org.nd4j.linalg.api.ops.impl.scalar.RectifiedLinear 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.nd4j.linalg.api.ops.impl.scalar;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.BaseScalarOp;
import java.util.Arrays;
import java.util.List;
/**
* Rectified linear units
*
* @author Adam Gibson
*/
public class RectifiedLinear extends BaseScalarOp {
public RectifiedLinear(SameDiff sameDiff, SDVariable i_v, boolean inPlace, double cutoff) {
super(sameDiff, i_v, cutoff, inPlace);
}
public RectifiedLinear() {
super();
}
public RectifiedLinear(INDArray x, INDArray z, double cutoff) {
super(x, null, z, cutoff);
}
public RectifiedLinear(INDArray x, double cutoff) {
super(x, cutoff);
}
public RectifiedLinear(INDArray x, INDArray z) {
this(x, z, 0.0f);
}
public RectifiedLinear(INDArray x) {
this(x, 0.0f);
}
@Override
public int opNum() {
return 39;
}
@Override
public String opName() {
return "relu";
}
@Override
public String onnxName() {
return "Relu";
}
@Override
public String tensorflowName() {
return "Relu";
}
@Override
public List doDiff(List i_v) {
SDVariable step = new Step(sameDiff, arg(), false, scalarValue.getDouble(0)).outputVariables()[0];
SDVariable ret = step.mul(i_v.get(0));
return Arrays.asList(ret);
}
}