weka.core.SerializationHelper Java Examples

/**
 * tests for a serialVersionUID. Fails in case the schemes don't declare
 * a UID (both must!).
 *
 * @return index 0 is true if the scheme declares a UID
 */
protected boolean[] declaresSerialVersionUID() {
  boolean[] result = new boolean[2];
  boolean eval;
  boolean search;
  
  print("serialVersionUID...");
  
  eval   = !SerializationHelper.needsUID(m_Evaluator.getClass());
  search = !SerializationHelper.needsUID(m_Search.getClass());
  
  result[0] = eval && search;
  
  if (result[0])
    println("yes");
  else
    println("no");
  
  return result;
}
 

public static void main(String[] args) throws Exception {
    Classifier j48 = new J48();
    Instances trainingData = GenerateTestVessels.getData();
    j48.buildClassifier(trainingData);
    System.out.println(j48);



    double[] vesselUnderTest = GenerateTestVessels.getBarco(5);

    DenseInstance inst = new DenseInstance(1.0,vesselUnderTest);
    inst.setDataset(trainingData);
    inst.setClassMissing();
    System.out.println(inst);

    double result = j48.classifyInstance(inst);
    System.out.println(GenerateTestVessels.types[(int)result]);

    SerializationHelper.write(new FileOutputStream("tmp"), j48);
    J48 j48Read = (J48)SerializationHelper.read(new FileInputStream("tmp"));
}
 

public NERTool(){
		try {
//	        URL realPath = Thread.currentThread().getContextClassLoader().getResource("");
//	        System.out.println("realPath:"+realPath);
//	        String decoded = URLDecoder.decode(realPath.getFile(), "UTF-8");
//	        File fileRource1 = new File(decoded, GlobalSetting.rule_base_acdat_model);
//			File fileRource2 = new File(decoded, GlobalSetting.rule_base_dict_model);
//			System.out.println("f1="+fileRource1.getAbsolutePath());
//			System.out.println("f2="+fileRource2.getAbsolutePath());
			Resource fileRource = new ClassPathResource(rule_based_model);
			this.rbm =(RuleBasedModels) SerializationHelper.read(new GZIPInputStream(fileRource.getInputStream()));	
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
 

/**
 * Returns the action lister to use in the menu.
 *
 * @param history   the current history
 * @param index     the selected history item
 * @return          the listener
 */
@Override
public ActionListener getActionListener(final ResultHistoryList history, final int index) {
	return new ActionListener() {
		@Override
		public void actionPerformed(ActionEvent e) {
			int retVal = getFileChooser().showSaveDialog(null);
			if (retVal != MekaFileChooser.APPROVE_OPTION)
				return;
			File file = getFileChooser().getSelectedFile();
			try {
				SerializationHelper.writeAll(file.getAbsolutePath(), (Object[]) history.getPayloadAt(index));
			}
			catch (Exception ex) {
				String msg = "Failed to write model to '" + file + "'!";
				System.err.println(msg);
				ex.printStackTrace();
				JOptionPane.showMessageDialog(
						null, msg + "\n" + e);
			}
		}
	};
}
 

public static void initialise(String browserModelFilePath, String osModelFilePath, String fontsPath) throws Exception{
	browserAttributes = new ArrayList<Attribute>();
	osAttributes = new ArrayList<Attribute>();
	browserClassAttribute = new Attribute("className", browserGroupsWeCareAbout);
	osClassAttribute = new Attribute("className", osGroupsWeCareAbout);
	browserAttributes.add(browserClassAttribute);
	osAttributes.add(osClassAttribute);
	for(int i = 1; i <= 5300; ++i){
		browserAttributes.add(new Attribute(Integer.toString(i)));
		osAttributes.add(new Attribute(Integer.toString(i)));
	}
	
	browserClassifier = (Classifier) SerializationHelper.read(browserModelFilePath);
	osClassifier = (Classifier) SerializationHelper.read(osModelFilePath);
	
	BrowserOsGuessFingerprintNumericRepresentation.initialise(fontsPath);
}
 

/**
 * Save the currently selected experiment output to a file.
 * 
 * @param name 	the name of the buffer to save
 */
protected void saveModel(Object[] data) {
  int retVal = m_ModelFileChooser.showSaveDialog(CollectiveClassifierPanel.this);
  if (retVal != JFileChooser.APPROVE_OPTION)
    return;
  try {
    SerializationHelper.writeAll(m_ModelFileChooser.getSelectedFile().getAbsolutePath(), data);
    m_Log.logMessage("Model saved successfully");
  }
  catch (Exception ex) {
    String msg = "Failed to save model to '" + m_ModelFileChooser.getSelectedFile() + "': " + ex;
    m_Log.logMessage(msg);
    JOptionPane.showMessageDialog(CollectiveClassifierPanel.this, msg);
  }
}
 

@Override
public boolean initialize() {
	try {
		cls_act = (Classifier) SerializationHelper.read(Environment.getExternalStorageDirectory().getAbsolutePath()
			+ "/Android/data/tinygsn/" + fileName);
	} catch (Exception e) {
		return false;
	}
	return true;
}
 

/**
 * Opens the specified model file.
 *
 * @param file the model file to load
 */
public void open(File file) {
	Object[]                                    data;
	java.util.List<AbstractObjectRenderer>      renderers;
	JPanel                                      panel;

	m_TabbedPane.removeAll();
	try {
		data = SerializationHelper.readAll(file.getAbsolutePath());
		for (Object obj: data) {
			if (obj == null)
				continue;
			JTextArea text = new JTextArea(20, 40);
			text.setFont(GUIHelper.getMonospacedFont());
			renderers = AbstractObjectRenderer.getRenderer(obj);
			if (renderers.size() == 0)
				continue;
			panel = new JPanel(new BorderLayout());
			renderers.get(0).render(obj, panel);
			m_TabbedPane.addTab(obj.getClass().getName(), panel);
		}
		m_RecentFilesHandler.addRecentItem(file);
		m_LabelFile.setText(file.getAbsolutePath());
	}
	catch (Exception e) {
		m_TabbedPane.removeAll();
		m_LabelFile.setText(NO_FILE_LOADED);
		System.err.println("Failed to load data from '" + file + "':");
		e.printStackTrace();
		JOptionPane.showMessageDialog(
				this,
				"Failed to load dataset from '" + file + "':\n" + e,
				"Error loading",
				JOptionPane.ERROR_MESSAGE);
	}
}
 

/**
 * Writes and experiment to disk.
 *
 * @param exp       the experiment to save
 * @param file      the file to save to
 * @return          null if successful, otherwise error message
 */
@Override
public String write(Experiment exp, File file) {
	String          result;

	result  = null;
	try {
		SerializationHelper.write(file.getAbsolutePath(), exp);
	}
	catch (Exception e) {
		result = handleException("Failed to write experiment to: " + file, e);
	}

	return result;
}
 

/**
 * Reads an experiment from disk.
 *
 * @param file      the file to load
 * @return          the experiment, null if failed to load
 */
@Override
public Experiment read(File file) {
	try {
		return (Experiment) SerializationHelper.read(file.getAbsolutePath());
	}
	catch (Exception e) {
		handleException("Failed to read experiment from: " + file, e);
		return null;
	}
}
 

/**
 * Stores the given statistics.
 *
 * @param stats         the statistics to store
 * @return              null if successfully stored, otherwise error message
 */
@Override
public String write(List<EvaluationStatistics> stats) {
	log("Writing " + stats.size() + " statistics to: " + m_File);

	try {
		SerializationHelper.write(m_File.getAbsolutePath(), stats);
		return null;
	}
	catch (Exception e) {
		return handleException("Failed to write statistics to: " + m_File, e);
	}
}
 

/**
 * Reads the statistics.
 *
 * @return              the statistics that were read
 */
@Override
public List<EvaluationStatistics> read() {
	List<EvaluationStatistics>  result;

	try {
		result = (List<EvaluationStatistics>) SerializationHelper.read(m_File.getAbsolutePath());
	}
	catch (Exception e) {
		result = null;
		handleException("Failed to read serialized statistics from: " + m_File, e);
	}

	return result;
}
 

/**
 * tests for a serialVersionUID. Fails in case the scheme doesn't declare
 * a UID.
 *
 * @return index 0 is true if the scheme declares a UID
 */
protected boolean[] declaresSerialVersionUID() {
  boolean[] result = new boolean[2];
  
  print("serialVersionUID...");
  
  result[0] = !SerializationHelper.needsUID(m_Clusterer.getClass());
  
  if (result[0])
    println("yes");
  else
    println("no");
  
  return result;
}
 

public static void saveModel(Classifier classifier, String modelName) {
    try {
        SerializationHelper.write(modelName, classifier);
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

/**
 * tests for a serialVersionUID. Fails in case the scheme doesn't declare
 * a UID.
 *
 * @return index 0 is true if the scheme declares a UID
 */
protected boolean[] declaresSerialVersionUID() {
  boolean[] result = new boolean[2];
  
  print("serialVersionUID...");
  
  result[0] = !SerializationHelper.needsUID(m_Kernel.getClass());
  
  if (result[0])
    println("yes");
  else
    println("no");
  
  return result;
}
 

/**
 * tests for a serialVersionUID. Fails in case the scheme doesn't declare
 * a UID.
 *
 * @return index 0 is true if the scheme declares a UID
 */
protected boolean[] declaresSerialVersionUID() {
  boolean[] result = new boolean[2];

  print("serialVersionUID...");

  result[0] = !SerializationHelper.needsUID(m_Classifier.getClass());

  if (result[0])
    println("yes");
  else
    println("no");

  return result;
}
 

/**
 * tests for a serialVersionUID. Fails in case the scheme doesn't declare
 * a UID.
 *
 * @return index 0 is true if the scheme declares a UID
 */
protected boolean[] declaresSerialVersionUID() {
  boolean[] result = new boolean[2];
  
  print("serialVersionUID...");
  
  result[0] = !SerializationHelper.needsUID(m_Associator.getClass());
  
  if (result[0])
    println("yes");
  else
    println("no");
  
  return result;
}
 

private static void serializeModel(final CommandLine commandLine, final ISupervisedLearner bestClassifier) throws Exception {
	SerializationHelper.write(commandLine.getOptionValue(modelFileOption, modelFile), bestClassifier);
}
 

public static void main(String[] args) throws Exception {
	
	if (args.length != 2) {
		System.out.println("Usage: WekaSpeechActClassifier <train_set_input_file> <test_set_input_file>");
		System.exit(0);
	}
	
	String arffFileTrain = args[0];
	String arffFileTest = args[1];

	LibSVM wekaClassifier = new LibSVM();
	wekaClassifier.setOptions(new String[] {"-B", "-H"});

	Instances preparedData = (Instances) SerializationHelper.read(arffFileTrain);
	Instances preparedTest = (Instances) SerializationHelper.read(arffFileTest);
	
	System.out.println("Reading train set and test set done!");

	System.out.print("\nTraining...");
	wekaClassifier.buildClassifier(preparedData);
	
	System.out.println("\nTraining...done!");
	
	Evaluation evalTrain = new Evaluation(preparedData);
	evalTrain.evaluateModel(wekaClassifier, preparedData);

	DecimalFormat formatter = new DecimalFormat("#0.0");
	
	System.out.println("\nEvaluating on trainSet...");
	System.out.println(evalTrain.toSummaryString());
	
	System.out.println("\nResult on trainSet...");
	System.out.println("Precision:" + formatter.format(100*evalTrain.precision(0)) + "%" +
			" - Recal: " + formatter.format(100*evalTrain.recall(0)) + "%" +
			" - F1: " + formatter.format(evalTrain.fMeasure(0)) + "%");
	
	Evaluation eval = new Evaluation(preparedTest);
	eval.evaluateModel(wekaClassifier, preparedTest);

	System.out.println("\nEvaluating on testSet...");
	System.out.println(eval.toSummaryString());
	
	System.out.println("\nResult on testSet...");
	System.out.println("Precision:" + formatter.format(100*eval.precision(0)) + "%" +
			" - Recal: " + formatter.format(100*eval.recall(0)) + "%" +
			" - F1: " + formatter.format(100*eval.fMeasure(0)) + "%");

	System.out.println("True positive rate: " + formatter.format(100*eval.truePositiveRate(0)) + "%" + 
			" - True negative rate: "  + formatter.format(100*eval.trueNegativeRate(0)) + "%");
	System.out.println("Accuracy: " + formatter.format(100*((eval.truePositiveRate(0) + eval.trueNegativeRate(0)) / 2)) + "%");
	
	System.out.println("\nDone!");
}