public void SOM_6_columns_iris_0()
{
InitData_dataset_iris();
//Split last column away from _trainingData
double[][] newTrainingData = ArrayManipulation.RemoveLastColumn2D(_trainingData);
string [] values = Conversion.ConvertToStringArray(ArrayManipulation.GetLastColAs1DArray(_trainingData));
string[] newAttributeHeaders = ArrayManipulation.RemoveLastColumn1D(_attributeHeaders);
BuildSelfOrganizingMap build = new BuildSelfOrganizingMap();
build.SetParameters(4, 4);//, .1, 100, 3);
ModelSelfOrganizingMap model =
(ModelSelfOrganizingMap)build.BuildModel(newTrainingData, newAttributeHeaders);
values = Conversion.ReplaceWithString1D(values, "0", "setosa");
values = Conversion.ReplaceWithString1D(values, "1", "versicolor");
values = Conversion.ReplaceWithString1D(values, "2", "virginica");
string somMap = model.GetPrintedSOMMapWithNameIds(newTrainingData,
values);
//string valueCompare = "versicolor versicolor setosa setosa \r\n" +
// "virginica versicolor versicolor setosa \r\n" +
// "virginica virginica virginica virginica \r\n" +
// "virginica virginica virginica virginica";
//Using Random init weights is leading to different structure
//However the following line should always be there
Assert.IsTrue(somMap.Contains("virginica virginica virginica virginica"));
}
public void SOM_2_columns_1_category_0_name_id()
{
InitData_dataset_2_rows_1_category();
BuildSelfOrganizingMap build = new BuildSelfOrganizingMap();
build.SetParameters(2, 2, .1, 100, 3);
ModelSelfOrganizingMap model =
(ModelSelfOrganizingMap)build.BuildModel(_trainingData, _attributeHeaders, _indexTargetAttribute);
string somMap = model.GetPrintedSOMMapWithNameIds(_trainingData,
new string[] { "A", "B" });
Assert.AreEqual(somMap, "B B \r\nB B \r\n");
}
public void SOM_2_columns_1_category_0()
{
InitData_dataset_2_rows_1_category();
BuildSelfOrganizingMap build = new BuildSelfOrganizingMap();
build.SetParameters(2, 2, .9, 100);
ModelSelfOrganizingMap model =
(ModelSelfOrganizingMap)build.BuildModel(_trainingData, _attributeHeaders, _indexTargetAttribute);
//Compare Weights
String somPrint = model.GetPrintedSOMMap().ToString();
Assert.AreEqual(somPrint, "1 1 \r\n1 1 \r\n1 1 \r\n1 1 \r\n");
//All weights should be same
Assert.IsTrue(SupportFunctions.DoubleCompare(model.SomMap[0][0].GetWeight(0), model.SomMap[0][0].GetWeight(1)));
Assert.IsTrue(SupportFunctions.DoubleCompare(model.SomMap[0][0].GetWeight(0), model.SomMap[1][0].GetWeight(1)));
Assert.IsTrue(SupportFunctions.DoubleCompare(model.SomMap[0][0].GetWeight(0), model.SomMap[0][1].GetWeight(1)));
Assert.IsTrue(SupportFunctions.DoubleCompare(model.SomMap[0][0].GetWeight(0), model.SomMap[1][1].GetWeight(1)));
}