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Java example source code file (GravesBidirectionalLSTM.java)

This example Java source code file (GravesBidirectionalLSTM.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

allargsconstructor, baserecurrentlayer, builder, data, equalsandhashcode, gravesbidirectionallstm, noargsconstructor, suppresswarnings, tostring

The GravesBidirectionalLSTM.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;

 * LSTM recurrent net, based on Graves: Supervised Sequence Labelling with Recurrent Neural Networks
 * http://www.cs.toronto.edu/~graves/phd.pdf
@Data @NoArgsConstructor
@ToString(callSuper = true)
@EqualsAndHashCode(callSuper = true)
public class GravesBidirectionalLSTM extends BaseRecurrentLayer {

    private double forgetGateBiasInit;

    private GravesBidirectionalLSTM(Builder builder) {
        this.forgetGateBiasInit = builder.forgetGateBiasInit;

    @AllArgsConstructor @NoArgsConstructor
    public static class Builder extends BaseRecurrentLayer.Builder<Builder> {

        private double forgetGateBiasInit = 1.0;

        /** Set forget gate bias initalizations. Values in range 1-5 can potentially
         * help with learning or longer-term dependencies.
        public Builder forgetGateBiasInit(double biasInit){
            this.forgetGateBiasInit = biasInit;
            return this;

        public GravesBidirectionalLSTM build() {
            return new GravesBidirectionalLSTM(this);


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