Changeset 15479 for branches/Weighted TSNE/3.4/TSNE/TSNEAlgorithm.cs

Timestamp:

11/20/17 15:29:53 (6 years ago)

Author:

bwerth

Message:

#2850 worked on weighted tSNE

File:

• branches/Weighted TSNE/3.4/TSNE/TSNEAlgorithm.cs (modified) (4 diffs)

branches/Weighted TSNE/3.4/TSNE/TSNEAlgorithm.cs

@@ -29 +29 @@
 using HeuristicLab.Core;
 using HeuristicLab.Data;
-using HeuristicLab.Encodings.RealVectorEncoding;
 using HeuristicLab.Optimization;
 using HeuristicLab.Parameters;
@@ -87 +86 @@
     #region Parameter properties
     public IFixedValueParameter<DoubleValue> PerplexityParameter {
-      get { return Parameters[PerplexityParameterName] as IFixedValueParameter<DoubleValue>; }
+      get { return (IFixedValueParameter<DoubleValue>) Parameters[PerplexityParameterName]; }
     }
     public IFixedValueParameter<PercentValue> ThetaParameter {
-      get { return Parameters[ThetaParameterName] as IFixedValueParameter<PercentValue>; }
+      get { return (IFixedValueParameter<PercentValue>) Parameters[ThetaParameterName]; }
     }
     public IFixedValueParameter<IntValue> NewDimensionsParameter {
-      get { return Parameters[NewDimensionsParameterName] as IFixedValueParameter<IntValue>; }
+      get { return (IFixedValueParameter<IntValue>) Parameters[NewDimensionsParameterName]; }
     }
     public IConstrainedValueParameter<IDistance<double[]>> DistanceFunctionParameter {
-      get { return Parameters[DistanceFunctionParameterName] as IConstrainedValueParameter<IDistance<double[]>>; }
+      get { return (IConstrainedValueParameter<IDistance<double[]>>) Parameters[DistanceFunctionParameterName]; }
     }
     public IFixedValueParameter<IntValue> MaxIterationsParameter {
-      get { return Parameters[MaxIterationsParameterName] as IFixedValueParameter<IntValue>; }
+      get { return (IFixedValueParameter<IntValue>) Parameters[MaxIterationsParameterName]; }
     }
     public IFixedValueParameter<IntValue> StopLyingIterationParameter {
-      get { return Parameters[StopLyingIterationParameterName] as IFixedValueParameter<IntValue>; }
+      get { return (IFixedValueParameter<IntValue>) Parameters[StopLyingIterationParameterName]; }
     }
     public IFixedValueParameter<IntValue> MomentumSwitchIterationParameter {
-      get { return Parameters[MomentumSwitchIterationParameterName] as IFixedValueParameter<IntValue>; }
+      get { return (IFixedValueParameter<IntValue>) Parameters[MomentumSwitchIterationParameterName]; }
     }
     public IFixedValueParameter<DoubleValue> InitialMomentumParameter {
-      get { return Parameters[InitialMomentumParameterName] as IFixedValueParameter<DoubleValue>; }
+      get { return (IFixedValueParameter<DoubleValue>) Parameters[InitialMomentumParameterName]; }
     }
     public IFixedValueParameter<DoubleValue> FinalMomentumParameter {
-      get { return Parameters[FinalMomentumParameterName] as IFixedValueParameter<DoubleValue>; }
+      get { return (IFixedValueParameter<DoubleValue>) Parameters[FinalMomentumParameterName]; }
     }
     public IFixedValueParameter<DoubleValue> EtaParameter {
-      get { return Parameters[EtaParameterName] as IFixedValueParameter<DoubleValue>; }
+      get { return (IFixedValueParameter<DoubleValue>) Parameters[EtaParameterName]; }
     }
     public IFixedValueParameter<BoolValue> SetSeedRandomlyParameter {
-      get { return Parameters[SetSeedRandomlyParameterName] as IFixedValueParameter<BoolValue>; }
+      get { return (IFixedValueParameter<BoolValue>) Parameters[SetSeedRandomlyParameterName]; }
     }
     public IFixedValueParameter<IntValue> SeedParameter {
-      get { return Parameters[SeedParameterName] as IFixedValueParameter<IntValue>; }
+      get { return (IFixedValueParameter<IntValue>) Parameters[SeedParameterName]; }
     }
     public IConstrainedValueParameter<StringValue> ClassesNameParameter {
-      get { return Parameters[ClassesNameParameterName] as IConstrainedValueParameter<StringValue>; }
+      get { return (IConstrainedValueParameter<StringValue>) Parameters[ClassesNameParameterName]; }
     }
     public IFixedValueParameter<BoolValue> NormalizationParameter {
-      get { return Parameters[NormalizationParameterName] as IFixedValueParameter<BoolValue>; }
+      get { return (IFixedValueParameter<BoolValue>) Parameters[NormalizationParameterName]; }
     }
     public IFixedValueParameter<BoolValue> RandomInitializationParameter {
-      get { return Parameters[RandomInitializationParameterName] as IFixedValueParameter<BoolValue>; }
+      get { return (IFixedValueParameter<BoolValue>) Parameters[RandomInitializationParameterName]; }
     }
     public IFixedValueParameter<IntValue> UpdateIntervalParameter {
-      get { return Parameters[UpdateIntervalParameterName] as IFixedValueParameter<IntValue>; }
+      get { return (IFixedValueParameter<IntValue>) Parameters[UpdateIntervalParameterName]; }
     }
     #endregion
@@ -336 +335 @@
     private void OnColumnsChanged(object sender, EventArgs e) {
       if (Problem == null || Problem.ProblemData == null || Problem.ProblemData.Dataset == null || !Parameters.ContainsKey(DistanceFunctionParameterName)) return;
-      DistanceFunctionParameter.ValidValues.OfType<WeightedEuclideanDistance>().Single().Weights = new RealVector(Problem.ProblemData.AllowedInputVariables.Select(x => 1.0).ToArray());
+      DistanceFunctionParameter.ValidValues.OfType<WeightedEuclideanDistance>().Single().Weights = new DoubleArray(Problem.ProblemData.AllowedInputVariables.Select(x => 1.0).ToArray());
     }
 
@@ -531 +530 @@
 
     private static Color ConvertTotalToRgb(double low, double high, double cell) {
+      var colorGradient = ColorGradient.Colors;
       var range = high - low;
-      var h = cell / range;
-      return HsVtoRgb(h * 0.5, 1.0f, 1.0f);
-    }
-
-    //taken from https://stackoverflow.com/a/17099130
-    private static Color HsVtoRgb(double hue, double saturation, double value) {
-      while (hue > 1.0) { hue -= 1.0; }
-      while (hue < 0.0) { hue += 1.0; }
-      while (saturation > 1.0) { saturation -= 1.0; }
-      while (saturation < 0.0) { saturation += 1.0; }
-      while (value > 1.0) { value -= 1.0; }
-      while (value < 0.0) { value += 1.0; }
-      if (hue > 0.999) { hue = 0.999; }
-      if (hue < 0.001) { hue = 0.001; }
-      if (saturation > 0.999) { saturation = 0.999; }
-      if (saturation < 0.001) { return Color.FromArgb((int) (value * 255.0), (int) (value * 255.0), (int) (value * 255.0)); }
-      if (value > 0.999) { value = 0.999; }
-      if (value < 0.001) { value = 0.001; }
-
-      var h6 = hue * 6.0;
-      if (h6.IsAlmost(6.0)) { h6 = 0.0; }
-      var ihue = (int) h6;
-      var p = value * (1.0 - saturation);
-      var q = value * (1.0 - saturation * (h6 - ihue));
-      var t = value * (1.0 - saturation * (1.0 - (h6 - ihue)));
-      switch (ihue) {
-        case 0:
-          return Color.FromArgb((int) (value * 255), (int) (t * 255), (int) (p * 255));
-        case 1:
-          return Color.FromArgb((int) (q * 255), (int) (value * 255), (int) (p * 255));
-        case 2:
-          return Color.FromArgb((int) (p * 255), (int) (value * 255), (int) (t * 255));
-        case 3:
-          return Color.FromArgb((int) (p * 255), (int) (q * 255), (int) (value * 255));
-        case 4:
-          return Color.FromArgb((int) (t * 255), (int) (p * 255), (int) (value * 255));
-        default:
-          return Color.FromArgb((int) (value * 255), (int) (p * 255), (int) (q * 255));
-      }
+      var h = cell / range * colorGradient.Count;
+      return colorGradient[(int) h];
     }
     #endregion