org.nd4j.linalg.api.ops.impl.transforms.custom.CReLU Maven / Gradle / Ivy
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* * 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.
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* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * Unless required by applicable law or agreed to in writing, software
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* * SPDX-License-Identifier: Apache-2.0
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package org.nd4j.linalg.api.ops.impl.transforms.custom;
import lombok.NoArgsConstructor;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.DynamicCustomOp;
import org.nd4j.common.base.Preconditions;
import java.util.Collections;
import java.util.List;
import lombok.NonNull;
@NoArgsConstructor
public class CReLU extends DynamicCustomOp {
public CReLU(SameDiff sd, SDVariable input) {
super(sd, new SDVariable[]{input});
}
public CReLU(@NonNull INDArray input) {
super(new INDArray[]{input}, null);
}
@Override
public String opName() {
return "crelu";
}
@Override
public List calculateOutputDataTypes(List dataTypes) {
Preconditions
.checkArgument(dataTypes != null && dataTypes.size() == 1, "Expected exactly 1 input datatypes, got %s", dataTypes);
Preconditions.checkArgument(dataTypes.get(0).isFPType(), "Input datatype must be floating point, got %s", dataTypes);
return Collections.singletonList(dataTypes.get(0));
}
@Override
public List doDiff(List i_v) {
return Collections.singletonList(new CReluBp(sameDiff, arg(), i_v.get(0)).outputVariable());
}
}