neural_layer_noise.h File Reference

An implementation of a Gaussian noise adding layer. More...

#include "neural_layer.h"

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Functions
void	neural_layer_noise_init (struct Layer *l, const struct ArgsLayer *args)
	Initialises a noise layer.
struct Layer *	neural_layer_noise_copy (const struct Layer *src)
	Initialises and creates a copy of one noise layer from another.
void	neural_layer_noise_rand (struct Layer *l)
	Dummy function since noise layers have no weights.
void	neural_layer_noise_forward (const struct Layer *l, const struct Net *net, const double *input)
	Forward propagates a noise layer.
void	neural_layer_noise_backward (const struct Layer *l, const struct Net *net, const double *input, double *delta)
	Backward propagates a noise layer.
void	neural_layer_noise_update (const struct Layer *l)
	Dummy function since a noise layer has no weights.
void	neural_layer_noise_print (const struct Layer *l, const bool print_weights)
	Prints a noise layer.
bool	neural_layer_noise_mutate (struct Layer *l)
	Dummy function since a noise layer cannot be mutated.
void	neural_layer_noise_free (const struct Layer *l)
	Free memory used by a noise layer.
double *	neural_layer_noise_output (const struct Layer *l)
	Returns the output from a noise layer.
size_t	neural_layer_noise_save (const struct Layer *l, FILE *fp)
	Writes a noise layer to a file.
size_t	neural_layer_noise_load (struct Layer *l, FILE *fp)
	Reads a noise layer from a file.
void	neural_layer_noise_resize (struct Layer *l, const struct Layer *prev)
	Resizes a noise layer if the previous layer has changed size.
char *	neural_layer_noise_json_export (const struct Layer *l, const bool return_weights)
	Returns a json formatted string representation of a noise layer.

Variables
static struct LayerVtbl const	layer_noise_vtbl
	Neural Gaussian noise layer implemented functions.

Detailed Description

An implementation of a Gaussian noise adding layer.

Author

Richard Preen rpree.nosp@m.n@gm.nosp@m.ail.c.nosp@m.om

Copyright

The Authors.

Date

2016–2021.

Definition in file neural_layer_noise.h.

Function Documentation

neural_layer_noise_backward()

void neural_layer_noise_backward	(	const struct Layer *	l,
		const struct Net *	net,
		const double *	input,
		double *	delta
	)

Backward propagates a noise layer.

Parameters

[in]	l	The layer to backward propagate.
[in]	net	Network containing the layer.
[in]	input	The input to the layer.
[out]	delta	The previous layer's error.

Definition at line 154 of file neural_layer_noise.c.

References Layer::delta, Layer::i, and Layer::n_inputs.

neural_layer_noise_copy()

struct Layer * neural_layer_noise_copy

(

const struct Layer *

src

)

Initialises and creates a copy of one noise layer from another.

Parameters

[in]

src

The source layer.

Returns

A pointer to the new layer.

Definition at line 78 of file neural_layer_noise.c.

References layer_defaults(), Layer::layer_vptr, malloc_layer_arrays(), Layer::max_outputs, Layer::n_inputs, Layer::n_outputs, NOISE, Layer::out_c, Layer::out_h, Layer::out_w, Layer::probability, Layer::scale, and Layer::type.

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neural_layer_noise_forward()

void neural_layer_noise_forward	(	const struct Layer *	l,
		const struct Net *	net,
		const double *	input
	)

Forward propagates a noise layer.

Parameters

[in]	l	Layer to forward propagate.
[in]	net	Network containing the layer.
[in]	input	Input to the layer.

Definition at line 127 of file neural_layer_noise.c.

References Layer::i, Layer::n_inputs, Layer::output, Layer::probability, rand_normal(), rand_uniform(), Layer::scale, Layer::state, and Net::train.

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neural_layer_noise_free()

void neural_layer_noise_free

(

const struct Layer *

l

)

Free memory used by a noise layer.

Parameters

[in]

l

The layer to be freed.

Definition at line 105 of file neural_layer_noise.c.

References free_layer_arrays().

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neural_layer_noise_init()

void neural_layer_noise_init	(	struct Layer *	l,
		const struct ArgsLayer *	args
	)

Initialises a noise layer.

Parameters

[in]	l	Layer to initialise.
[in]	args	Parameters to initialise the layer.

Definition at line 59 of file neural_layer_noise.c.

References ArgsLayer::channels, ArgsLayer::height, malloc_layer_arrays(), Layer::max_outputs, Layer::n_inputs, ArgsLayer::n_inputs, Layer::n_outputs, Layer::out_c, Layer::out_h, Layer::out_w, Layer::probability, ArgsLayer::probability, Layer::scale, ArgsLayer::scale, and ArgsLayer::width.

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neural_layer_noise_json_export()

char * neural_layer_noise_json_export	(	const struct Layer *	l,
		const bool	return_weights
	)

Returns a json formatted string representation of a noise layer.

Parameters

[in]	l	The layer to return.
[in]	return_weights	Whether to return the values of weights and biases.

Returns

String encoded in json format.

Definition at line 238 of file neural_layer_noise.c.

References Layer::n_inputs, Layer::n_outputs, Layer::probability, and Layer::scale.

Referenced by neural_layer_noise_print().

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neural_layer_noise_load()

size_t neural_layer_noise_load	(	struct Layer *	l,
		FILE *	fp
	)

Reads a noise layer from a file.

Parameters

[in]	l	The layer to load.
[in]	fp	Pointer to the file to be read.

Returns

The number of elements read.

Definition at line 280 of file neural_layer_noise.c.

References malloc_layer_arrays(), Layer::max_outputs, Layer::n_inputs, Layer::n_outputs, Layer::out_c, Layer::out_h, Layer::out_w, Layer::probability, and Layer::scale.

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neural_layer_noise_mutate()

bool neural_layer_noise_mutate

(

struct Layer *

l

)

Dummy function since a noise layer cannot be mutated.

Parameters

[in]

l

A noise layer.

Returns

False.

Definition at line 182 of file neural_layer_noise.c.

neural_layer_noise_output()

double * neural_layer_noise_output

(

const struct Layer *

l

)

Returns the output from a noise layer.

Parameters

[in]

l

The layer whose output to return.

Returns

The layer output.

Definition at line 212 of file neural_layer_noise.c.

References Layer::output.

neural_layer_noise_print()

void neural_layer_noise_print	(	const struct Layer *	l,
		const bool	print_weights
	)

Prints a noise layer.

Parameters

[in]	l	The layer to print.
[in]	print_weights	Whether to print the values of weights and biases.

Definition at line 223 of file neural_layer_noise.c.

References neural_layer_noise_json_export().

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neural_layer_noise_rand()

void neural_layer_noise_rand

(

struct Layer *

l

)

Dummy function since noise layers have no weights.

Parameters

[in]

l

A softmax layer.

Definition at line 115 of file neural_layer_noise.c.

neural_layer_noise_resize()

void neural_layer_noise_resize	(	struct Layer *	l,
		const struct Layer *	prev
	)

Resizes a noise layer if the previous layer has changed size.

Parameters

[in]	l	The layer to resize.
[in]	prev	The layer previous to the one being resized.

Definition at line 194 of file neural_layer_noise.c.

References free_layer_arrays(), malloc_layer_arrays(), Layer::max_outputs, Layer::n_inputs, Layer::n_outputs, Layer::out_c, Layer::out_h, and Layer::out_w.

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neural_layer_noise_save()

size_t neural_layer_noise_save	(	const struct Layer *	l,
		FILE *	fp
	)

Writes a noise layer to a file.

Parameters

[in]	l	The layer to save.
[in]	fp	Pointer to the file to be written.

Returns

The number of elements written.

Definition at line 259 of file neural_layer_noise.c.

References Layer::max_outputs, Layer::n_inputs, Layer::n_outputs, Layer::out_c, Layer::out_h, Layer::out_w, Layer::probability, and Layer::scale.

neural_layer_noise_update()

void neural_layer_noise_update

(

const struct Layer *

l

)

Dummy function since a noise layer has no weights.

Parameters

[in]

l

A noise layer.

Definition at line 171 of file neural_layer_noise.c.

Variable Documentation

layer_noise_vtbl

struct LayerVtbl const layer_noise_vtbl

static

Initial value:

= {
    &neural_layer_noise_init,     &neural_layer_noise_mutate,
    &neural_layer_noise_resize,   &neural_layer_noise_copy,
    &neural_layer_noise_free,     &neural_layer_noise_rand,
    &neural_layer_noise_print,    &neural_layer_noise_update,
    &neural_layer_noise_backward, &neural_layer_noise_forward,
    &neural_layer_noise_output,   &neural_layer_noise_save,
    &neural_layer_noise_load,     &neural_layer_noise_json_export
}

Neural Gaussian noise layer implemented functions.

Definition at line 76 of file neural_layer_noise.h.

Referenced by layer_set_vptr().