/// <summary>
/// Parse the learning data to a string.
/// </summary>
/// <param name="exp">Learning data.</param>
/// <returns>String representation of the learning data.</returns>
public static string dump(MachineLearning.Learning.Regression.Learning exp)
{
StringBuilder sb = new StringBuilder();
sb.Append("<learning>\n");
foreach (FeatureSubsetSelection sel in exp.models)
{
sb.Append("<subset>");
foreach (LearningRound round in sel.LearningHistory)
{
sb.Append("<LearningRound>\n");
sb.Append(round.ToString());
sb.Append("</LearningRound>\n");
}
sb.Append("</subset>");
}
return(sb.Append("</learning>\n").ToString().Replace(HEADER, ""));
}
/// <summary>
/// Performs the functionality of one command. If no functionality is found for the command, the command is retuned by this method.
/// </summary>
/// <param name="line">One command with its parameters.</param>
/// <returns>Returns an empty string if the command could be performed by the method. If the command could not be performed by the method, the original command is returned.</returns>
public string performOneCommand(string line)
{
GlobalState.logInfo.logLine(COMMAND + line);
// remove comment part of the line (the comment starts with an #)
line = line.Split(new Char[] { '#' }, 2)[0];
if (line.Length == 0)
return "";
// split line in command and parameters of the command
string[] components = line.Split(new Char[] { ' ' }, 2);
string command = components[0];
string task = "";
if (components.Length > 1)
task = components[1];
string[] taskAsParameter = task.Split(new Char[] { ' ' });
switch (command.ToLower())
{
case COMMAND_START_ALLMEASUREMENTS:
{
InfluenceModel infMod = new InfluenceModel(GlobalState.varModel, GlobalState.currentNFP);
List<Configuration> configurations_Learning = new List<Configuration>();
foreach (Configuration config in GlobalState.allMeasurements.Configurations)
{
if (config.nfpValues.ContainsKey(GlobalState.currentNFP))
configurations_Learning.Add(config);
}
if (configurations_Learning.Count == 0)
{
GlobalState.logInfo.logLine("The learning set is empty! Cannot start learning!");
break;
}
GlobalState.logInfo.logLine("Learning: " + "NumberOfConfigurationsLearning:" + configurations_Learning.Count);
// prepare the machine learning
exp = new MachineLearning.Learning.Regression.Learning(configurations_Learning, configurations_Learning);
exp.metaModel = infMod;
exp.mLsettings = this.mlSettings;
exp.learn();
}
break;
case COMMAND_TRUEMODEL:
StreamReader readModel = new StreamReader(task);
String model = readModel.ReadLine().Trim();
readModel.Close();
this.trueModel = new InfluenceFunction(model.Replace(',', '.'), GlobalState.varModel);
NFProperty artificalProp = new NFProperty("artificial");
GlobalState.currentNFP = artificalProp;
//computeEvaluationDataSetBasedOnTrueModel();
break;
case COMMAND_SUBSCRIPT:
{
FileInfo fi = new FileInfo(task);
StreamReader reader = null;
if (!fi.Exists)
throw new FileNotFoundException(@"Automation script not found. ", fi.ToString());
reader = fi.OpenText();
Commands co = new Commands();
co.exp = this.exp;
while (!reader.EndOfStream)
{
String oneLine = reader.ReadLine().Trim();
co.performOneCommand(oneLine);
}
}
break;
case COMMAND_EVALUATION_SET:
{
GlobalState.evalutionSet.Configurations = ConfigurationReader.readConfigurations(task, GlobalState.varModel);
GlobalState.logInfo.logLine("Evaluation set loaded.");
}
break;
case COMMAND_CLEAR_GLOBAL:
SPLConqueror_Core.GlobalState.clear();
toSample.Clear();
toSampleValidation.Clear();
break;
case COMMAND_CLEAR_SAMPLING:
exp.clearSampling();
toSample.Clear();
toSampleValidation.Clear();
break;
case COMMAND_CLEAR_LEARNING:
exp.clear();
toSample.Clear();
toSampleValidation.Clear();
break;
case COMMAND_LOAD_CONFIGURATIONS:
GlobalState.allMeasurements.Configurations = (GlobalState.allMeasurements.Configurations.Union(ConfigurationReader.readConfigurations(task, GlobalState.varModel))).ToList();
GlobalState.logInfo.logLine(GlobalState.allMeasurements.Configurations.Count + " configurations loaded.");
break;
case COMMAND_SAMPLE_ALLBINARY:
{
if (taskAsParameter.Contains(COMMAND_VALIDATION))
{
this.toSampleValidation.Add(SamplingStrategies.ALLBINARY);
this.exp.info.binarySamplings_Validation = "ALLBINARY";
}
else
{
this.toSample.Add(SamplingStrategies.ALLBINARY);
this.exp.info.binarySamplings_Learning = "ALLBINARY";
}
break;
}
case COMMAND_ANALYZE_LEARNING:
{//TODO: Analyzation is not supported in the case of bagging
GlobalState.logInfo.logLine("Models:");
if (this.mlSettings.bagging)
{
for (int i = 0; i < this.exp.models.Count; i++)
{
FeatureSubsetSelection learnedModel = exp.models[i];
if (learnedModel == null)
{
GlobalState.logError.logLine("Error... learning was not performed!");
break;
}
GlobalState.logInfo.logLine("Termination reason: " + learnedModel.LearningHistory.Last().terminationReason);
foreach (LearningRound lr in learnedModel.LearningHistory)
{
double relativeError = 0;
if (GlobalState.evalutionSet.Configurations.Count > 0)
{
double relativeErro2r = learnedModel.computeError(lr.FeatureSet, GlobalState.evalutionSet.Configurations, out relativeError);
}
else
{
double relativeErro2r = learnedModel.computeError(lr.FeatureSet, GlobalState.allMeasurements.Configurations, out relativeError);
}
GlobalState.logInfo.logLine(lr.ToString() + relativeError);
}
}
}
else
{
FeatureSubsetSelection learnedModel = exp.models[0];
if (learnedModel == null)
{
GlobalState.logError.logLine("Error... learning was not performed!");
break;
}
GlobalState.logInfo.logLine("Termination reason: " + learnedModel.LearningHistory.Last().terminationReason);
foreach (LearningRound lr in learnedModel.LearningHistory)
{
double relativeError = 0;
if (GlobalState.evalutionSet.Configurations.Count > 0)
{
double relativeErro2r = learnedModel.computeError(lr.FeatureSet, GlobalState.evalutionSet.Configurations, out relativeError);
}
else
{
double relativeErro2r = learnedModel.computeError(lr.FeatureSet, GlobalState.allMeasurements.Configurations, out relativeError);
}
GlobalState.logInfo.logLine(lr.ToString() + relativeError);
}
}
break;
}
case COMMAND_EXERIMENTALDESIGN:
performOneCommand_ExpDesign(task);
break;
case COMMAND_SAMPLING_OPTIONORDER:
parseOptionOrder(task);
break;
case COMMAND_VARIABILITYMODEL:
GlobalState.varModel = VariabilityModel.loadFromXML(task);
if (GlobalState.varModel == null)
GlobalState.logError.logLine("No variability model found at " + task);
break;
case COMMAND_SET_NFP:
GlobalState.currentNFP = GlobalState.getOrCreateProperty(task.Trim());
break;
case COMMAND_SAMPLE_OPTIONWISE:
if (taskAsParameter.Contains(COMMAND_VALIDATION))
{
this.toSampleValidation.Add(SamplingStrategies.OPTIONWISE);
this.exp.info.binarySamplings_Validation = "OPTIONSWISE";
}
else
{
this.toSample.Add(SamplingStrategies.OPTIONWISE);
this.exp.info.binarySamplings_Learning = "OPTIONSWISE";
}
break;
case COMMAND_LOG:
string location = task.Trim();
GlobalState.logInfo.close();
GlobalState.logInfo = new InfoLogger(location);
GlobalState.logError.close();
GlobalState.logError = new ErrorLogger(location + "_error");
break;
case COMMAND_SET_MLSETTING:
this.mlSettings = ML_Settings.readSettings(task);
break;
case COMMAND_LOAD_MLSETTINGS:
this.mlSettings = ML_Settings.readSettingsFromFile(task);
break;
case COMMAND_SAMPLE_PAIRWISE:
if (taskAsParameter.Contains(COMMAND_VALIDATION))
{
this.toSampleValidation.Add(SamplingStrategies.PAIRWISE);
this.exp.info.binarySamplings_Validation = "PAIRWISE";
}
else
{
this.toSample.Add(SamplingStrategies.PAIRWISE);
this.exp.info.binarySamplings_Learning = "PAIRWISE";
}
break;
case COMMAND_PRINT_MLSETTINGS:
GlobalState.logInfo.logLine(this.mlSettings.ToString());
break;
case COMMAND_PRINT_CONFIGURATIONS:
{
/* List<Dictionary<NumericOption, double>> numericSampling = exp.NumericSelection_Learning;
List<List<BinaryOption>> binarySampling = exp.BinarySelections_Learning;
List<Configuration> configurations = new List<Configuration>();
foreach (Dictionary<NumericOption, double> numeric in numericSampling)
{
foreach (List<BinaryOption> binary in binarySampling)
{
Configuration config = Configuration.getConfiguration(binary, numeric);
if (!configurations.Contains(config) && GlobalState.varModel.configurationIsValid(config))
{
configurations.Add(config);
}
}
}*/
var configs = ConfigurationBuilder.buildConfigs(GlobalState.varModel, this.toSample);
string[] para = task.Split(new char[] { ' ' });
// TODO very error prone..
ConfigurationPrinter printer = new ConfigurationPrinter(para[0], para[1], para[2], GlobalState.optionOrder);
printer.print(configs);
break;
}
case COMMAND_SAMPLE_BINARY_RANDOM:
{
string[] para = task.Split(new char[] { ' ' });
ConfigurationBuilder.binaryThreshold = Convert.ToInt32(para[0]);
ConfigurationBuilder.binaryModulu = Convert.ToInt32(para[1]);
VariantGenerator vg = new VariantGenerator(null);
if (taskAsParameter.Contains(COMMAND_VALIDATION))
{
this.toSampleValidation.Add(SamplingStrategies.BINARY_RANDOM);
this.exp.info.binarySamplings_Validation = "BINARY_RANDOM";
}
else
{
this.toSample.Add(SamplingStrategies.BINARY_RANDOM);
this.exp.info.binarySamplings_Learning = "BINARY_RANDOM " + task;
}
break;
}
case COMMAND_START_LEARNING:
{
InfluenceModel infMod = new InfluenceModel(GlobalState.varModel, GlobalState.currentNFP);
List<Configuration> configurationsLearning = buildSet(this.toSample);
List<Configuration> configurationsValidation = buildSet(this.toSampleValidation);
if (configurationsLearning.Count == 0)
{
configurationsLearning = configurationsValidation;
}
if (configurationsLearning.Count == 0)
{
GlobalState.logInfo.logLine("The learning set is empty! Cannot start learning!");
break;
}
if (configurationsValidation.Count == 0)
{
configurationsValidation = configurationsLearning;
}
GlobalState.logInfo.logLine("Learning: " + "NumberOfConfigurationsLearning:" + configurationsLearning.Count + " NumberOfConfigurationsValidation:" + configurationsValidation.Count);
//+ " UnionNumberOfConfigurations:" + (configurationsLearning.Union(configurationsValidation)).Count()); too costly to compute
// We have to reuse the list of models because of NotifyCollectionChangedEventHandlers that might be attached to the list of models.
exp.models.Clear();
var mod = exp.models;
exp = new MachineLearning.Learning.Regression.Learning(configurationsLearning, configurationsValidation);
exp.models = mod;
exp.metaModel = infMod;
exp.mLsettings = this.mlSettings;
exp.learn();
GlobalState.logInfo.logLine("Average model: \n" + exp.metaModel.printModelAsFunction());
double relativeError = 0;
if (GlobalState.evalutionSet.Configurations.Count > 0)
{
relativeError = FeatureSubsetSelection.computeError(exp.metaModel, GlobalState.evalutionSet.Configurations, ML_Settings.LossFunction.RELATIVE);
}
else
{
relativeError = FeatureSubsetSelection.computeError(exp.metaModel, GlobalState.allMeasurements.Configurations, ML_Settings.LossFunction.RELATIVE);
}
GlobalState.logInfo.logLine("Error :" + relativeError);
}
break;
case COMMAND_SAMPLE_NEGATIVE_OPTIONWISE:
// TODO there are two different variants in generating NegFW configurations.
if (taskAsParameter.Contains(COMMAND_VALIDATION))
{
this.toSampleValidation.Add(SamplingStrategies.NEGATIVE_OPTIONWISE);
this.exp.info.binarySamplings_Validation = "NEGATIVE_OPTIONWISE";
}
else
{
this.toSample.Add(SamplingStrategies.NEGATIVE_OPTIONWISE);
this.exp.info.binarySamplings_Learning = "NEGATIVE_OPTIONWISE";
}
break;
default:
return command;
}
return "";
}
