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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.factory;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.*;
/**
* Op factory
*
* @author Adam Gibson
*/
public interface OpFactory {
GradientOp createGradientOp(String name, INDArray x, INDArray y, INDArray z);
/**
*
*
* @param name
* @param x
* @param z
* @param extraArgs
* @return
*/
Op createShape(String name, INDArray x, INDArray z, Object[] extraArgs);
/**
* Create a loss function with the given inputs and outputs
* @param name the opName of the function
* @param x the input
* @param y the output
* @return a loss function representing the delta between the 2
*/
LossFunction createLossFunction(String name, INDArray x, INDArray y);
/**
* Accumulation operation
*
* @param name the opName of the function to create
* @param x the input to the function
* @return the operation
*/
Accumulation createAccum(String name, INDArray x);
/**
* Accumulation operation
*
* @param name the opName of the function
* @param x the input
* @param y the pairwise transformation
* @param z the output
* @return the operation
*/
Accumulation createAccum(String name, INDArray x, INDArray y, INDArray z);
/**
*
* @param name
* @param x
* @param y
* @param z
* @param extraArgs
* @return
*/
Accumulation createAccum(String name, INDArray x, INDArray y, INDArray z, Object[] extraArgs);
/**
* @param name
* @param x
* @param y
* @return
*/
Accumulation createAccum(String name, INDArray x, INDArray y);
/**
*
* @param opName
* @param x
* @param y
*@param z
* @param extraArgs @return
*/
IndexAccumulation createIndexAccum(String opName, INDArray x, INDArray y, INDArray z, Object[] extraArgs);
/**
*
* @param name
* @param x
* @return
*/
IndexAccumulation createIndexAccum(String name, INDArray x);
/**Index accumulation operation
* @param name
* @param x
* @param y
* @return
*/
IndexAccumulation createIndexAccum(String name, INDArray x, INDArray y);
/**
* @param name
* @param x
* @param y
* @return
*/
TransformOp createTransform(String name, INDArray x, INDArray y);
/**
* @param name
* @param x
* @return
*/
TransformOp createTransform(String name, INDArray x);
/**
* @param name
* @param x
* @param extraArgs
* @return
*/
TransformOp createTransform(String name, INDArray x, Object[] extraArgs);
/**
* @param name
* @param x
* @param y
* @param z
* @return
*/
TransformOp createTransform(String name, INDArray x, INDArray y, INDArray z);
/**
* @param name
* @param x
* @param y
* @param z
* @return-m 'add more scalar ops' -a
* git push or
*/
TransformOp createTransform(String name, INDArray x, INDArray y, INDArray z, Object[] extraArgs);
/**
* @param name
* @param x
* @param y
* @param scalar
* @return
*/
ScalarOp createScalarTransform(String name, INDArray x, INDArray y, double scalar);
/**
* @param name
* @param x
* @param scalar
* @return
*/
ScalarOp createScalarTransform(String name, INDArray x, double scalar);
/**
* @param name
* @param x
* @param extraArgs
* @param scalar
* @return
*/
ScalarOp createScalarTransform(String name, INDArray x, Object[] extraArgs, double scalar);
/**
* @param name
* @param x
* @param y
* @param z
* @param scalar
* @return
*/
ScalarOp createScalarTransform(String name, INDArray x, INDArray y, INDArray z, double scalar);
/**
* @param name
* @param x
* @param y
* @param z
* @param scalar
* @return
*/
ScalarOp createScalarTransform(String name, INDArray x, INDArray y, INDArray z, Object[] extraArgs, double scalar);
/** Create a vector operation
*
* @param name Name of the vector op
* @param x NDArray to operate on
* @param y Vector
* @param z Result NDArray
* @param dimension Dimension to do op along. 0 for row, 1 for column, etc
* @return VectorOp
*/
BroadcastOp createBroadcastOp(String name, INDArray x, INDArray y, INDArray z, int... dimension);
/**
*
* @param name
* @param x
* @param y
* @param z
* @param extraArgs
* @param dimension
* @return
*/
BroadcastOp createBroadcastOp(String name, INDArray x, INDArray y, INDArray z, Object[] extraArgs,
int... dimension);
/** Create a vector operation
*
* @param name Name of the vector op
* @param x NDArray to operate on
* @param z Result NDArray
* @param dimension Dimension to do op along. 0 for row, 1 for column, etc
* @return VectorOp
*/
BroadcastOp createBroadcastOp(String name, INDArray x, INDArray z, int... dimension);
/**
* This method returns op id number for given opName
*
* @return
*/
int getOpNumByName(String opName);
/**
* This method returns op id number if opName exists, or -1 otherwise
*
* @param opName
* @return
*/
int getOpNumIfExists(String opName);
/**
* This method returns Op instance if opName exists, null otherwise
* @param opName
* @return
*/
Op getOpByName(String opName);
}
