org.nd4j.linalg.api.ops.impl.transforms.strict.OldLogSoftMax Maven / Gradle / Ivy
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* 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.transforms.strict;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.base.Preconditions;
import org.nd4j.imports.NoOpNameFoundException;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.BaseTransformStrictOp;
import java.util.Collections;
import java.util.List;
/**
* Old LogSoftMax function
*
* @author Adam Gibson
*/
public class OldLogSoftMax extends BaseTransformStrictOp {
public OldLogSoftMax(SameDiff sameDiff, SDVariable i_v1, SDVariable i_v2) {
super(sameDiff, i_v1, i_v2);
}
public OldLogSoftMax(SameDiff sameDiff, SDVariable i_v1, SDVariable i_v2, boolean inPlace) {
super(sameDiff, i_v1, i_v2, inPlace);
}
public OldLogSoftMax(SameDiff sameDiff, SDVariable i_v, boolean inPlace) {
super(sameDiff, i_v, inPlace);
}
public OldLogSoftMax() {
}
public OldLogSoftMax(INDArray x){
this(x,x);
}
public OldLogSoftMax(INDArray x, INDArray z) {
super(x, z);
Preconditions.checkArgument(x != null && x.rank() == 2, "OldSoftMax op supports rank 2 (2d) arrays only. Got x (source) array with shape: %ndShape", x);
Preconditions.checkArgument(z != null && z.rank() == 2, "OldSoftMax op supports rank 2 (2d) arrays only. Got z (result) array with shape: %ndShape", z);
}
@Override
public int opNum() {
return 2;
}
@Override
public String opName() {
return "old_logsoftmax";
}
@Override
public String onnxName() {
return "old_LogSoftmax";
}
@Override
public String tensorflowName() {
throw new NoOpNameFoundException("No tensorflow op opName found for " + opName());
}
@Override
public List doDiff(List i_v) {
SDVariable ret = f().logSoftmaxDerivative(arg(), i_v.get(0));
return Collections.singletonList(ret);
}
}