Example usage for weka.classifiers.functions MultilayerPerceptron buildClassifier

Introduction

In this page you can find the example usage for weka.classifiers.functions MultilayerPerceptron buildClassifier.

Prototype

@Override
public void buildClassifier(Instances i) throws Exception 

Source Link

Document

Call this function to build and train a neural network for the training data provided.

Usage

From source file:MLP.java

MLP() {

    try {//  ww w .ja  va 2s .  c  o  m
        FileReader trainreader = new FileReader("C:\\new.arff");
        FileReader testreader = new FileReader("C:\\new.arff");

        Instances train = new Instances(trainreader);
        Instances test = new Instances(testreader);
        train.setClassIndex(train.numAttributes() - 1);
        test.setClassIndex(test.numAttributes() - 1);

        MultilayerPerceptron mlp = new MultilayerPerceptron();
        mlp.setOptions(Utils.splitOptions("-L 0.3 -M 0.2 -N 500 -V 0 -S 0 -E 20 -H 4"));

        mlp.buildClassifier(train);

        Evaluation eval = new Evaluation(train);
        eval.evaluateModel(mlp, test);
        System.out.println(eval.toSummaryString("\nResults\n======\n", false));
        trainreader.close();
        testreader.close();

    } catch (Exception ex) {

        ex.printStackTrace();

    }

}

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From source file:anndl.Anndl.java

private static void buildModel(InputStream input) throws Exception {
    ANNDLLexer lexer = new ANNDLLexer(new ANTLRInputStream(input));
    CommonTokenStream tokens = new CommonTokenStream(lexer);
    ANNDLParser parser = new ANNDLParser(tokens);
    ParseTree tree = parser.model();/*from w  w w .j  av a2  s.  c  om*/

    ModelVisitor visitor = new ModelVisitor();

    ModelClassifier themodel = (ModelClassifier) visitor.visit(tree);
    //themodel.PrintInfo();
    themodel.extracthidden();

    System.out.println("Membaca File Training...");
    DataSource trainingsoure = new DataSource(themodel.filetraining);
    Instances trainingdata = trainingsoure.getDataSet();
    if (trainingdata.classIndex() == -1) {
        trainingdata.setClassIndex(trainingdata.numAttributes() - 1);
    }

    System.out.println("Melakukan konfigurasi ANN ... ");
    MultilayerPerceptron mlp = new MultilayerPerceptron();
    mlp.setLearningRate(themodel.learningrate);
    mlp.setMomentum(themodel.momentum);
    mlp.setTrainingTime(themodel.epoch);
    mlp.setHiddenLayers(themodel.hidden);

    System.out.println("Melakukan Training data ...");
    mlp.buildClassifier(trainingdata);

    Debug.saveToFile(themodel.namamodel + ".model", mlp);

    System.out.println("\n~~ .. ~~ .. ~~ .. ~~ .. ~~ .. ~~ .. ~~ .. ~~ .. ~~ ..");
    System.out.println("Model ANN Berhasil Diciptakan dengan nama file : " + themodel.namamodel + ".model");
    System.out.println("~~ .. ~~ .. ~~ .. ~~ .. ~~ .. ~~ .. ~~ .. ~~ .. ~~ .. \n");

}

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From source file:Clases.RedNeuronal.RedNeuronal.java

public void redNeuronal(int puntaje, int tiempo, int error) throws Exception {
    //si puntaje >= 200 entonces aprendido
    //si tiempo <= 240 (4 minutos) entonces aprendido
    //si errores <= 3 entonces aprendido
    String[] dato = { obtnerPuntaje(puntaje), obtenerTiempo(tiempo), obtenerErrores(error) };

    ConverterUtils.DataSource con = new ConverterUtils.DataSource(
            "C:\\Users\\USUARIO\\Documents\\SILVIIS\\10 Modulo\\2.ANTEPROYECTOS DE TESIS\\Proyecto\\Aplicacion\\redeAprendizaje.arff");
    //        ConverterUtils.DataSource con = new ConverterUtils.DataSource("E:\\Unl\\10 Modulo\\2.ANTEPROYECTOS DE TESIS\\Proyecto\\Aplicacion\\redeAprendizaje.arff");

    Instances instances = con.getDataSet();
    System.out.println(instances);
    instances.setClassIndex(instances.numAttributes() - 1);

    MultilayerPerceptron mp = new MultilayerPerceptron();
    mp.buildClassifier(instances);

    Evaluation evalucion = new Evaluation(instances);
    evalucion.evaluateModel(mp, instances);
    System.out.println(evalucion.toSummaryString());
    System.out.println(evalucion.toMatrixString());

    String datosEntrada = null;//from  w ww  .  j  a va 2s. c  o m
    String datosSalida = "no se puede predecir";
    for (int i = 0; i < instances.numInstances(); i++) {
        double predecido = mp.classifyInstance(instances.instance(i));
        datosEntrada = dato[0] + " " + dato[1] + " " + dato[2];
        if ((int) instances.instance(i).value(0) == Integer.parseInt(dato[0])
                && (int) instances.instance(i).value(1) == Integer.parseInt(dato[1])
                && (int) instances.instance(i).value(2) == Integer.parseInt(dato[2])) {
            datosSalida = instances.classAttribute().value((int) predecido);
        }
    }
    System.out.println("DATOS DE ENTRADA: " + datosEntrada);
    System.out.println("SALIDA PREDECIDA: " + datosSalida);

    switch (datosSalida) {
    case "0":
        resultado = "Excelente ha aprendido";
        imgResultado = "Excelente.jpg";
        imgREDneuronal = "0.png";
        System.out.println("Excelente ha aprendido");
        break;
    case "1":
        resultado = "Disminuir Errores";
        imgResultado = "Bueno.jpg";
        imgREDneuronal = "1.png";
        System.out.println("Disminuir Errores");
        break;
    case "2":
        resultado = "Disminuir Tiempo";
        imgResultado = "Bueno.jpg";
        imgREDneuronal = "2.png";
        System.out.println("Disminuir Tiempo");
        break;
    case "3":
        resultado = "Disminuir Errores y tiempo";
        imgResultado = "Bueno.jpg";
        imgREDneuronal = "3.png";
        System.out.println("Disminuir Errores y tiempo");
        break;
    case "4":
        resultado = "Subir Puntaje";
        imgResultado = "pensando.jpg";
        imgREDneuronal = "4.png";
        System.out.println("Subir Puntaje");
        break;
    case "5":
        resultado = "Subir Puntaje y disminuir Errores";
        imgResultado = "pensando.jpg";
        imgREDneuronal = "5.png";
        System.out.println("Subir Puntaje y disminuir Errores");
        break;
    case "6":
        resultado = "Subir Puntaje y disminuir Tiempo";
        imgResultado = "pensando.jpg";
        imgREDneuronal = "6.png";
        System.out.println("Subir Puntaje y disminuir Tiempo");
        break;
    case "7":
        resultado = "Ponle mas Empeo";
        imgResultado = "pensando.jpg";
        imgREDneuronal = "7.png";
        System.out.println("Ponle mas Empeo");
        break;
    default:
        resultado = "Verifique entradas, no se puede predecir";
        imgResultado = "Error.jpg";
        System.out.println("Verifique entradas, no se puede predecir");
        break;
    }
}

---

From source file:clasificador.Perceptron.java

public void perceptron_multicapa() {
    try {//ww  w . ja v  a  2s  . com
        //INSTANCIAS PARA ENTRENAMIENTO DEL CLASIFICADOR
        ConverterUtils.DataSource converU = new ConverterUtils.DataSource(
                "C:\\Users\\Kathy\\Documents\\tutorial perl\\libro.arff");
        Instances instancias = converU.getDataSet();
        instancias.setClassIndex(instancias.numAttributes() - 1);

        //INSTANCIAS PARA EL TEST DEL MODELO 
        ConverterUtils.DataSource convertest = new ConverterUtils.DataSource(
                "C:\\Users\\Kathy\\Documents\\tutorial perl\\libro5.arff");
        Instances testInstance = convertest.getDataSet();
        testInstance.setClassIndex(testInstance.numAttributes() - 1);

        //CONTRUCCIN DEL CLASIFICADOR
        MultilayerPerceptron perceptron = new MultilayerPerceptron();
        perceptron.buildClassifier(instancias);
        //Evaluar las instancias
        Evaluation ev = new Evaluation(instancias);
        //EVALUAR MODELO DE ENTRENAMIENTO
        ev.evaluateModel(perceptron, instancias);
        //System.out.println(instancias);
        System.out.println("\n\nENTRENAMIENTO DEL MODELO PERCEPTRN MULTICAPA\n\n");
        System.out.println(ev.toSummaryString("_____RESULTADO_____", true));
        System.out.println(ev.toMatrixString("_____Matriz confusion___"));

        //EVALUACIN DEL MODELO
        ev.evaluateModel(perceptron, testInstance);
        //System.out.println(instancias);
        System.out.println("\n\nTEST DEL MODELO PERCEPTRN MULTICAPA\n\n");
        System.out.println(ev.toSummaryString("_____RESULTADO_____", true));
        System.out.println(ev.toMatrixString("_____Matriz confusion___"));

        //MOSTRAR VALORES 
        for (int i = 0; i < ev.evaluateModel(perceptron, testInstance).length; i++) {
            System.out.println("Se clasifica como:  " + ev.evaluateModel(perceptron, testInstance)[i]);
        }

    }

    catch (Exception ex) {
        Logger.getLogger(Perceptron.class.getName()).log(Level.SEVERE, null, ex);
    }

}

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From source file:clasificador.RedNeuronal.java

public void Entrenamiento(String paramNN) {
    try {//  w ww .j av  a  2s  .  co m
        //aqui va a anetrenar la red neuronal con parametros para la red
        FileReader trainReader = new FileReader(
                new File(System.getProperty("user.dir") + "\\src\\clasificador\\archivos\\libro.arff"));
        //FileReader trainReader = new FileReader("aqui va la ruta");
        //intancias
        //lo que vamoas a hacer en agarrar ese objeto y cargarlo dentro de nuestra clase instancias
        Instances trainInstance = new Instances(trainReader);
        trainInstance.setClassIndex(trainInstance.numAttributes() - 1);//esta fijando las etiquetas en el archivo las clases estan en el final es decir el total -1 esto es xk es un ambiento controlado 

        //construccion de la red perceptron multicapa 
        MultilayerPerceptron mlp = new MultilayerPerceptron(); // creo un objeto de  perceptron multicapaa
        mlp.setOptions(Utils.splitOptions(paramNN));
        //fijar los parametros de la red perceptron util es para q reciba toda la confiuguracion es proipio de weka
        mlp.buildClassifier(trainInstance);// la construccion se hace ya basadao en los parametron configurado 

        //Guardar el mlp en un archivo 
        Debug.saveToFile("TrainMLP.train", mlp);
        //evaluacion del entrenamiento despies solo se ocupa el trainMLp
        SerializedClassifier sc = new SerializedClassifier();
        sc.setModelFile(new File("TrainMLP.train"));
        Evaluation evaluarEntrenamiento = new Evaluation(trainInstance);
        evaluarEntrenamiento.evaluateModel(mlp, trainInstance);//evaluando el modelo
        System.out.println(evaluarEntrenamiento.toSummaryString("resultado", false));
        System.out.println(evaluarEntrenamiento.toMatrixString("*****************Matriz de confusion*******"));
        trainReader.close();
    } catch (FileNotFoundException ex) {
        Logger.getLogger(RedNeuronal.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(RedNeuronal.class.getName()).log(Level.SEVERE, null, ex);
    } catch (Exception ex) {
        Logger.getLogger(RedNeuronal.class.getName()).log(Level.SEVERE, null, ex);
    }

}

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From source file:cs.man.ac.uk.predict.Predictor.java

License:Open Source License

public static void makePredictionsEnsembleNew(String trainPath, String testPath, String resultPath) {
    System.out.println("Training set: " + trainPath);
    System.out.println("Test set: " + testPath);

    /**//from w w  w  .  j a  va  2  s.  c  om
     * The ensemble classifiers. This is a heterogeneous ensemble.
     */
    J48 learner1 = new J48();
    SMO learner2 = new SMO();
    NaiveBayes learner3 = new NaiveBayes();
    MultilayerPerceptron learner5 = new MultilayerPerceptron();

    System.out.println("Training Ensemble.");
    long startTime = System.nanoTime();
    try {
        BufferedReader reader = new BufferedReader(new FileReader(trainPath));
        Instances data = new Instances(reader);
        data.setClassIndex(data.numAttributes() - 1);
        System.out.println("Training data length: " + data.numInstances());

        learner1.buildClassifier(data);
        learner2.buildClassifier(data);
        learner3.buildClassifier(data);
        learner5.buildClassifier(data);

        long endTime = System.nanoTime();
        long nanoseconds = endTime - startTime;
        double seconds = (double) nanoseconds / 1000000000.0;
        System.out.println("Training Ensemble completed in " + nanoseconds + " (ns) or " + seconds + " (s).");
    } catch (IOException e) {
        System.out.println("Could not train Ensemble classifier IOException on training data file.");
    } catch (Exception e) {
        System.out.println("Could not train Ensemble classifier Exception building model.");
    }

    try {
        String line = "";

        // Read the file and display it line by line. 
        BufferedReader in = null;

        // Read in and store each positive prediction in the tree map.
        try {
            //open stream to file
            in = new BufferedReader(new FileReader(testPath));

            while ((line = in.readLine()) != null) {
                if (line.toLowerCase().contains("@data"))
                    break;
            }
        } catch (Exception e) {
        }

        // A different ARFF loader used here (compared to above) as
        // the ARFF file may be extremely large. In which case the whole
        // file cannot be read in. Instead it is read in incrementally.
        ArffLoader loader = new ArffLoader();
        loader.setFile(new File(testPath));

        Instances data = loader.getStructure();
        data.setClassIndex(data.numAttributes() - 1);

        System.out.println("Ensemble Classifier is ready.");
        System.out.println("Testing on all instances avaialable.");

        startTime = System.nanoTime();

        int instanceNumber = 0;

        // label instances
        Instance current;

        while ((current = loader.getNextInstance(data)) != null) {
            instanceNumber += 1;
            line = in.readLine();

            double classification1 = learner1.classifyInstance(current);
            double classification2 = learner2.classifyInstance(current);
            double classification3 = learner3.classifyInstance(current);
            double classification5 = learner5.classifyInstance(current);

            // All classifiers must agree. This is a very primitive ensemble strategy!
            if (classification1 == 1 && classification2 == 1 && classification3 == 1 && classification5 == 1) {
                if (line != null) {
                    //System.out.println("Instance: "+instanceNumber+"\t"+line);
                    //System.in.read();
                }
                Writer.append(resultPath, instanceNumber + "\n");
            }
        }

        in.close();

        System.out.println("Test set instances: " + instanceNumber);

        long endTime = System.nanoTime();
        long duration = endTime - startTime;
        double seconds = (double) duration / 1000000000.0;

        System.out.println("Testing Ensemble completed in " + duration + " (ns) or " + seconds + " (s).");
    } catch (Exception e) {
        System.out.println("Could not test Ensemble classifier due to an error.");
    }
}

---

From source file:cs.man.ac.uk.predict.Predictor.java

License:Open Source License

public static void makePredictionsEnsembleStream(String trainPath, String testPath, String resultPath) {
    System.out.println("Training set: " + trainPath);
    System.out.println("Test set: " + testPath);

    /**//from w ww.  j a  va  2  s  .  c o m
     * The ensemble classifiers. This is a heterogeneous ensemble.
     */
    J48 learner1 = new J48();
    SMO learner2 = new SMO();
    NaiveBayes learner3 = new NaiveBayes();
    MultilayerPerceptron learner5 = new MultilayerPerceptron();

    System.out.println("Training Ensemble.");
    long startTime = System.nanoTime();
    try {
        BufferedReader reader = new BufferedReader(new FileReader(trainPath));
        Instances data = new Instances(reader);
        data.setClassIndex(data.numAttributes() - 1);
        System.out.println("Training data length: " + data.numInstances());

        learner1.buildClassifier(data);
        learner2.buildClassifier(data);
        learner3.buildClassifier(data);
        learner5.buildClassifier(data);

        long endTime = System.nanoTime();
        long nanoseconds = endTime - startTime;
        double seconds = (double) nanoseconds / 1000000000.0;
        System.out.println("Training Ensemble completed in " + nanoseconds + " (ns) or " + seconds + " (s).");
    } catch (IOException e) {
        System.out.println("Could not train Ensemble classifier IOException on training data file.");
    } catch (Exception e) {
        System.out.println("Could not train Ensemble classifier Exception building model.");
    }

    try {
        // A different ARFF loader used here (compared to above) as
        // the ARFF file may be extremely large. In which case the whole
        // file cannot be read in. Instead it is read in incrementally.
        ArffLoader loader = new ArffLoader();
        loader.setFile(new File(testPath));

        Instances data = loader.getStructure();
        data.setClassIndex(data.numAttributes() - 1);

        System.out.println("Ensemble Classifier is ready.");
        System.out.println("Testing on all instances avaialable.");

        startTime = System.nanoTime();

        int instanceNumber = 0;

        // label instances
        Instance current;

        while ((current = loader.getNextInstance(data)) != null) {
            instanceNumber += 1;

            double classification1 = learner1.classifyInstance(current);
            double classification2 = learner2.classifyInstance(current);
            double classification3 = learner3.classifyInstance(current);
            double classification5 = learner5.classifyInstance(current);

            // All classifiers must agree. This is a very primitive ensemble strategy!
            if (classification1 == 1 && classification2 == 1 && classification3 == 1 && classification5 == 1) {
                Writer.append(resultPath, instanceNumber + "\n");
            }
        }

        System.out.println("Test set instances: " + instanceNumber);

        long endTime = System.nanoTime();
        long duration = endTime - startTime;
        double seconds = (double) duration / 1000000000.0;

        System.out.println("Testing Ensemble completed in " + duration + " (ns) or " + seconds + " (s).");
    } catch (Exception e) {
        System.out.println("Could not test Ensemble classifier due to an error.");
    }
}

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From source file:cyber009.main.UDALNeuralNetwork.java

public static void main(String[] args) {
    UDALNeuralNetwork udal = new UDALNeuralNetwork(0.014013);
    Statistics statis = new Statistics(udal.v);
    long timeStart = 0, timeEnd = 0;
    for (int f = 2; f <= 2; f++) {
        udal.initUDAL(4, 5000);//from  w w w .j a  va 2 s . c  om
        udal.activeLearning(0, 5000);
        udal.arraytoInstances();
        udal.ann.weightReset();
        timeStart = System.currentTimeMillis();
        MultilayerPerceptron wekaNN = new MultilayerPerceptron();
        wekaNN.setAutoBuild(true);
        //wekaNN.setGUI(true);
        try {
            wekaNN.buildClassifier(udal.dataSet);
            Evaluation eval = new Evaluation(udal.dataSet);
            System.out.println(wekaNN.toString());
            eval.crossValidateModel(wekaNN, udal.dataSet, 4999, new Random(System.currentTimeMillis()));
            System.out.println(wekaNN.toString());
            System.out.println(eval.toClassDetailsString());

            //            udal.ann.gradientDescent(10000L, 3, 100);
            //            for (Double target : udal.v.CLASSES) {
            //                statis.calMVMuSigma(target);
            //                System.out.println(udal.v.N_DATA_IN_CLASS.get(target));
            //                System.out.println(statis.mu.get(target));
            //                System.out.println(statis.sigma.get(target));
            //            }
            //            for(int d=0; d<udal.v.D; d++) {
            //                if(udal.v.LABEL[d] == false) {
            //                    double [][] val = new double[udal.v.N-1][1];
            //                    for(int n=1; n<udal.v.N; n++) {
            //                        val[n-1][0] = udal.v.X[d][n];
            ////                        System.out.print(udal.v.X[d][n] + "   ");
            ////                        System.out.println(val[n-1][0]);
            //                    }
            //                    Matrix mVal = new Matrix(val);
            //                    double pp = 0.0D;
            //                    for (Double target : udal.v.CLASSES) {
            //                        //System.out.println("-----------------------\nClass:"+ target);
            //                        pp += statis.posteriorDistribution(target, mVal);
            //                        System.out.println("conditional: Entropy: "+ 
            //                                statis.conditionalEntropy(target, mVal, d));
            //                    }
            //                    System.out.print("Sum posterior:"+ pp+ " for "+new Matrix(val).transpose());
            //                    
            //                }
            //            }
            //            System.out.println("-----------------------");
            //            timeEnd = System.currentTimeMillis();
            //            System.out.println("feature #:"+udal.v.N+" time:("+ (timeEnd - timeStart) +")");
            //            udal.v.showResult();
            //            
        } catch (Exception ex) {
            Logger.getLogger(UDALNeuralNetwork.class.getName()).log(Level.SEVERE, null, ex);
        }

    }
}

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From source file:es.bsc.autonomic.powermodeller.tools.classifiers.MultilayerPerceptronClassifier.java

License:Apache License

@Override
protected Classifier buildClassifier(DataSet training_ds) {

    logger.debug("Building MultilayerPerceptron classifier.");

    MultilayerPerceptron model;

    // Get the independent variable index
    String independent = training_ds.getIndependent();

    if (independent == null)
        throw new WekaWrapperException("Independent variable is not set in dataset.");

    try {/*from  w w  w .j  a  v a 2s  .c o m*/

        // Read all the instances in the file (ARFF, CSV, XRFF, ...)
        ConverterUtils.DataSource source = new ConverterUtils.DataSource(training_ds.getFilePath());
        Instances instances = source.getDataSet();

        // Set the independent variable (powerWatts).
        instances.setClassIndex(instances.attribute(independent).index());

        // Builds a regression model for the given data.
        model = new weka.classifiers.functions.MultilayerPerceptron();
        model.setHiddenLayers("4");
        model.setTrainingTime(20);

        // Build Linear Regression
        model.buildClassifier(instances);

    } catch (WekaWrapperException e) {
        logger.error("Error while creating Linear Regression classifier.", e);
        throw new WekaWrapperException("Error while creating Linear Regression classifier.");

    } catch (Exception e) {
        logger.error("Error while applying Linear Regression to data set instances.", e);
        throw new WekaWrapperException("Error while applying Linear Regression to data set instances.");
    }

    return model;
}

---

From source file:mlp.MLP.java

/**
 * build a multilayer perceptron using the given parameters and the training
 * set/* w  w  w .jav  a 2  s  . c  o m*/
 *
 * @param learningRate the learning rate for the training
 * @param numberEpochs number of training epochs
 * @param numberNeurons number of neurons in the hidden layer
 * @param trainingSet the training set
 * @return
 * @throws Exception
 */
public static MultilayerPerceptron buildMLP(double learningRate, int numberEpochs, int numberNeurons,
        Instances trainingSet) throws Exception {
    MultilayerPerceptron mlp = new MultilayerPerceptron();
    //set parameters
    mlp.setLearningRate(learningRate);
    mlp.setTrainingTime(numberEpochs);
    mlp.setHiddenLayers("" + numberNeurons);
    //build multilayer perceptron
    mlp.buildClassifier(trainingSet);
    return mlp;
}

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