deepboof.impl.backward.standard

Class DSpatialMaxPooling_F64

java.lang.Object

deepboof.impl.forward.standard.BaseFunction<T>

deepboof.impl.forward.standard.BaseSpatialWindow<T,VT>

deepboof.impl.forward.standard.SpatialWindowChannel<T,P>

deepboof.impl.backward.standard.DSpatialWindowChannel<deepboof.tensors.Tensor_F64,DSpatialPadding2D_F64>

deepboof.impl.backward.standard.DSpatialMaxPooling_F64

All Implemented Interfaces:

deepboof.DFunction<deepboof.tensors.Tensor_F64>, deepboof.Function<deepboof.tensors.Tensor_F64>

public class DSpatialMaxPooling_F64
extends DSpatialWindowChannel<deepboof.tensors.Tensor_F64,DSpatialPadding2D_F64>

Implementation of DSpatialPadding2D_F64 for Tensor_F64 that extends DSpatialWindowChannel. Comments:
dpadding is a 2D tensor of the spatial region only. In the forwards pass the partial coordinate's index is saved and the batch + channel indexes are implicit saved in the output index tensor.

Field Summary

Fields inherited from class deepboof.impl.backward.standard.DSpatialWindowChannel

dpadding, learningMode

Fields inherited from class deepboof.impl.forward.standard.SpatialWindowChannel

output

Fields inherited from class deepboof.impl.forward.standard.BaseSpatialWindow

C, config, H, HH, Ho, Hp, N, padding, W, Wo, Wp, WW

Fields inherited from class deepboof.impl.forward.standard.BaseFunction

miniBatchSize, parameters, shapeInput, shapeOutput, shapeParameters

Constructor Summary

Constructors

Constructor and Description
DSpatialMaxPooling_F64(deepboof.forward.ConfigSpatial config, DSpatialPadding2D_F64 padding)

Method Summary

Modifier and Type	Method and Description
protected void	_backwards(deepboof.tensors.Tensor_F64 input, deepboof.tensors.Tensor_F64 dout, deepboof.tensors.Tensor_F64 gradientInput, java.util.List<deepboof.tensors.Tensor_F64> gradientParameters)
void	_forward(deepboof.tensors.Tensor_F64 input, deepboof.tensors.Tensor_F64 output)
void	_setParameters(java.util.List<deepboof.tensors.Tensor_F64> parameters)
protected void	backwardsAt_border(DSpatialPadding2D_F64 padded, int batch, int channel, int padY, int padX, int outY, int outX) Applies the backwards local window operation.
protected void	backwardsAt_inner(deepboof.tensors.Tensor_F64 input, int batch, int channel, int inY, int inX, int outY, int outX) Applies the backwards local window operation.
protected void	forwardAt_border(DSpatialPadding2D_F64 padded, int batch, int channel, int padY, int padX, int outY, int outX)
protected void	forwardAt_inner(deepboof.tensors.Tensor_F64 input, int batch, int channel, int inY, int inX, int outY, int outX)

Methods inherited from class deepboof.impl.backward.standard.DSpatialWindowChannel

backwards, backwardsChannel, evaluating, getTensorType, isLearning, learning

Methods inherited from class deepboof.impl.forward.standard.SpatialWindowChannel

forwardChannel

Methods inherited from class deepboof.impl.forward.standard.BaseSpatialWindow

_initialize, getPadding, innerLowerExtent, innerUpperExtent, isEntirelyBorder

Methods inherited from class deepboof.impl.forward.standard.BaseFunction

forward, getOutputShape, getParameters, getParameterShapes, initialize, setParameters

Methods inherited from class java.lang.Object

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

Methods inherited from interface deepboof.Function

forward, getOutputShape, getParameters, getParameterShapes, initialize, setParameters

Constructor Detail

DSpatialMaxPooling_F64

public DSpatialMaxPooling_F64(deepboof.forward.ConfigSpatial config,
                              DSpatialPadding2D_F64 padding)

Method Detail

_setParameters

public void _setParameters(java.util.List<deepboof.tensors.Tensor_F64> parameters)

Specified by:

_setParameters in class deepboof.impl.forward.standard.BaseFunction<deepboof.tensors.Tensor_F64>

_forward

public void _forward(deepboof.tensors.Tensor_F64 input,
                     deepboof.tensors.Tensor_F64 output)

Specified by:

_forward in class deepboof.impl.forward.standard.BaseFunction<deepboof.tensors.Tensor_F64>

_backwards

protected void _backwards(deepboof.tensors.Tensor_F64 input,
                          deepboof.tensors.Tensor_F64 dout,
                          deepboof.tensors.Tensor_F64 gradientInput,
                          java.util.List<deepboof.tensors.Tensor_F64> gradientParameters)

Specified by:

_backwards in class DSpatialWindowChannel<deepboof.tensors.Tensor_F64,DSpatialPadding2D_F64>

backwardsAt_inner

protected void backwardsAt_inner(deepboof.tensors.Tensor_F64 input,
                                 int batch,
                                 int channel,
                                 int inY,
                                 int inX,
                                 int outY,
                                 int outX)

Description copied from class: DSpatialWindowChannel

Applies the backwards local window operation. The padded gradient (dpadding) should be computed here. The input gradient will be found later on

Specified by:

backwardsAt_inner in class DSpatialWindowChannel<deepboof.tensors.Tensor_F64,DSpatialPadding2D_F64>

Parameters:

input - Input spatial tensor

batch - Index of input in mini-batch that is being processed

channel - Channel

inY - y-axis lower extent, in input tensor coordinates

inX - x-axis lower extent, in input tensor coordinates

outY - y-axis output coordinate

outX - x-axis output coordinate

backwardsAt_border

protected void backwardsAt_border(DSpatialPadding2D_F64 padded,
                                  int batch,
                                  int channel,
                                  int padY,
                                  int padX,
                                  int outY,
                                  int outX)

Description copied from class: DSpatialWindowChannel

Applies the backwards local window operation. The padded gradient (dpadding) should be computed here. The input gradient will be found later on

Specified by:

backwardsAt_border in class DSpatialWindowChannel<deepboof.tensors.Tensor_F64,DSpatialPadding2D_F64>

Parameters:

padded - Input spatial virtual tensor

batch - Index of input in mini-batch that is being processed

channel - Channel

padY - y-axis lower extent, in padded tensor coordinates

padX - x-axis lower extent, in padded tensor coordinates

outY - y-axis output coordinate

outX - x-axis output coordinate

forwardAt_inner

protected void forwardAt_inner(deepboof.tensors.Tensor_F64 input,
                               int batch,
                               int channel,
                               int inY,
                               int inX,
                               int outY,
                               int outX)

Specified by:

forwardAt_inner in class deepboof.impl.forward.standard.SpatialWindowChannel<deepboof.tensors.Tensor_F64,DSpatialPadding2D_F64>

forwardAt_border

protected void forwardAt_border(DSpatialPadding2D_F64 padded,
                                int batch,
                                int channel,
                                int padY,
                                int padX,
                                int outY,
                                int outX)

Specified by:

forwardAt_border in class deepboof.impl.forward.standard.SpatialWindowChannel<deepboof.tensors.Tensor_F64,DSpatialPadding2D_F64>