org.deeplearning4j.preprocessors

Class PermutePreprocessor

java.lang.Object

org.deeplearning4j.nn.conf.preprocessor.BaseInputPreProcessor

org.deeplearning4j.preprocessors.PermutePreprocessor

All Implemented Interfaces:

Serializable, Cloneable, InputPreProcessor

public class PermutePreprocessor
extends BaseInputPreProcessor

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PermutePreprocessor(int... permutationIndices)

Method Summary

Modifier and Type	Method and Description
INDArray	backprop(INDArray output, int miniBatchSize, LayerWorkspaceMgr workspaceMgr) Reverse the preProcess during backprop.
InputType	getOutputType(InputType inputType) For a given type of input to this preprocessor, what is the type of the output?
INDArray	preProcess(INDArray input, int miniBatchSize, LayerWorkspaceMgr workspaceMgr) Pre preProcess input/activations for a multi layer network

Methods inherited from class org.deeplearning4j.nn.conf.preprocessor.BaseInputPreProcessor

clone, feedForwardMaskArray

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PermutePreprocessor

public PermutePreprocessor(int... permutationIndices)

Method Detail

preProcess

public INDArray preProcess(INDArray input,
                           int miniBatchSize,
                           LayerWorkspaceMgr workspaceMgr)

Description copied from interface: InputPreProcessor

Pre preProcess input/activations for a multi layer network

Parameters:

input - the input to pre preProcess

miniBatchSize - Minibatch size

workspaceMgr - Workspace manager

Returns:

the processed input. Note that the returned array should be placed in the ArrayType.ACTIVATIONS workspace via the workspace manager

backprop

public INDArray backprop(INDArray output,
                         int miniBatchSize,
                         LayerWorkspaceMgr workspaceMgr)

Description copied from interface: InputPreProcessor

Reverse the preProcess during backprop. Process Gradient/epsilons before passing them to the layer below.

Parameters:

output - which is a pair of the gradient and epsilon

miniBatchSize - Minibatch size

workspaceMgr - Workspace manager

Returns:

the reverse of the pre preProcess step (if any). Note that the returned array should be placed in ArrayType.ACTIVATION_GRAD workspace via the workspace manager

getOutputType

public InputType getOutputType(InputType inputType)
                        throws InvalidInputTypeException

Description copied from interface: InputPreProcessor

For a given type of input to this preprocessor, what is the type of the output?

Parameters:

inputType - Type of input for the preprocessor

Returns:

Type of input after applying the preprocessor

Throws:

InvalidInputTypeException