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Java example source code file (AdamUpdater.java)

This example Java source code file (AdamUpdater.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

adam, adamaggregator, adamupdater, baseupdater, gradientupdater, indarray, layer, override, updateraggregator

The AdamUpdater.java Java example source code

package org.deeplearning4j.nn.updater;

import org.deeplearning4j.nn.api.Layer;
import org.deeplearning4j.nn.api.Updater;
import org.deeplearning4j.nn.updater.aggregate.UpdaterAggregator;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.learning.Adam;
import org.nd4j.linalg.learning.GradientUpdater;

/**
 * @author Adam Gibson
 */
public class AdamUpdater extends BaseUpdater {



    @Override
    public void init() {

    }

    @Override
    public GradientUpdater init(String variable, INDArray gradient, Layer layer) {
        Adam adam = (Adam) updaterForVariable.get(variable);
        if(adam == null) {
            adam = new Adam(layer.conf().getLearningRateByParam(variable),
                    layer.conf().getLayer().getAdamMeanDecay(),
                    layer.conf().getLayer().getAdamVarDecay());
            updaterForVariable.put(variable,adam);
        }

        return adam;
    }

    @Override
    public UpdaterAggregator getAggregator(boolean addThis){
        AdamAggregator ag = new AdamAggregator();
        if(addThis) ag.aggregate(this);
        return ag;
    }

    protected static class AdamAggregator extends BaseUpdater.UpdaterAggregatorImpl {
        @Override
        public Updater getUpdater() {
            return setUpdaterState(new AdamUpdater());
        }
    }
}

Other Java examples (source code examples)

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