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Java example source code file (VocabWord.java)

This example Java source code file (VocabWord.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

getter, illegalargumentexception, long, objectmapper, override, runtimeexception, sequenceelement, serializable, setter, string, vocabword

The VocabWord.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.models.word2vec;

import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.Getter;
import lombok.Setter;
import org.deeplearning4j.models.sequencevectors.sequence.SequenceElement;

import java.io.Serializable;


/**
 * Intermediate layers of the neural network
 *
 * @author Adam Gibson
 */
public  class VocabWord extends SequenceElement implements Serializable {

	private static final long serialVersionUID = 2223750736522624256L;

	//for my sanity
	private String word;

    /*
        Used for Joint/Distributed vocabs mechanics
     */
	@Getter @Setter protected Long vocabId;
	@Getter @Setter protected Long affinityId;

	public static VocabWord none() {
		return new VocabWord(0,"none");
	}

	/**
	 *
	 * @param wordFrequency count of the word

	 */
	public VocabWord(double wordFrequency,String word) {
		if(word == null || word.isEmpty())
			throw new IllegalArgumentException("Word must not be null or empty");
		this.word = word;
        this.elementFrequency.set(wordFrequency);
	}


	public VocabWord() {}


    public String getLabel() {
        return this.word;
    }
/*
	public void write(DataOutputStream dos) throws IOException {
		dos.writeDouble(this.elementFrequency.get());
	}

	public VocabWord read(DataInputStream dos) throws IOException {
		this.elementFrequency.set(dos.readDouble());
		return this;
	}

*/

	public String getWord() {
		return word;
	}

	public void setWord(String word) {
		this.word = word;
	}


    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null) return false;
        VocabWord vocabWord = (VocabWord) o;

        return this.word.equals(vocabWord.getWord());
        /*
        if (codeLength != vocabWord.codeLength) return false;
        if (index != vocabWord.index) return false;
        if (!codes.equals(vocabWord.codes)) return false;
        if (historicalGradient != null ? !historicalGradient.equals(vocabWord.historicalGradient) : vocabWord.historicalGradient != null)
            return false;
        if (!points.equals(vocabWord.points)) return false;
        if (!word.equals(vocabWord.word)) return false;
        return this.elementFrequency.get() == vocabWord.elementFrequency.get();
        */
    }

    @Override
    public int hashCode() {
        int result = this.word == null ? 0 : this.word.hashCode(); //this.elementFrequency.hashCode();
        /*result = 31 * result + index;
        result = 31 * result + codes.hashCode();
        result = 31 * result + word.hashCode();
        result = 31 * result + (historicalGradient != null ? historicalGradient.hashCode() : 0);
        result = 31 * result + points.hashCode();
        result = 31 * result + codeLength;*/
        return result;
    }

    @Override
    public String toString() {
        return "VocabWord{" +
                "wordFrequency=" + this.elementFrequency +
                ", index=" + index +
                ", codes=" + codes +
                ", word='" + word + '\'' +
                ", historicalGradient=" + historicalGradient +
                ", points=" + points +
                ", codeLength=" + codeLength +
                '}';
    }

	@Override
	public String toJSON() {
		ObjectMapper mapper = mapper();
		try {
            /*
                we need JSON as single line to save it at first line of the CSV model file
            */
			return mapper.writeValueAsString(this);
		} catch (com.fasterxml.jackson.core.JsonProcessingException e) {
			throw new RuntimeException(e);
		}
	}


}

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