public static IEstimator <ITransformer> BuildAndTrainModel(IDataView trainingDataView, IEstimator <ITransformer> pipeline)
{
void CheckPrediction()
{
GitHubIssue issue = new GitHubIssue()
{
Title = "WebSockets communication is slow in my machine",
Description = "The WebSockets communication used under the covers by SignalR looks like is going slow in my development machine.."
};
var prediction = _predEngine.Predict(issue);
Console.WriteLine($"=============== Single Prediction just-trained-model - Result: {prediction.Area} ===============");
}
var trainingPipeline = pipeline
.Append(_mlContext.MulticlassClassification.Trainers.SdcaMaximumEntropy("Label", "Features"))
.Append(_mlContext.Transforms.Conversion.MapKeyToValue("PredictedLabel"));
_trainedModel = trainingPipeline.Fit(trainingDataView);
_predEngine = _mlContext.Model.CreatePredictionEngine <GitHubIssue, IssuePrediction>(_trainedModel);
CheckPrediction();
return(trainingPipeline);
}
private static void PredictIssue()
{
ITransformer loadedModel = _mlContext.Model.Load(_modelPath, out var modelInputSchema);
GitHubIssue singleIssue = new GitHubIssue()
{
Title = "Entity Framework crashes",
Description = "When connecting to the database, EF is crashing"
};
_predEngine = _mlContext.Model.CreatePredictionEngine <GitHubIssue, IssuePrediction>(loadedModel);
var prediction = _predEngine.Predict(singleIssue);
Console.WriteLine($"=============== Single Prediction - Result: {prediction.Area} ===============");
}
