new FixedValueParameter<PercentValue>(IrregularityBiasParameterName, new PercentValue(0.0)));
+        Parameters.Add(new FixedValueParameter<PercentValue>(IrregularityBiasParameterName, "Allows to bias tree initialization towards less balanced/regular shapes. Set to 0% for most balanced and 100% for least balanced trees. (default = 0%)", new PercentValue(0.0)));
       }
     }
@@ -106 +106 @@
       var grammar = root.Grammar;
       var minSubtreeCount = grammar.GetMinimumSubtreeCount(root.Symbol);
-      var maxSubtreeCount = grammar.GetMinimumSubtreeCount(root.Symbol);
+      var maxSubtreeCount = grammar.GetMaximumSubtreeCount(root.Symbol);
       var arity = random.Next(minSubtreeCount, maxSubtreeCount + 1);
       int openSlots = arity;
@@ -169 +169 @@
     }
 
-    protected override ISymbolicExpressionTree Create(IRandom random) {
-      var maxLength = MaximumSymbolicExpressionTreeLengthParameter.ActualValue.Value;
-      var maxDepth = MaximumSymbolicExpressionTreeDepthParameter.ActualValue.Value;
-      var grammar = ClonedSymbolicExpressionTreeGrammarParameter.ActualValue;
-      return Create(random, grammar, maxLength, maxDepth);
-    }
-
     #region helpers
     private class NodeInfo {