public MLModel(MLFeature[] features, string modelName)
{
this.modelName = modelName;
DataSetClass = MLHelper.GenerateDataSetClass(features, modelName, $"{modelName}Namespace");
LabelClass = MLHelper.GenerateLabelClass($"{modelName}Label", $"{modelName}LabelNamespace");
this.features = features;
}
public object Predict(object example)
{
var predictionEngine = MLHelper.GetPredictionEngine(TypesGenerator, Model);
var methodInfo = predictionEngine.GetType().GetMethod("Predict", new[] { DataSetClass.ClassType });
var prediction = MLHelper.Predict(predictionEngine, DataSetClass, example);
return(prediction);
}
public TransformerChain <Microsoft.ML.Transforms.KeyToValueMappingTransformer> Train(MLDataRow[] dataSetRows, string labelFieldName)
{
this.labelFieldName = labelFieldName;
List <object> generatedDataSet = CreateDataSet(dataSetRows);
TypesGenerator = MLHelper.CreateTypesGenarator(DataSetClass, LabelClass);
IDataView trainingDataView = MLHelper.GetDataView(TypesGenerator, generatedDataSet);
trainingDataView.Schema.ToList().Add(new DataViewSchema.Column());
Model = Train(trainingDataView, labelFieldName);
return(Model);
}