Changeset 16263 for trunk/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Analyzers

Timestamp:

10/30/18 13:08:01 (6 years ago)

Author:

bburlacu

Message:

#2950: Refactor hashing to use unsigned long for hashes. Implement new DiversityPreservingCrossover which prevents subtrees with the same hash value from being swapped.

File:

• trunk/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Analyzers/SymbolicDataAnalysisBuildingBlockAnalyzer.cs (modified) (3 diffs)

trunk/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Analyzers/SymbolicDataAnalysisBuildingBlockAnalyzer.cs

@@ -41 +41 @@
     private const string SimplifyTreesParameterName = "SimplifyTrees";
 
-    private Dictionary<int, DataRow> hashToRow = new Dictionary<int, DataRow>();
+    private Dictionary<ulong, DataRow> hashToRow = new Dictionary<ulong, DataRow>();
 
     #region parameters
@@ -66 +66 @@
       base.InitializeState();
 
-      hashToRow = new Dictionary<int, DataRow>();
+      hashToRow = new Dictionary<ulong, DataRow>();
     }
 
@@ -104 +104 @@
       var simplify = SimplifyTrees.Value;
 
-      var expressions = new Dictionary<int, string>();
-      var expressionCounts = new Dictionary<int, int>();
+      var expressions = new Dictionary<ulong, string>();
+      var expressionCounts = new Dictionary<ulong, int>();
 
       int totalCount = 0; // total number of examined subtrees