Examples with SimpleMatrix org.ejml.simple.SimpleMatrix used on opensource projects

Example 91 with SimpleMatrix

use of org.ejml.simple.SimpleMatrix in project froog by mroodschild.

the class Open method agregarCapas.

private static void agregarCapas() {
    try {
        DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
        // new File(archivo.getAbsolutePath()));
        Document doc = docBuilder.parse(archivo);
        doc.getDocumentElement().normalize();
        // creamos un listado de nodos Capa
        NodeList layers = doc.getElementsByTagName("layer");
        // recorremos capa por capa
        for (int i = 0; i < layers.getLength(); i++) {
            // creamos un Nodo para obtener el primer elemento
            Node layerNode = layers.item(i);
            if (layerNode.getNodeType() == Node.ELEMENT_NODE) {
                Element layerElement = (Element) layerNode;
                String function = obtenerNodoValor("transferFunction", layerElement);
                String bias = obtenerNodoValor("bias", layerElement);
                String weight = obtenerNodoValor("w", layerElement);
                double[] b = Arrays.stream(bias.split(",")).mapToDouble(Double::valueOf).toArray();
                double[] w = Arrays.stream(weight.split(",")).mapToDouble(Double::valueOf).toArray();
                net.addLayer(new Layer(new SimpleMatrix(b.length, w.length / b.length, true, w), new SimpleMatrix(b.length, 1, true, b), function));
            }
        // fin de creacion de las capas
        }
    } catch (SAXException | IOException | ParserConfigurationException ex) {
        Logger.getLogger(Open.class.getName()).log(Level.SEVERE, null, ex);
    }
}

Example 92 with SimpleMatrix

use of org.ejml.simple.SimpleMatrix in project froog by mroodschild.

the class PreRelu method output.

@Override
public SimpleMatrix output(SimpleMatrix z) {
    double parm = 3;
    SimpleMatrix p = new SimpleMatrix(z.numRows(), z.numCols());
    for (int i = 0; i < p.getNumElements(); i++) {
        p.set(i, Math.max(z.get(i), z.get(i) * parm));
    }
    return p;
}

Example 93 with SimpleMatrix

use of org.ejml.simple.SimpleMatrix in project froog by mroodschild.

the class PreRelu method derivative.

@Override
public SimpleMatrix derivative(SimpleMatrix a) {
    double parm = 3;
    SimpleMatrix p = new SimpleMatrix(a.numRows(), a.numCols());
    for (int i = 0; i < p.getNumElements(); i++) {
        p.set(i, (a.get(i) >= 0) ? parm : -1);
    }
    return p;
}

Example 94 with SimpleMatrix

use of org.ejml.simple.SimpleMatrix in project froog by mroodschild.

the class Softplus method derivative.

/**
 * Función Derivada de la softplus
 *
 * @param z
 * @return 1 / (1 + e^(-z))
 */
@Override
public SimpleMatrix derivative(SimpleMatrix z) {
    SimpleMatrix div = z.scale(-1).elementExp().plus(1);
    SimpleMatrix b = new SimpleMatrix(z.numRows(), z.numCols());
    b.set(1);
    return b.elementDiv(div);
}

Example 95 with SimpleMatrix

use of org.ejml.simple.SimpleMatrix in project froog by mroodschild.

the class LayerTest method testOutputZ.

/**
 * Test of outputZ method, of class Layer.
 */
@Test
public void testOutputZ() {
    SimpleMatrix w1 = new SimpleMatrix(2, 2, true, 0.1, 0.2, 0.3, 0.4);
    SimpleMatrix b1 = new SimpleMatrix(2, 1, true, 0.5, 0.1);
    Layer layer = new Layer(w1, b1, "tansig");
    SimpleMatrix entrada = new SimpleMatrix(2, 1, true, 0.2, 0.6);
    double[] esperado = { 0.64, 0.4 };
    assertArrayEquals(esperado, layer.outputZ(entrada).getMatrix().getData(), 0.0001);
}