static async Task Main(string[] args)
{
try
{
var modelBuilder = new ModelTrainer(
ModelHelpers.GetAssetsPath("data", "tags.tsv"),
ModelHelpers.GetAssetsPath("images"),
ModelHelpers.GetAssetsPath("model", "tensorflow_inception_graph.pb"),
ModelHelpers.GetAssetsPath("model", "imageClassifier.zip"));
await modelBuilder.BuildAndTrain();
var modelEvaluator = new ModelEvaluator(
ModelHelpers.GetAssetsPath("data", "tags.tsv"),
ModelHelpers.GetAssetsPath("images"),
ModelHelpers.GetAssetsPath("model", "imageClassifier.zip"));
await modelEvaluator.Evaluate();
} catch (Exception ex)
{
}
}
static async Task Main(string[] args)
{
var assetsPath = ModelHelpers.GetAssetsPath(@"..\..\..\assets");
var tagsTsv = Path.Combine(assetsPath, "inputs", "data", "tags.tsv");
var imagesFolder = Path.Combine(assetsPath, "inputs", "data");
var imageClassifierZip = Path.Combine(assetsPath, "inputs", "imageClassifier.zip");
try
{
var modelEvaluator = new ModelEvaluator(tagsTsv, imagesFolder, imageClassifierZip);
modelEvaluator.EvaluateStaticApi();
}
catch (Exception ex)
{
ConsoleWriteException(ex.Message);
}
ConsolePressAnyKey();
}
static void Main(string[] args)
{
var trainingDataLocation = @"Data/winequality_white_train.csv";
var testDataLocation = @"Data/winequality_white_test.csv";
var modelEvaluator = new ModelEvaluator();
var perceptronBinaryModel = new ModelBuilder(trainingDataLocation, new AveragedPerceptronBinaryClassifier()).BuildAndTrain();
var perceptronBinaryMetrics = modelEvaluator.Evaluate(perceptronBinaryModel, testDataLocation);
PrintMetrics("Perceptron", perceptronBinaryMetrics);
var fastForestBinaryModel = new ModelBuilder(trainingDataLocation, new FastForestBinaryClassifier()).BuildAndTrain();
var fastForestBinaryMetrics = modelEvaluator.Evaluate(fastForestBinaryModel, testDataLocation);
PrintMetrics("Fast Forest Binary", fastForestBinaryMetrics);
var fastTreeBinaryModel = new ModelBuilder(trainingDataLocation, new FastTreeBinaryClassifier()).BuildAndTrain();
var fastTreeBinaryMetrics = modelEvaluator.Evaluate(fastTreeBinaryModel, testDataLocation);
PrintMetrics("Fast Tree Binary", fastTreeBinaryMetrics);
var linearSvmModel = new ModelBuilder(trainingDataLocation, new LinearSvmBinaryClassifier()).BuildAndTrain();
var linearSvmMetrics = modelEvaluator.Evaluate(linearSvmModel, testDataLocation);
PrintMetrics("Linear SVM", linearSvmMetrics);
var logisticRegressionModel = new ModelBuilder(trainingDataLocation, new LogisticRegressionBinaryClassifier()).BuildAndTrain();
var logisticRegressionMetrics = modelEvaluator.Evaluate(logisticRegressionModel, testDataLocation);
PrintMetrics("Logistic Regression Binary", logisticRegressionMetrics);
var sdcabModel = new ModelBuilder(trainingDataLocation, new StochasticDualCoordinateAscentBinaryClassifier()).BuildAndTrain();
var sdcabMetrics = modelEvaluator.Evaluate(sdcabModel, testDataLocation);
PrintMetrics("Stochastic Dual Coordinate Ascent Binary", logisticRegressionMetrics);
VisualizeTenPredictionsForTheModel(fastForestBinaryModel, testDataLocation);
Console.ReadLine();
}
static async Task Main(string[] args)
{
// Running inside Visual Studio, $SolutionDir/assets is automatically passed as argument
// If you execute from the console, pass as argument the location of the assets folder
// Otherwise, it will search for assets in the executable's folder
var assetsPath = args.Length > 0 ? args[0] : ModelHelpers.GetAssetsPath();
var tagsTsv = Path.Combine(assetsPath, "inputs", "data", "tags.tsv");
var imagesFolder = Path.Combine(assetsPath, "inputs", "data");
var imageClassifierZip = Path.Combine(assetsPath, "outputs", "imageClassifier.zip");
try
{
var modelEvaluator = new ModelEvaluator(tagsTsv, imagesFolder, imageClassifierZip);
await modelEvaluator.Evaluate();
}
catch (Exception ex)
{
Console.WriteLine($"Exception: {ex.Message}");
}
Console.ReadKey();
}
static async Task Main(string[] args)
{
// Running inside Visual Studio, $SolutionDir/assets is automatically passed as argument
// If you execute from the console, pass as argument the location of the assets folder
// Otherwise, it will search for assets in the executable's folder
var assetsPath = args.Length > 0 ? args[0] : ModelHelpers.GetAssetsPath();
var transactionsCsv = Path.Combine(assetsPath, "inputs", "transactions.csv");
var offersCsv = Path.Combine(assetsPath, "inputs", "offers.csv");
var modelZip = Path.Combine(assetsPath, "outputs", "retailClustering.zip");
var plotSvg = Path.Combine(assetsPath, "outputs", "customerSegmentation.svg");
try
{
var modelEvaluator = new ModelEvaluator(transactionsCsv, offersCsv, modelZip, plotSvg);
await modelEvaluator.Evaluate();
} catch (Exception ex)
{
Console.WriteLine($"Exception: {ex.Message}");
}
Console.ReadKey();
}
static async Task Main(string[] args)
{
try
{
if (typeof(TensorFlowTransform) == null)
{
throw new Exception("Tensorflow not loaded correctly");
}
if (typeof(ImageLoaderTransform) == null)
{
throw new Exception("ImageAnalytics not loaded correctly");
}
var modelBuilder = new ModelTrainer(
ModelHelpers.GetAssetsPath("data", "tags.tsv"),
ModelHelpers.GetAssetsPath("images"),
ModelHelpers.GetAssetsPath("model", "tensorflow_inception_graph.pb"),
ModelHelpers.GetAssetsPath("model", "imageClassifier.zip"));
await modelBuilder.BuildAndTrain();
var modelEvaluator = new ModelEvaluator(
ModelHelpers.GetAssetsPath("data", "tags.tsv"),
ModelHelpers.GetAssetsPath("images"),
ModelHelpers.GetAssetsPath("model", "imageClassifier.zip"));
await modelEvaluator.Evaluate();
} catch (Exception ex)
{
Console.WriteLine("InnerException: {0}", ex.InnerException.ToString());
throw;
}
Console.WriteLine("End of process");
Console.ReadKey();
}
/// <summary>
/// Trains a model using the input files
/// </summary>
/// <param name="settings">The trainer settings</param>
/// <param name="workFolderPath">A temp work folder for storing intermediate files</param>
/// <param name="usageFolderPath">The path to the folder of usage files</param>
/// <param name="catalogFilePath">The path to the catalog file</param>
/// <param name="evaluationFolderPath">The path to the evaluation file (optional) </param>
/// <param name="cancellationToken">A cancellation token used to abort the training</param>
private ModelTrainResult TrainModelInternal(IModelTrainerSettings settings, string workFolderPath, string usageFolderPath,
string catalogFilePath, string evaluationFolderPath, CancellationToken cancellationToken)
{
var duration = ModelTraininigDuration.Start();
var result = new ModelTrainResult {
Duration = duration
};
var userIdsIndexMap = new ConcurrentDictionary <string, uint>();
var itemIdsIndexMap = new ConcurrentDictionary <string, uint>();
// parse the catalog file
IList <SarCatalogItem> catalogItems = null;
string[] catalogFeatureNames = null;
if (!string.IsNullOrWhiteSpace(catalogFilePath) && File.Exists(catalogFilePath))
{
// report progress
_progressMessageReportDelegate("Parsing Catalog File");
// create a catalog file parser
var catalogParser = new CatalogFileParser(MaximumParsingErrorsCount, itemIdsIndexMap, _tracer);
// parse the catalog file
result.CatalogFilesParsingReport = catalogParser.ParseCatalogFile(catalogFilePath, cancellationToken,
out catalogItems, out catalogFeatureNames);
// record the catalog parsing duration
duration.SetCatalogParsingDuration();
_tracer.TraceInformation($"Catalog parsing completed in {duration.CatalogParsingDuration.TotalMinutes} minutes");
// get the catalog items count
result.CatalogItemsCount = catalogItems.Count;
// fail the training if parsing had failed or yielded no items
if (!result.CatalogFilesParsingReport.IsCompletedSuccessfuly || !catalogItems.Any())
{
result.CompletionMessage = "Failed to parse catalog file or parsing found no valid items";
_tracer.TraceInformation(result.CompletionMessage);
return(result);
}
// clear the catalog items list if it's not used anymore
if (!settings.EnableColdItemPlacement)
{
catalogItems.Clear();
}
}
// report progress
_progressMessageReportDelegate("Parsing Usage Events Files");
// create a usage events files parser that skips events of unknown item ids (if catalog was provided))
var usageEventsParser = new UsageEventsFilesParser(itemIdsIndexMap, userIdsIndexMap,
MaximumParsingErrorsCount, catalogItems != null, _tracer);
_tracer.TraceInformation("Parsing the usage event files");
IList <SarUsageEvent> usageEvents;
result.UsageFilesParsingReport =
usageEventsParser.ParseUsageEventFiles(usageFolderPath, cancellationToken, out usageEvents);
// record the usage files parsing duration
duration.SetUsageFilesParsingDuration();
_tracer.TraceInformation($"Usage file(s) parsing completed in {duration.UsageFilesParsingDuration.TotalMinutes} minutes");
// fail the training if parsing had failed or yielded no events
if (!result.UsageFilesParsingReport.IsCompletedSuccessfuly || !usageEvents.Any())
{
result.CompletionMessage = "Failed to parse usage file(s) or parsing found no valid items";
_tracer.TraceInformation(result.CompletionMessage);
return(result);
}
_tracer.TraceInformation($"Found {userIdsIndexMap.Count} unique users");
result.UniqueUsersCount = userIdsIndexMap.Count;
_tracer.TraceInformation($"Found {itemIdsIndexMap.Count} unique items");
result.UniqueItemsCount = usageEvents.Select(x => x.ItemId).Distinct().Count();
_tracer.TraceInformation("Extracting the indexed item ids from the item index map");
string[] itemIdsIndex = itemIdsIndexMap.OrderBy(kvp => kvp.Value).Select(kvp => kvp.Key).ToArray();
_tracer.TraceInformation($"Sorting the usage events based on the cooccurrenceUnit unit ({settings.CooccurrenceUnit})");
switch (settings.CooccurrenceUnit)
{
case CooccurrenceUnit.User:
usageEvents = usageEvents.OrderBy(x => x.UserId).ToArray();
break;
case CooccurrenceUnit.Timestamp:
usageEvents = usageEvents.OrderBy(x => x.Timestamp).ThenBy(x => x.UserId).ToArray();
break;
}
_tracer.TraceInformation("Finished sorting usage events.");
Stopwatch storeUserHistoryDuration = null;
Task storeUserHistoryTask = null;
if (settings.EnableUserToItemRecommendations && _userHistoryStore != null)
{
storeUserHistoryDuration = Stopwatch.StartNew();
_tracer.TraceInformation($"Extracting the indexed user ids from the user index map ({userIdsIndexMap.Count:N} users)");
string[] userIdsIndex = userIdsIndexMap.OrderBy(kvp => kvp.Value).Select(kvp => kvp.Key).ToArray();
_tracer.TraceInformation($"Asynchronously starting to store usage events per user (total of {usageEvents.Count:N} items)");
storeUserHistoryTask = Task.Run(() =>
_userHistoryStore.StoreUserHistoryEventsAsync(usageEvents, userIdsIndex, cancellationToken), cancellationToken);
}
// if provided, parse the evaluation usage event files
int evaluationUsageEventsCount = 0;
string parsedEvaluationUsageEventsFilePath = null;
if (!string.IsNullOrWhiteSpace(evaluationFolderPath) && Directory.Exists(evaluationFolderPath))
{
// report progress
_progressMessageReportDelegate("Parsing Evaluation Usage Events Files");
_tracer.TraceInformation("Parsing the evaluation usage event files");
IList <SarUsageEvent> evaluationUsageEvents;
result.EvaluationFilesParsingReport = usageEventsParser.ParseUsageEventFiles(evaluationFolderPath,
cancellationToken, out evaluationUsageEvents);
if (result.EvaluationFilesParsingReport.IsCompletedSuccessfuly)
{
// set the evaluation usage events count
evaluationUsageEventsCount = evaluationUsageEvents.Count;
_tracer.TraceInformation("Storing the parsed usage events for evaluation to reduce memory print");
parsedEvaluationUsageEventsFilePath = Path.Combine(workFolderPath, Path.GetTempFileName());
File.WriteAllLines(parsedEvaluationUsageEventsFilePath,
evaluationUsageEvents.Select(JsonConvert.SerializeObject));
}
else
{
_tracer.TraceWarning("Skipping model evaluation as it failed to parse evaluation usage files.");
}
// record the evaluation usage files parsing duration
duration.SetEvaluationUsageFilesParsingDuration();
_tracer.TraceInformation($"Evaluation usage file(s) parsing completed in {duration.EvaluationUsageFilesParsingDuration.TotalMinutes} minutes");
}
// clear the indices maps as they are no longer needed
userIdsIndexMap.Clear();
itemIdsIndexMap.Clear();
cancellationToken.ThrowIfCancellationRequested();
// report progress
_progressMessageReportDelegate("Core Training");
_tracer.TraceInformation("Training a new model using SAR trainer");
IDictionary <string, double> catalogFeatureWeights;
var sarTrainer = new SarTrainer(_tracer);
IPredictorModel sarModel = sarTrainer.Train(settings, usageEvents, catalogItems, catalogFeatureNames, result.UniqueUsersCount,
result.CatalogItemsCount ?? result.UniqueItemsCount, out catalogFeatureWeights, cancellationToken);
_tracer.TraceInformation("SAR training was completed.");
// create the trained model properties
var modelProperties = new ModelProperties
{
IncludeHistory = settings.AllowSeedItemsInRecommendations,
EnableUserAffinity = settings.EnableUserAffinity,
IsUserToItemRecommendationsSupported = settings.EnableUserToItemRecommendations,
Decay = TimeSpan.FromDays(settings.DecayPeriodInDays),
ReferenceDate = usageEventsParser.MostRecentEventTimestamp,
UniqueUsersCount = result.UniqueUsersCount,
};
// create the trained model
result.Model = new TrainedModel(sarModel, modelProperties, itemIdsIndex);
// set the catalog features weights
result.CatalogFeatureWeights = catalogFeatureWeights;
// record the core training duration
duration.SetTrainingDuration();
// run model evaluation if evaluation usage event are available
if (evaluationUsageEventsCount > 0 && parsedEvaluationUsageEventsFilePath != null)
{
// report progress
_progressMessageReportDelegate("Evaluating Trained Model");
var evaluationUsageEvents = new List <SarUsageEvent>(evaluationUsageEventsCount);
// load the evaluation usage events
using (var reader = new StreamReader(parsedEvaluationUsageEventsFilePath))
{
while (!reader.EndOfStream)
{
evaluationUsageEvents.Add(JsonConvert.DeserializeObject <SarUsageEvent>(reader.ReadLine()));
}
}
_tracer.TraceInformation("Starting model evaluation");
var evaluator = new ModelEvaluator(_tracer);
result.ModelMetrics = evaluator.Evaluate(result.Model, usageEvents, evaluationUsageEvents, cancellationToken);
// record the evaluation duration
duration.SetEvaluationDuration();
}
if (storeUserHistoryTask != null)
{
_tracer.TraceInformation("Waiting for storing of usage events per user (user history) to complete");
if (!storeUserHistoryTask.IsCompleted)
{
_progressMessageReportDelegate("Storing User History");
// set the reporting flag to true so usage history upload progress will get reported to model status
_reportUserHistoryProgress = true;
}
try
{
storeUserHistoryTask.Wait(cancellationToken);
storeUserHistoryDuration?.Stop();
duration.StoringUserHistoryDuration = storeUserHistoryDuration?.Elapsed;
_tracer.TraceInformation(
$"Storing usage events per user (user history) to complete after {duration.StoringUserHistoryDuration.Value.TotalMinutes} minutes");
}
catch (AggregateException ex)
{
var exception = new Exception("Exception while trying to store user history", ex);
_tracer.TraceError(exception.ToString());
throw exception;
}
}
// stop measuring the duration and record the total duration
duration.Stop();
// return the train result
result.CompletionMessage = "Model Training Completed Successfully";
return(result);
}
static void Main(string[] args)
{
try
{
ArgCollection argCollection = ArgCollection.GetInstance(args);
if (argCollection.ExtractOptionalFlag("help"))
{
Console.WriteLine("");
Console.WriteLine(UsageMessage);
Console.WriteLine(HelpMessage);
return;
}
string optimizerName = argCollection.ExtractOptional <string>("optimizer", "BrentThenGrid");
string keepTestName = argCollection.ExtractOptional <string>("keepTest", "AlwaysKeep");
string skipRowIndexFileNameOrNull = argCollection.ExtractOptional <string>("skipRowIndexFile", null);
argCollection.CheckNoMoreOptions();
string treeFileName = argCollection.ExtractNext <string>("treeFile");
string predictorFileName = argCollection.ExtractNext <string>("predictorFile");
string targetFileName = argCollection.ExtractNext <string>("targetFile");
string leafDistributionName = argCollection.ExtractNext <string>("leafDistribution");
string nullDataGeneratorName = argCollection.ExtractNext <string>("nullDataGenerator");
string niceName = argCollection.ExtractNext <string>("niceName");
string outputDirectory = argCollection.ExtractNext <string>("outputDirectory");
RangeCollection pieceIndexRangeCollection = argCollection.ExtractNext <RangeCollection>("pieceIndexRange");
int pieceCount = argCollection.ExtractNext <int>("pieceCount");
RangeCollection nullIndexRangeCollection = argCollection.ExtractNext <RangeCollection>("nullIndexRange");
argCollection.CheckThatEmpty();
if (!PhyloDDriver.ValidateDistribution(leafDistributionName))
{
Console.WriteLine("{0} is not a recognized distribution name. Please choose a name from the following list:", leafDistributionName);
foreach (string name in PhyloDDriver.GetDistributionNames())
{
Console.WriteLine("\t{0}", name);
}
throw new ArgumentException("Invalid distribution name.");
}
RangeCollection skipRowIndexRangeCollectionOrNull = (null == skipRowIndexFileNameOrNull) || skipRowIndexFileNameOrNull == "null" ? null : RangeCollection.Parse(File.ReadAllText(skipRowIndexFileNameOrNull));
KeepTest <Dictionary <string, string> > keepTest = KeepTest <Dictionary <string, string> > .GetInstance(null, keepTestName);
SpecialFunctions.CheckCondition(pieceIndexRangeCollection.IsBetween(0, pieceCount - 1), "pieceIndex must be at least 0 and less than pieceCount");
SpecialFunctions.CheckCondition(nullIndexRangeCollection.IsBetween(-1, int.MaxValue), "nullIndex must be at least -1");
PhyloTree aPhyloTree = PhyloTree.GetInstance(treeFileName, null);
ModelScorer modelScorer = ModelScorer.GetInstance(aPhyloTree, leafDistributionName, optimizerName);
ModelEvaluator modelEvaluator = ModelEvaluator.GetInstance(leafDistributionName, modelScorer);
PhyloDDriver driver = PhyloDDriver.GetInstance();
driver.Run(
modelEvaluator,
predictorFileName, targetFileName,
leafDistributionName, nullDataGeneratorName,
keepTest, skipRowIndexRangeCollectionOrNull,
niceName,
outputDirectory,
pieceIndexRangeCollection, pieceCount,
nullIndexRangeCollection,
optimizerName);
//Console.Write("Press enter to exist.");
//Console.Read();
}
catch (Exception exception)
{
Console.WriteLine("");
Console.WriteLine(exception.Message);
if (exception.InnerException != null)
{
Console.WriteLine(exception.InnerException.Message);
}
Console.WriteLine("");
Console.WriteLine(UsageMessage);
throw;
}
}
/// <summary>
/// Does the work.
/// </summary>
public override void DoWork()
{
// get our input data and null the field to make sure we don't serialize it back
InputData inputData = mInputData;
mInputData = null;
// get the job-specific names of input files
FileDefCollection fileDefs = Job.FileDefs;
string treeFileName = Utility.GetNamedFileDef(fileDefs, Constants.TreeFileDefName).LocalName;
string predictorFileName = Utility.GetNamedFileDef(fileDefs, Constants.PredictorFileDefName).LocalName;
string targetFileName = Utility.GetNamedFileDef(fileDefs, Constants.TargetFileDefName).LocalName;
string skipRowIndexFileName = Utility.GetNamedFileDef(fileDefs, Constants.SkipRowIndexFileDefName).LocalName;
// construct RangeCollections
RangeCollection pieceIndexRangeCollection = RangeCollection.Parse(inputData.PieceIndexRange);
RangeCollection nullIndexRangeCollection = RangeCollection.Parse(inputData.NullIndexRange);
RangeCollection skipRowIndexRangeCollection;
FileInfo fileInfo = new FileInfo(skipRowIndexFileName);
if (fileInfo.Length > 0)
{
skipRowIndexRangeCollection = RangeCollection.Parse(File.ReadAllText(skipRowIndexFileName));
}
else
{
skipRowIndexRangeCollection = null;
}
// do the rest
PhyloTree aPhyloTree = PhyloTree.GetInstance(treeFileName, null);
ModelScorer modelScorer =
ModelScorer.GetInstance(aPhyloTree, inputData.LeafDistributionName, inputData.OptimizerName);
ModelEvaluator modelEvaluator = ModelEvaluator.GetInstance(inputData.LeafDistributionName, modelScorer);
KeepTest <Dictionary <string, string> > keepTest =
KeepTest <Dictionary <string, string> > .GetInstance(null, inputData.KeepTestName);
PhyloDDriver driver = PhyloDDriver.GetInstance();
// create a name for the temporary job sandbox. This directory gets created by driver.Run(...)
string agentOutputDirectoryName =
Path.Combine(Environment.CurrentDirectory, String.Format(CultureInfo.InvariantCulture, "{0}.{1}", Job.JobId, Task.TaskId));
// save the standard out and standard error in memory streams
using (MemoryStream streamOut = new MemoryStream(), streamError = new MemoryStream())
{
try
{
// redirect the outputs
using (
StreamWriter writerOut = new StreamWriter(streamOut),
writerError = new StreamWriter(streamError))
{
Console.SetOut(writerOut);
Console.SetError(writerError);
try
{
// run the model
string outputFileName = driver.Run(
modelEvaluator,
predictorFileName, targetFileName,
inputData.LeafDistributionName, inputData.NullDataGeneratorName,
keepTest, skipRowIndexRangeCollection,
inputData.NiceName,
agentOutputDirectoryName,
pieceIndexRangeCollection, inputData.PieceCount,
nullIndexRangeCollection,
inputData.OptimizerName);
// this is the expected output file name -- save this so it can be written on the master side with the same name.
mOutputFileName = Path.GetFileName(outputFileName);
mLocalOutputFileName = Path.Combine(inputData.LocalOutputDirectoryName, mOutputFileName);
// get the output data
string fullOutputPath = Path.Combine(agentOutputDirectoryName, mOutputFileName);
if (!File.Exists(fullOutputPath))
{
TaskResult.FailureReason = TaskFailureReason.MissingOutput;
TaskResult.FailureMessage = String.Format(CultureInfo.CurrentCulture, "Cannot find output file '{0}'", targetFileName);
TaskResult.Status = TaskAssignmentStatus.Failed;
}
using (StreamReader outputData = new StreamReader(fullOutputPath))
{
mOutputData = outputData.ReadToEnd();
}
}
finally
{
// this finally is to make sure we delete the folder
// get rid of the sandbox
Directory.Delete(agentOutputDirectoryName, true);
}
}
}
finally
{
// this finally is to make sure we get console output
Encoding encoding = Encoding.Default;
TaskResult.StandardOutput = encoding.GetString(streamOut.GetBuffer());
TaskResult.StandardError = encoding.GetString(streamError.GetBuffer());
}
}
}