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

Introduction

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

Prototype

@Override
public int getRowDimension() 

Source Link

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 w w  .  ja v a  2  s  .  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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From source file:org.micromanager.plugins.magellan.propsandcovariants.LaserPredNet.java

private static void relu(Array2DRowRealMatrix activations) {
    for (int r = 0; r < activations.getRowDimension(); r++) {
        for (int c = 0; c < activations.getColumnDimension(); c++) {
            if (activations.getEntry(r, c) < 0) {
                activations.setEntry(r, c, 0.0);
            }// w  w  w  .  ja v  a  2 s  .  c  o  m
        }
    }
}

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