Example usage for org.apache.commons.math.linear Array2DRowRealMatrix multiply

Introduction

In this page you can find the example usage for org.apache.commons.math.linear Array2DRowRealMatrix multiply.

Prototype

public Array2DRowRealMatrix multiply(final Array2DRowRealMatrix m) throws IllegalArgumentException 

Source Link

Document

Returns the result of postmultiplying this by m.

Usage

From source file:org.micromanager.plugins.magellan.propsandcovariants.LaserPredNet.java

public byte[] forwardPass(double[][] x) {
    double[] ones = new double[x.length];
    Arrays.fill(ones, 1.0);//from  w ww. j  a  va  2s. c  o m
    Array2DRowRealMatrix onesMat = new Array2DRowRealMatrix(ones);
    //assume x is properly normalized
    new Array2DRowRealMatrix(x[0]);
    Array2DRowRealMatrix xMat = (Array2DRowRealMatrix) MatrixUtils.createRealMatrix(x);
    Array2DRowRealMatrix h = xMat.multiply(W1_).add(onesMat.multiply(B1_));
    relu(h);
    Array2DRowRealMatrix z = (Array2DRowRealMatrix) h.multiply(W2_.transpose()).add(onesMat.multiply(B2_));
    byte[] powers = new byte[z.getRowDimension() * z.getColumnDimension()];
    for (int i = 0; i < powers.length; i++) {
        powers[i] = (byte) Math.max(0, Math.min(255, z.getEntry(i, 0)));
    }
    return powers;
}

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