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Java example source code file (GloveChange.java)

This example Java source code file (GloveChange.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

glovechange, indarray, override, serializable, string, util, vocabword

The GloveChange.java Java example source code

/*
 *
 *  * Copyright 2015 Skymind,Inc.
 *  *
 *  *    Licensed under the Apache License, Version 2.0 (the "License");
 *  *    you may not use this file except in compliance with the License.
 *  *    You may obtain a copy of the License at
 *  *
 *  *        http://www.apache.org/licenses/LICENSE-2.0
 *  *
 *  *    Unless required by applicable law or agreed to in writing, software
 *  *    distributed under the License is distributed on an "AS IS" BASIS,
 *  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  *    See the License for the specific language governing permissions and
 *  *    limitations under the License.
 *
 */

package org.deeplearning4j.spark.models.embeddings.glove;

import org.deeplearning4j.models.glove.GloveWeightLookupTable;
import org.deeplearning4j.models.word2vec.VocabWord;
import org.nd4j.linalg.api.ndarray.INDArray;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;

/**
 * @author Adam Gibson
 */
public class GloveChange implements Serializable {
    private VocabWord w1,w2;
    private INDArray w1Update,w2Update;
    private double w1BiasUpdate,w2BiasUpdate;
    private double error;
    private INDArray w1History,w2History;
    private double w1BiasHistory, w2BiasHistory;

    public GloveChange(VocabWord w1, VocabWord w2, INDArray w1Update, INDArray w2Update, double w1BiasUpdate, double w2BiasUpdate,double error,INDArray w1History,INDArray w2History,double w1BiasHistory,double w2BiasHistory) {
        this.w1 = w1;
        this.w2 = w2;
        this.w1Update = w1Update;
        this.w2Update = w2Update;
        this.w1BiasUpdate = w1BiasUpdate;
        this.w2BiasUpdate = w2BiasUpdate;
        this.error = error;
        this.w1History = w1History;
        this.w2History = w2History;
        this.w1BiasHistory = w1BiasHistory;
        this.w2BiasHistory = w2BiasHistory;
    }

    /**
     * Apply the changes to the table
     * @param table
     */
    public void apply(GloveWeightLookupTable table) {
        table.getBias().putScalar(w1.getIndex(), table.getBias().getDouble(w1.getIndex()) - w1BiasUpdate);
        table.getBias().putScalar(w2.getIndex(),table.getBias().getDouble(w2.getIndex()) - w2BiasUpdate);
        table.getSyn0().slice(w1.getIndex()).subi(w1Update);
        table.getSyn0().slice(w2.getIndex()).subi(w2Update);
        table.getWeightAdaGrad().getHistoricalGradient().slice(w1.getIndex()).addi(w1History);
        table.getWeightAdaGrad().getHistoricalGradient().slice(w2.getIndex()).addi(w2History);
        table.getBiasAdaGrad().getHistoricalGradient().putScalar(w1.getIndex(),table.getBiasAdaGrad().getHistoricalGradient().getDouble(w1.getIndex()) + w1BiasHistory);
        table.getBiasAdaGrad().getHistoricalGradient().putScalar(w2.getIndex(),table.getBiasAdaGrad().getHistoricalGradient().getDouble(w2.getIndex()) + w1BiasHistory);

    }

    public INDArray getW1History() {
        return w1History;
    }

    public void setW1History(INDArray w1History) {
        this.w1History = w1History;
    }

    public INDArray getW2History() {
        return w2History;
    }

    public void setW2History(INDArray w2History) {
        this.w2History = w2History;
    }

    public double getW1BiasHistory() {
        return w1BiasHistory;
    }

    public void setW1BiasHistory(double w1BiasHistory) {
        this.w1BiasHistory = w1BiasHistory;
    }

    public double getW2BiasHistory() {
        return w2BiasHistory;
    }

    public void setW2BiasHistory(double w2BiasHistory) {
        this.w2BiasHistory = w2BiasHistory;
    }

    public VocabWord getW1() {
        return w1;
    }

    public void setW1(VocabWord w1) {
        this.w1 = w1;
    }

    public VocabWord getW2() {
        return w2;
    }

    public void setW2(VocabWord w2) {
        this.w2 = w2;
    }

    public INDArray getW1Update() {
        return w1Update;
    }

    public void setW1Update(INDArray w1Update) {
        this.w1Update = w1Update;
    }

    public INDArray getW2Update() {
        return w2Update;
    }

    public void setW2Update(INDArray w2Update) {
        this.w2Update = w2Update;
    }

    public double getW1BiasUpdate() {
        return w1BiasUpdate;
    }

    public void setW1BiasUpdate(double w1BiasUpdate) {
        this.w1BiasUpdate = w1BiasUpdate;
    }

    public double getW2BiasUpdate() {
        return w2BiasUpdate;
    }

    public void setW2BiasUpdate(double w2BiasUpdate) {
        this.w2BiasUpdate = w2BiasUpdate;
    }

    public double getError() {
        return error;
    }

    public void setError(double error) {
        this.error = error;
    }

    @Override
    public String toString() {
        return w1.getIndex() + "," + w2.getIndex() + " error " + error;
    }

}

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