org.nd4j.linalg.api.ops.impl.loss.bp.HuberLossBp Maven / Gradle / Ivy
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* Copyright (c) 2015-2019 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
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* under the License.
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* SPDX-License-Identifier: Apache-2.0
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package org.nd4j.linalg.api.ops.impl.loss.bp;
import org.nd4j.autodiff.loss.LossReduce;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.base.Preconditions;
/**
* Hinge loss
*
* @author Alex Black
*/
public class HuberLossBp extends BaseLossBp {
private double delta;
public HuberLossBp(SameDiff sameDiff, LossReduce lossReduce, SDVariable predictions, SDVariable weights, SDVariable labels, double delta){
super(sameDiff, lossReduce, predictions, weights, labels);
Preconditions.checkState(delta >= 0.0, "Delta must be >= 0.0. Got: %s", delta);
this.delta = delta;
tArguments.add(delta);
}
public HuberLossBp(){ }
@Override
public String opName() {
return "huber_loss_grad";
}
}