private async void BtnGenerate_Click(object obj)
{
IsBtnGenerateEnable = false;
IsBtnResolveEnable = false;
ForestGrowParameters p = new ForestGrowParameters
{
ExportDirectoryPath = ExportFolder,
ExportToJson = true,
ResolutionFeatureName = ResolutionFeatureName,
ItemSubsetCountRatio = TrainingSubsetCountRatio,
TrainingDataPath = TrainingSet,
MaxItemCountInCategory = MaxNumberOfTainingItemsInCategory,
TreeCount = NumberOfTrees,
SplitMode = SplitMode.GINI
};
if (_forest == null)
{
_forest = ForestFactory.Create();
_forest.TreeBuildComplete += _forest_TreeBuildComplete;
_forest.ForestGrowComplete += _forest_ForestGrowComplete;
}
try
{
int x = await _forest.GrowAsync(p);
//int x = _forest.Grow(p);
}
catch (Exception ex)
{
}
}
public void Grow_TrainingDataXlsx_Gini()
{
// arrange
IForest forest = new Forest();
ForestGrowParameters parameters = new ForestGrowParameters
{
ExportDirectoryPath = @"temp\cross-gini",
ExportToJson = true,
ResolutionFeatureName = "Z",
ItemSubsetCountRatio = 0.3f,
TrainingDataPath = @"data\test-3x1000-cross.xlsx",
MaxItemCountInCategory = 10,
TreeCount = 50,
SplitMode = SplitMode.GINI
};
ItemNumerical item1 = ItemNumerical.Create();
item1.AddValue("X", 1.1);
item1.AddValue("Y", 2.1);
item1.AddValue("Z", 0);
ItemNumerical item2 = ItemNumerical.Create();
item2.AddValue("X", 1.9);
item2.AddValue("Y", 3.1);
item2.AddValue("Z", 0);
// act
int treeCount = forest.Grow(parameters);
var d1 = Math.Round(forest.Resolve(item1), 0);
var d2 = Math.Round(forest.Resolve(item2), 0);
// assert
Assert.AreEqual(50, treeCount);
Assert.AreEqual(2, d1);
Assert.AreEqual(1, d2);
}
public int Grow(ForestGrowParameters growParameters)
{
if (growParameters == null)
{
throw new Exception();
}
int qty = 0;
switch (growParameters.SplitMode)
{
case SplitMode.GINI:
_splitter = new SplitterGini();
break;
case SplitMode.RSS:
_splitter = new SplitterRss();
break;
default:
_splitter = new SplitterRss();
break;
}
InitializeItemSet(growParameters.TrainingDataPath);
qty = GenerateTreesTPL(
growParameters.TreeCount,
growParameters.ResolutionFeatureName,
growParameters.MaxItemCountInCategory,
growParameters.ItemSubsetCountRatio);
if (growParameters.ExportToJson)
{
ExportToJsonTPL(growParameters.ExportDirectoryPath);
}
return(qty);
}
public async Task <int> GrowAsync(ForestGrowParameters growParameters)
{
return(await Task <int> .Factory.StartNew(() => { return Grow(growParameters); }));
}