Changeset 15067 for trunk/sources/HeuristicLab.Encodings.IntegerVectorEncoding/3.3/SimilarityCalculators

Timestamp:

06/26/17 23:13:15 (8 years ago)

Author:

abeham

Message:

#2730:

• Unified implementation of all equality comparers and similarity calculators in BinaryVector, IntegerVector, RealVector, Permutation, and LinearLinkage encodings
• Added Euclidean distance-based similarity calculators for real and integer vectors using a transformation function with scaling parameter

Location:

trunk/sources/HeuristicLab.Encodings.IntegerVectorEncoding/3.3/SimilarityCalculators

Files:

• EuclideanSimilarityCalculator.cs (added)
• HammingSimilarityCalculator.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Encodings.IntegerVectorEncoding/3.3/SimilarityCalculators/HammingSimilarityCalculator.cs

@@ -45 +45 @@
     public static double CalculateSimilarity(IntegerVector left, IntegerVector right) {
       if (left == null || right == null)
-        throw new ArgumentException("Cannot calculate similarity because one or both of the provided scopes is null.");
+        throw new ArgumentException("Cannot calculate similarity because one or both of the provided solutions is null.");
       if (left.Length != right.Length)
         throw new ArgumentException("Cannot calculate similarity because the provided solutions have different lengths.");
-      if (left == right) return 1.0;
+      if (left.Length == 0)
+        throw new ArgumentException("Cannot calculate similarity because solutions are of length 0.");
+      if (ReferenceEquals(left, right)) return 1.0;
 
       double similarity = 0.0;