ailayer_sigmoid_default.h File Reference

Default implementation of the Sigmoid layer . More...

Go to the source code of this file.

Typedefs
typedef struct ailayer_sigmoid	ailayer_sigmoid_f32_t
typedef struct ailayer_sigmoid	ailayer_sigmoid_q31_t
typedef struct ailayer_sigmoid	ailayer_sigmoid_q7_t

Functions
ailayer_t *	ailayer_sigmoid_f32_default (ailayer_sigmoid_f32_t *layer, ailayer_t *input_layer)
	Initializes and connect a Sigmoid layer with the F32 default implementation. More...
ailayer_t *	ailayer_sigmoid_q31_default (ailayer_sigmoid_q31_t *layer, ailayer_t *input_layer)
	Initializes and connect a Sigmoid layer with the Q31 default implementation. More...
ailayer_t *	ailayer_sigmoid_q7_default (ailayer_sigmoid_q7_t *layer, ailayer_t *input_layer)
	Initializes and connect a Sigmoid layer with the Q7 default implementation. More...
void	ailayer_sigmoid_calc_result_tensor_params_q31_default (ailayer_t *self)
	Calculate and set the quantization parameters for the result tensor of the sigmoid Q31 default implementation. More...
void	ailayer_sigmoid_calc_result_tensor_params_q7_default (ailayer_t *self)
	Calculate and set the quantization parameters for the result tensor of the sigmoid Q7 default implementation. More...

Detailed Description

Default implementation of the Sigmoid layer .

Version

2.2.0

Copyright

Copyright (C) 2020-2023 Fraunhofer Institute for Microelectronic Circuits and Systems. All rights reserved.

AIfES is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.

Hardware independent implementations of the Sigmoid layer in F32 , Q31 and Q7 data-type. For more information about the Sigmoid layer refer to ailayer_sigmoid.h.

Function Documentation

ailayer_sigmoid_calc_result_tensor_params_q31_default()

void ailayer_sigmoid_calc_result_tensor_params_q31_default

(

ailayer_t *

self

)

Calculate and set the quantization parameters for the result tensor of the sigmoid Q31 default implementation.

Implementation of ailayer.calc_result_tensor_params.

The quantization parameters are pre-defined and the same as in the corresponding math function aimath_q31_default_sigmoid().

Parameters

*self

The layer structure

ailayer_sigmoid_calc_result_tensor_params_q7_default()

void ailayer_sigmoid_calc_result_tensor_params_q7_default

(

ailayer_t *

self

)

Calculate and set the quantization parameters for the result tensor of the sigmoid Q7 default implementation.

Implementation of ailayer.calc_result_tensor_params.

The quantization parameters are pre-defined and the same as in the corresponding math function aimath_q7_default_sigmoid().

Parameters

*self

The layer structure

ailayer_sigmoid_f32_default()

ailayer_t* ailayer_sigmoid_f32_default	(	ailayer_sigmoid_f32_t *	layer,
		ailayer_t *	input_layer
	)

Initializes and connect a Sigmoid layer with the F32 default implementation.

Example: Create the layer structure:

ailayer_sigmoid_f32_t sigmoid_layer;

or

ailayer_sigmoid_f32_t sigmoid_layer = AILAYER_SIGMOID_F32_A();

Example: Initialize and connect the layer:

x = ailayer_sigmoid_f32_default(&sigmoid_layer, x);

Parameters

*layer	The layer structure to initialize.
*input_layer	The prior layer.

Returns

The (successfully) initialized layer structure.

ailayer_sigmoid_q31_default()

ailayer_t* ailayer_sigmoid_q31_default	(	ailayer_sigmoid_q31_t *	layer,
		ailayer_t *	input_layer
	)

Initializes and connect a Sigmoid layer with the Q31 default implementation.

The quantization parameters of the result tensor are automatically set to {shift = 32, zero_point = -2^31} because the output values are in the interval (0, 1).

Example: Create the layer structure:

ailayer_sigmoid_q31_t sigmoid_layer;

or

ailayer_sigmoid_q31_t sigmoid_layer = AILAYER_SIGMOID_Q31_M();

Example: Initialize and connect the layer:

x = ailayer_sigmoid_q31_default(&sigmoid_layer, x);

Parameters

*layer	The layer structure to initialize.
*input_layer	The prior layer.

Returns

The (successfully) initialized layer structure.

ailayer_sigmoid_q7_default()

ailayer_t* ailayer_sigmoid_q7_default	(	ailayer_sigmoid_q7_t *	layer,
		ailayer_t *	input_layer
	)

Initializes and connect a Sigmoid layer with the Q7 default implementation.

The quantization parameters of the result tensor are automatically set to {shift = 8, zero_point = -2^7} because the output values are in the interval (0, 1).

Example: Create the layer structure:

ailayer_sigmoid_q7_t sigmoid_layer;

or

ailayer_sigmoid_q7_t sigmoid_layer = AILAYER_SIGMOID_Q7_M();

Example: Initialize and connect the layer:

x = ailayer_sigmoid_q7_default(&sigmoid_layer, x);

Parameters

*layer	The layer structure to initialize.
*input_layer	The prior layer.

Returns

The (successfully) initialized layer structure.