org.deeplearning4j.nn.weights.WeightInitXavierLegacy Maven / Gradle / Ivy
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* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
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package org.deeplearning4j.nn.weights;
import lombok.EqualsAndHashCode;
import org.apache.commons.math3.util.FastMath;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.factory.Nd4j;
/**
* Xavier weight init in DL4J up to 0.6.0. XAVIER should be preferred.
*
* @author Adam Gibson
*/
@EqualsAndHashCode
public class WeightInitXavierLegacy implements IWeightInit {
@Override
public INDArray init(double fanIn, double fanOut, long[] shape, char order, INDArray paramView) {
Nd4j.randn(paramView).divi(FastMath.sqrt(shape[0] + shape[1]));
return paramView.reshape(order, shape);
}
}