Changeset 16092 for branches/2839_HiveProjectManagement/HeuristicLab.Algorithms.DataAnalysis

Timestamp:

08/29/18 09:44:07 (6 years ago)

Author:

jkarder

Message:

#2839: merged [16057-16091/trunk] into branch

Location:

branches/2839_HiveProjectManagement

Files:

• . (modified) (1 prop)
• HeuristicLab.Algorithms.DataAnalysis (modified) (1 prop)
• HeuristicLab.Algorithms.DataAnalysis/3.4 (modified) (1 prop)
• HeuristicLab.Algorithms.DataAnalysis/3.4/GBM/GradientBoostingRegressionAlgorithm.cs (modified) (1 diff)
• HeuristicLab.Algorithms.DataAnalysis/3.4/GradientBoostedTrees/GradientBoostedTreesAlgorithm.cs (modified) (1 diff)
• HeuristicLab.Algorithms.DataAnalysis/3.4/NearestNeighbour/NearestNeighbourModel.cs (modified) (1 diff)
• HeuristicLab.Algorithms.DataAnalysis/3.4/NonlinearRegression/NonlinearRegression.cs (modified) (1 diff)
• HeuristicLab.Algorithms.DataAnalysis/3.4/RandomForest/RandomForestClassification.cs (modified) (1 diff)
• HeuristicLab.Algorithms.DataAnalysis/3.4/RandomForest/RandomForestRegression.cs (modified) (1 diff)
• HeuristicLab.Algorithms.DataAnalysis/3.4/TSNE/TSNEAlgorithm.cs (modified) (1 diff)

branches/2839_HiveProjectManagement/HeuristicLab.Algorithms.DataAnalysis/3.4/GBM/GradientBoostingRegressionAlgorithm.cs

@@ -210 +210 @@
     protected override void Run(CancellationToken cancellationToken) {
       // Set up the algorithm
-      if (SetSeedRandomly) Seed = new System.Random().Next();
+      if (SetSeedRandomly) Seed = RandomSeedGenerator.GetSeed();
       var rand = new MersenneTwister((uint)Seed);
 

branches/2839_HiveProjectManagement/HeuristicLab.Algorithms.DataAnalysis/3.4/GradientBoostedTrees/GradientBoostedTreesAlgorithm.cs

@@ -186 +186 @@
     protected override void Run(CancellationToken cancellationToken) {
       // Set up the algorithm
-      if (SetSeedRandomly) Seed = new System.Random().Next();
+      if (SetSeedRandomly) Seed = Random.RandomSeedGenerator.GetSeed();
 
       // Set up the results display

branches/2839_HiveProjectManagement/HeuristicLab.Algorithms.DataAnalysis/3.4/NearestNeighbour/NearestNeighbourModel.cs

@@ -130 +130 @@
           // automatic determination of weights (all features should have variance = 1)
           this.weights = this.allowedInputVariables
-            .Select(name => 1.0 / dataset.GetDoubleValues(name, rows).StandardDeviationPop())
+            .Select(name => {
+              var pop = dataset.GetDoubleValues(name, rows).StandardDeviationPop();
+              return  pop.IsAlmost(0) ? 1.0 : 1.0/pop;
+            })
             .Concat(new double[] { 1.0 }) // no scaling for target variable
             .ToArray();

branches/2839_HiveProjectManagement/HeuristicLab.Algorithms.DataAnalysis/3.4/NonlinearRegression/NonlinearRegression.cs

@@ -186 +186 @@
         qualityTable.Rows.Add(testRMSERow);
         Results.Add(new Result(qualityTable.Name, qualityTable.Name + " for all restarts", qualityTable));
-        if (SetSeedRandomly) Seed = (new System.Random()).Next();
+        if (SetSeedRandomly) Seed = RandomSeedGenerator.GetSeed();
         var rand = new MersenneTwister((uint)Seed);
         bestSolution = CreateRegressionSolution(Problem.ProblemData, ModelStructure, Iterations, ApplyLinearScaling, rand);

branches/2839_HiveProjectManagement/HeuristicLab.Algorithms.DataAnalysis/3.4/RandomForest/RandomForestClassification.cs

@@ -135 +135 @@
     protected override void Run(CancellationToken cancellationToken) {
       double rmsError, relClassificationError, outOfBagRmsError, outOfBagRelClassificationError;
-      if (SetSeedRandomly) Seed = new System.Random().Next();
+      if (SetSeedRandomly) Seed = Random.RandomSeedGenerator.GetSeed();
 
       var model = CreateRandomForestClassificationModel(Problem.ProblemData, NumberOfTrees, R, M, Seed, out rmsError, out relClassificationError, out outOfBagRmsError, out outOfBagRelClassificationError);

branches/2839_HiveProjectManagement/HeuristicLab.Algorithms.DataAnalysis/3.4/RandomForest/RandomForestRegression.cs

@@ -134 +134 @@
     protected override void Run(CancellationToken cancellationToken) {
       double rmsError, avgRelError, outOfBagRmsError, outOfBagAvgRelError;
-      if (SetSeedRandomly) Seed = new System.Random().Next();
+      if (SetSeedRandomly) Seed = Random.RandomSeedGenerator.GetSeed();
       var model = CreateRandomForestRegressionModel(Problem.ProblemData, NumberOfTrees, R, M, Seed,
         out rmsError, out avgRelError, out outOfBagRmsError, out outOfBagAvgRelError);

branches/2839_HiveProjectManagement/HeuristicLab.Algorithms.DataAnalysis/3.4/TSNE/TSNEAlgorithm.cs

@@ -275 +275 @@
       if (wdist != null) wdist.Initialize(problemData);
       if (state == null) {
-        if (SetSeedRandomly) Seed = new System.Random().Next();
+        if (SetSeedRandomly) Seed = RandomSeedGenerator.GetSeed();
         var random = new MersenneTwister((uint)Seed);
         var dataset = problemData.Dataset;