org.deeplearning4j.arbiter.layers.fixed.FixedLayerSpace Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://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.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
package org.deeplearning4j.arbiter.layers.fixed;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import org.deeplearning4j.arbiter.layers.LayerSpace;
import org.deeplearning4j.arbiter.optimize.api.ParameterSpace;
import org.deeplearning4j.nn.conf.layers.Layer;
import java.util.Collections;
import java.util.List;
/**
* A layer space that wraps a DL4J layer, without any optimizable hyperparameters
*
* @param Type of layer
*
* @author Alex Black
*/
@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = false)
public class FixedLayerSpace extends LayerSpace {
protected T layer;
@Override
public T getValue(double[] parameterValues) {
return (T)layer.clone();
}
@Override
public int numParameters() {
return 0;
}
@Override
public boolean isLeaf() {
return true;
}
@Override
public void setIndices(int[] idxs){
if(idxs != null && idxs.length > 0){
throw new IllegalStateException("Cannot set indices: no parameters");
}
}
@Override
public List collectLeaves() {
return Collections.singletonList(this);
}
}