org.deeplearning4j.nn.conf.layers.NoParamLayer Maven / Gradle / Ivy

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 *  * terms of the Apache License, Version 2.0 which is available at
 *  * https://www.apache.org/licenses/LICENSE-2.0.
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 *  *  information regarding copyright ownership.
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package org.deeplearning4j.nn.conf.layers;

import lombok.NoArgsConstructor;
import org.deeplearning4j.nn.api.ParamInitializer;
import org.deeplearning4j.nn.conf.GradientNormalization;
import org.deeplearning4j.nn.conf.inputs.InputType;
import org.deeplearning4j.nn.params.EmptyParamInitializer;
import org.nd4j.linalg.learning.regularization.Regularization;

import java.util.List;

@NoArgsConstructor
public abstract class NoParamLayer extends Layer {

    protected NoParamLayer(Builder builder) {
        super(builder);
    }

    @Override
    public ParamInitializer initializer() {
        return EmptyParamInitializer.getInstance();
    }

    @Override
    public void setNIn(InputType inputType, boolean override) {
        //No op in most no param layers
    }

    @Override
    public List getRegularizationByParam(String paramName){
        //No parameters -> no regularization of parameters
        return null;
    }

    @Override
    public GradientNormalization getGradientNormalization() {
        return GradientNormalization.None;
    }

    @Override
    public double getGradientNormalizationThreshold() {
        return 0;
    }

    @Override
    public boolean isPretrainParam(String paramName) {
        throw new UnsupportedOperationException(getClass().getSimpleName() + " does not contain parameters");
    }
}