/// <summary>
/// Initializes all log file recorder.
/// </summary>
private void InitializeLogFileRecorder()
{
// Get log file suffix from current simulation configuration.
var logFileSuffix =
$"SG_{this._simulationConfiguration.GrayBoxStartGeneration}_ST_{this._simulationConfiguration.GrayBoxStartTimePoint.TotalMilliseconds:0}_CT_{this._simulationConfiguration.GrayBoxConfidenceThreshold:0.####}_ID_{ProcessUtils.GetCurrentProcessId()}";
// Get feature importance header from first element in data dictionary.
var featureImportanceHeader =
new[] { "Generation", }.Concat(
this._customGrayBoxMethods.GetGrayBoxFeatureNamesFromDataRecord(this._dataDictionary.Values.First().First())).ToArray();
// Define instance count header.
var instanceCountHeader = new[]
{
"Instance",
"CancelledBlackBoxRuns",
"FinishedBlackBoxRuns",
"CancelledGrayBoxRuns",
"FinishedGrayBoxRuns",
};
// Initialize log file recorder.
this._featureImportanceRecorder = new StringArrayRecorder(
new FileInfo(Path.Combine(this._logFileDirectory.FullName, $"featureImportance_{logFileSuffix}.csv")),
featureImportanceHeader,
true);
this._predictionScoresRecorder = new StringArrayRecorder(
new FileInfo(Path.Combine(this._logFileDirectory.FullName, $"predictionScores_{logFileSuffix}.csv")),
GrayBoxSimulationPredictionScores.GetHeader(),
true);
this._tuningScoresRecorder = new StringArrayRecorder(
new FileInfo(Path.Combine(this._logFileDirectory.FullName, $"tuningScores_{logFileSuffix}.csv")),
GrayBoxSimulationTuningScores.GetHeader(),
true);
this._instanceCountRecorder = new StringArrayRecorder(
new FileInfo(Path.Combine(this._logFileDirectory.FullName, $"instanceCounts_{logFileSuffix}.csv")),
instanceCountHeader,
true);
}
/// <summary>
/// Gets the current <see cref="GrayBoxSimulationPredictionScores"/>.
/// </summary>
/// <param name="generation">The generation.</param>
/// <param name="timePoint">The gray box start time point.</param>
/// <param name="currentDataRecords">The current data records.</param>
/// <returns>The current <see cref="GrayBoxSimulationPredictionScores"/>.</returns>
private GrayBoxSimulationPredictionScores GetPredictionScores(
int generation,
TimeSpan timePoint,
IEnumerable <DataRecord <TResult> > currentDataRecords)
{
var predictionScores = new GrayBoxSimulationPredictionScores(
generation,
timePoint,
this._positiveTrainDataCount,
this._negativeTrainDataCount);
foreach (var record in currentDataRecords)
{
if (record.IsCancelledByGrayBoxDuringGrayBoxSimulation && record.GrayBoxLabel == GrayBoxUtils.GrayBoxLabelOfTimeouts)
{
predictionScores.TruePositiveCount++;
}
if (record.IsCancelledByGrayBoxDuringGrayBoxSimulation && record.GrayBoxLabel == GrayBoxUtils.GrayBoxLabelOfNonTimeouts)
{
predictionScores.FalsePositiveCount++;
}
if (!record.IsCancelledByGrayBoxDuringGrayBoxSimulation && record.GrayBoxLabel == GrayBoxUtils.GrayBoxLabelOfNonTimeouts)
{
predictionScores.TrueNegativeCount++;
}
if (!record.IsCancelledByGrayBoxDuringGrayBoxSimulation && record.GrayBoxLabel == GrayBoxUtils.GrayBoxLabelOfTimeouts)
{
predictionScores.FalseNegativeCount++;
}
}
return(predictionScores);
}