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Java example source code file (GRU.java)

This example Java source code file (GRU.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.

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Java - Java tags/keywords

allargsconstructor, baserecurrentlayer, builder, data, equalsandhashcode, gru, noargsconstructor, override, suppresswarnings, tostring

The GRU.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.nn.conf.layers;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import lombok.ToString;

/** Gated Recurrent Unit RNN Layer.<br>
 * The GRU was recently proposed by Cho et al. 2014 - http://arxiv.org/abs/1406.1078<br>
 * It is similar to the LSTM architecture in that both use a gating structure within each unit
 * to attempt to capture long-term dependencies and deal with the vanishing gradient problem.
 * A GRU layer contains fewer parameters than an equivalent size LSTM layer, and some research
 * (such as http://arxiv.org/abs/1412.3555) suggests it may outperform LSTM layers (given an
 * equal number of parameters) in some cases.
 * @author Alex Black
@Data @NoArgsConstructor
@ToString(callSuper = true)
@EqualsAndHashCode(callSuper = true)
public class GRU extends BaseRecurrentLayer {

    private GRU(Builder builder) {

    public static class Builder extends BaseRecurrentLayer.Builder<Builder> {      
        public GRU build() {
            return new GRU(this);

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