Changeset 16490

Timestamp:

01/03/19 18:00:19 (6 years ago)

Author:

gkronber

Message:

#2942: added a comment on the handling of weights in the self-matching case

File:

• branches/2942_KNNRegressionClassification/HeuristicLab.Algorithms.DataAnalysis/3.4/NearestNeighbour/NearestNeighbourModel.cs (modified) (1 diff)

branches/2942_KNNRegressionClassification/HeuristicLab.Algorithms.DataAnalysis/3.4/NearestNeighbour/NearestNeighbourModel.cs

@@ -209 +209 @@
         }
         if (selfMatch) {
+          // weights for neighbours are 1/d.
+          // override distances (=0) of exact matches using 1% of the distance of the next closest non-self-match neighbour -> selfmatches weight 100x more than the next closest neighbor.
+          // if all k neighbours are selfmatches then they all have weight 0.01.
           double minDist = dists[0] + 1;
           for (int i = 0; i < numNeighbours; i++) {