Changeset 12868 for trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GradientBoostedTrees/RegressionTreeModel.cs

Timestamp:

08/17/15 16:11:47 (9 years ago)

Author:

gkronber

Message:

#2450: introduced surrogate for GBT-models which recalculates the actual model on demand to improve persistence of GBT solutions

File:

• trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GradientBoostedTrees/RegressionTreeModel.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GradientBoostedTrees/RegressionTreeModel.cs

@@ -82 +82 @@
     [Storable]
     // to prevent storing the references to data caches in nodes
+    // seemingly it is bad (performance-wise) to persist tuples (tuples are used as keys in a dictionary) TODO
     private Tuple<string, double, int, int>[] SerializedTree {
       get { return tree.Select(t => Tuple.Create(t.VarName, t.Val, t.LeftIdx, t.RightIdx)).ToArray(); }