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NeuralNetwork.h
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NeuralNetwork.h
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// https://learn.sparkfun.com/tutorials/efficient-arduino-programming-with-arduino-cli-and-visual-studio-code/all
// https://www.arduino.cc/en/Hacking/libraryTutorial
/*
NeuralNetwork.h - Library for MLP Neural Networks.
Created by George Chousos, April 11, 2019. *0
Released into the public domain.
*0: Mainly Based On https://www.youtube.com/watch?v=L_PByyJ9g-I
*/
/*
[double on some Arduino boards like UNO for example is equal to float]
- https://www.arduino.cc/reference/en/language/variables/data-types/double/
- https://forum.arduino.cc/index.php?topic=613873.0
*/
/*
[Error #777]
NeuralNetwork(const unsigned int *layer_, const float *default_Weights, const float *default_Bias, const unsigned int &NumberOflayers , bool isProgmem)
Because someone, might want to have default or pretrained weights and biases and not in the PROGMEM but in the SRAM.
- https://stackoverflow.com/questions/56024569/arduino-compiler-takes-into-account-const-progmem-type-as-equal-to-const-type
- https://forum.arduino.cc/index.php?topic=614438.0
*/
// STR(MSGX) | pragma message
#define MSG0
// i would love if there could be a list of microcontrollers or a way to determine with defined(..) the size of SRAM or etc.
// Defines a list of microcontroller Attiny series As__AVR_ATtinyXXX__
#if defined(__AVR_ATtiny2313__) || defined(__AVR_ATtiny4313__) || defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
#define As__AVR_ATtinyX__
#if defined(__AVR_ATtiny85__)
#undef MSG0
#define MSG0 \n⌥▌"////////////// [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Last time i tried backpropagation on an ATtiny85 I had Issues [...]"
#endif
#endif
// Defines a list of microcontroller series (as) As__No_Common_Serial_Support (in that moment)
#if defined(As__AVR_ATtinyX__) // or etc.
#define As__No_Common_Serial_Support
#endif
#if defined(ESP32)
#define AS_SOFTWARE_EMULATED_EEPROM
#endif
// - This prevents problems if someone accidently #include's your library twice.
#ifndef NeuralNetwork_h
#define NeuralNetwork_h
// - That gives you access to the standard types and constants of the Arduino language.
#include "Arduino.h"
// https://arduino.stackexchange.com/questions/94743/is-ifdef-sd-h-considered-a-bad-practice/
#define SD_LIB_NAME <SD.h>
#if defined(__SD_H__) || defined(SD_h)
#define SUPPORTS_SD_FUNCTIONALITY
#elif defined __has_include
#if __has_include(SD_LIB_NAME)
#include SD_LIB_NAME
#define SUPPORTS_SD_FUNCTIONALITY
#endif
#endif
#define EEPROM_LIB_NAME <EEPROM.h>
#if defined(EEPROM_h) || defined(__EEPROM_H__)
#define INCLUDES_EEPROM_H
#elif defined __has_include
#if __has_include(EEPROM_LIB_NAME)
#include EEPROM_LIB_NAME
#define INCLUDES_EEPROM_H
#endif
#endif
// STR(MSGX) | pragma message
#define MSG1
#define MSG2
#define MSG3
#define MSG4
#define MSG5
#define MSG6
#define MSG7
#define MSG8
#define MSG9
#define MSG10
#define MSG11
#define MSG12
#define MSG13
#define LOVE \n❤ 𝖀𝖓𝖈𝖔𝖓𝖉𝖎𝖙𝖎𝖔𝖓𝖆𝖑 𝕷𝖔𝖛𝖊 ❤\n
#define F_MACRO
#define ATOL atol
#define LLONG long
#define DFLOAT float
#define DFLOAT_LEN 7
#define PGM_READ_DFLOAT pgm_read_float
#define IS_CONST
#if defined(_1_OPTIMIZE)
#if ((_1_OPTIMIZE bitor B01111111) == B11111111)
#define USE_PROGMEM
#define NO_BACKPROP
#undef IS_CONST
#define IS_CONST const
#undef MSG1
#define MSG1 \n⌥▌" [1] B10000000 [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Backpropagation is not Allowed with (USE_PROGMEM)."
#endif
#if ((_1_OPTIMIZE bitor B10111111) == B11111111)
#define REDUCE_RAM_DELETE_OUTPUTS
#define NO_BACKPROP
#undef MSG2
#define MSG2 \n⌥▌" [1] B01000000 [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Backpropagation is not Allowed with (REDUCE_RAM_DELETE_OUTPUTS)."
#endif
#if ((_1_OPTIMIZE bitor B11101111) == B11111111)
#define REDUCE_RAM_WEIGHTS_COMMON
#define REDUCE_RAM_WEIGHTS_LVL2
//#warning [⚠] Backpropagating more than once after a FeedForward [...]
#elif ((_1_OPTIMIZE bitor B11011111) == B11111111)
#undef MSG3
#define MSG3 \n⌥▌" [1] B00100000 [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Is not implemented yet."
//#define REDUCE_RAM_WEIGHTS_COMMON
//#define REDUCE_RAM_WEIGHTS_LVL1
#endif
#if ((_1_OPTIMIZE bitor B11110111) == B11111111)
#define REDUCE_RAM_DELETE_PREVIOUS_LAYER_GAMMA
#undef MSG4
#define MSG4 \n⌥▌" [1] B00001000 [ⓘ] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Always Enabled not switchable yet."
#endif
#if ((_1_OPTIMIZE bitor B11111011) == B11111111)
#define REDUCE_RAM_STATIC_REFERENCE
#undef MSG5
#define MSG5 \n⌥▌" [1] B00000100 [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Be careful with multiple NN objects."
#endif
#if ((_1_OPTIMIZE bitor B11111101) == B11111111)
#define DISABLE_MSE
#undef MSG6
#define MSG6 \n⌥▌" [1] B00000010 [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] MSE is disabled (DISABLE_MSE) (DEFAULT_LOSS)"
#endif
#if ((_1_OPTIMIZE bitor B11111110) == B11111111)
#undef ATOL
#undef LLONG
#undef DFLOAT_LEN
#undef DFLOAT
#undef PGM_READ_DFLOAT
#define USE_64_BIT_DOUBLE
#define ATOL atoll
#define LLONG long long
#define DFLOAT_LEN 15
#define DFLOAT double
#define PGM_READ_DFLOAT pgm_read_double
double pgm_read_double(const double* address) {
double result;
memcpy_P(&result, address, sizeof(double));
return result;
}
#undef MSG7
#define MSG7 \n⌥▌" [1] B00000001 [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Not all MCUs support 64bit\8byte double (USE_64_BIT_DOUBLE)."
#endif
//if i'll make most of the things static/global, i can significantly reduce rom but with the "limitation" of "one" NN per skeatch
#endif
// Disable SIMD parallel processing if double precision is enabled
#if defined(CONFIG_IDF_TARGET_ESP32S3) || defined(USE_ESP_SIMD)
#if defined(USE_64_BIT_DOUBLE)
#undef MSG7
#define MSG7 \n⌥▌" [1] B00000001 [ⓘ] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] SIMD disabled, there is no support when double precision."
#else
#define ESP_SUPPORTS_SIMD
#include "esp_dsp.h"
#endif
#endif
#if defined(_2_OPTIMIZE)
#if ((_2_OPTIMIZE bitor B01111111) == B11111111)
#if defined(REDUCE_RAM_WEIGHTS_COMMON)
#undef MSG3
#define MSG3 \n⌥▌" [_] B00110000 [ⓘ] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] There is no need for (REDUCE_RAM_WEIGHTS_LVLX)"
#endif
#define NO_BACKPROP
#define USE_INTERNAL_EEPROM
#if defined(ACTIVATION__PER_LAYER)
#define SIZEOF_FX sizeof(byte)
#else
#define SIZEOF_FX 0
#endif
#if defined(AS_SOFTWARE_EMULATED_EEPROM)
#undef MSG9
#define MSG9 \n⌥▌" [2] B10000000 [⚠] [𝗪𝗔𝗥𝗡𝗜𝗡𝗚] ESP32 MCUs are defined (AS_SOFTWARE_EMULATED_EEPROM)."
#endif
#undef MSG8
#define MSG8 \n⌥▌" [2] B10000000 [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Backpropagation is not Allowed with (USE_INTERNAL_EEPROM)."
#if !defined(EEPROM_h) || !defined(__EEPROM_H__)
// for some reason it says 'EEPROM' was not declared in this scope even though i #include it below. So it needs it at the sketch i guess too
#include <EEPROM.h>
#define INCLUDES_EEPROM_H
#endif
#endif
#if ((_2_OPTIMIZE bitor B10111111) == B11111111)
#undef MSG11
#define MSG11 \n⌥▌" [2] B01000000 [ⓘ] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Biases are disabled (NO_BIAS)."
#define HAS_NO_BIAS true
#define NO_BIAS
#endif
#if ((_2_OPTIMIZE bitor B11011111) == B11111111)
#if defined(NO_BIAS)
#error "You can't have both NO_BIAS and MULTIPLE_BIASES_PER_LAYER."
#endif
#undef MSG12
#define MSG12 \n⌥▌" [2] B00100000 [ⓘ] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] You are using (MULTIPLE_BIASES_PER_LAYER)."
#define MULTIPLE_BIASES_PER_LAYER
#endif
#if ((_2_OPTIMIZE bitor B11101111) == B11111111)
#undef MSG13
#define MSG13 \n⌥▌" [2] B00010000 [ⓘ] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] You are using F() macro for NN.print()."
#undef F_MACRO
#define F_MACRO F
#endif
#endif
// REMINDER DO NOT UNCOMMENT THIS!!!!!! BECAUSE IT WILL RESULT ON ESP32-C3 NOT COMPILING WITH USE_PROGMEM or USE_INTERNAL_EEPROM AT ALL | i keep it here as a future reminder
// #if defined(ESP_SUPPORTS_SIMD) and (defined(USE_PROGMEM) or defined(USE_INTERNAL_EEPROM))
// #error "There's no support for SIMD use with USE_PROGMEM or USE_INTERNAL_EEPROM yet."
// #endif
#define ACT1 0
#define ACT2 0
#define ACT3 0
#define ACT4 0
#define ACT5 0
#define ACT6 0
#define ACT7 0
#define ACT8 0
#define ACT9 0
#define ACT10 0
#define ACT11 0
#define ACT12 0
#define ACT13 0
#define ACT14 0
// Custom Activation Fuctions
#define CACT1 0
#define CACT2 0
#define CACT3 0
#define CACT4 0
#define CACT5 0
// Custom Activation Fuctions Definitions (eg. DFLOAT CUSTOM_AFX(...);)
#define CUSTOM_AF1_DEFINITION
#define CUSTOM_AF2_DEFINITION
#define CUSTOM_AF3_DEFINITION
#define CUSTOM_AF4_DEFINITION
#define CUSTOM_AF5_DEFINITION
#define CUSTOM_DF1_DEFINITION
#define CUSTOM_DF2_DEFINITION
#define CUSTOM_DF3_DEFINITION
#define CUSTOM_DF4_DEFINITION
#define CUSTOM_DF5_DEFINITION
// STR(AX) | pragma message | A = Activation | AL = All | CA = Custom Activation
#define A1
#define A2
#define A3
#define A4
#define A5
#define A6
#define A7
#define A8
#define A9
#define A10
#define A11
#define A12
#define A13
#define A14
#define AL
#define CA1
#define CA2
#define CA3
#define CA4
#define CA5
// NB = NO BACKPROP | CSTA = Custom Activation message | NB_CA5 = NB message for CAs
#define NB_CA1
#define NB_CA2
#define NB_CA3
#define NB_CA4
#define NB_CA5
#define CSTA
#define NB
#if defined(Sigmoid) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef A1
#undef ACT1
#undef Sigmoid
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACT1 1
#define ACTIVATION
#define ACTIVATION_FUNCTION Sigmoid
#define Sigmoid Sigmoid
#define A1 |‣ Sigmoid
#endif
#if defined(Tanh) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef A2
#undef ACT2
#undef Tanh
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACT2 1
#define ACTIVATION
#define ACTIVATION_FUNCTION Tanh
#define Tanh Tanh
#define A2 |‣ Tanh
#endif
#if defined(ReLU) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef A3
#undef ACT3
#undef ReLU
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACT3 1
#define ACTIVATION
#define ACTIVATION_FUNCTION ReLU
#define SUPPORTS_CLIPPING // i mean "supports" / usually-needs ?
#define ReLU ReLU
#define A3 |‣ ReLU
#endif
#if defined(LeakyELU) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef A4
#undef ACT4
#undef LeakyELU
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACT4 1
#define ACTIVATION
#define ACTIVATION_FUNCTION LeakyELU
#define SUPPORTS_CLIPPING // i mean "supports" / usually-needs ?
#define LeakyELU LeakyELU
#define A4 |‣ LeakyELU
#endif
#if defined(ELU) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef A5
#undef ACT5
#undef ELU
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACT5 1
#define ACTIVATION
#define ACTIVATION_FUNCTION ELU
#define SUPPORTS_CLIPPING // i mean "supports" / usually-needs ?
#define ELU ELU
#define A5 |‣ ELU
#endif
#if defined(SELU) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef A6
#undef ACT6
#undef SELU
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACT6 1
#define ACTIVATION
#define ACTIVATION_FUNCTION SELU
#define SELU SELU
#define A6 |‣ SELU
#endif
#if defined(Softmax) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef A7
#undef ACT7
#undef Softmax
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACT7 1
#define ACTIVATION
#define ACTIVATION_FUNCTION Softmax
#define Softmax Softmax
#define A7 |‣ Softmax
#endif
#if defined(Identity) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef A8
#undef ACT8
#undef Identity
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACT8 1
#define ACTIVATION
#define ACTIVATION_FUNCTION Identity
#define Identity Identity
#define A8 |‣ Identity
#endif
#if defined(BinaryStep) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef NB
#undef A9
#undef ACT9
#undef BinaryStep
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define NO_BACKPROP
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define ACT9 1
#define ACTIVATION
#define ACTIVATION_FUNCTION BinaryStep
#define BinaryStep BinaryStep
#define A9 |‣ BinaryStep
#endif
#if defined(Softplus) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef NB
#undef A10
#undef ACT10
#undef Softplus
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define NO_BACKPROP
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define ACT10 1
#define ACTIVATION
#define ACTIVATION_FUNCTION Softplus
#define Softplus Softplus
#define A10 |‣ Softplus
#endif
#if defined(SiLU) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef NB
#undef A11
#undef ACT11
#undef SiLU
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define NO_BACKPROP
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define ACT11 1
#define ACTIVATION
#define ACTIVATION_FUNCTION SiLU
#define SiLU SiLU
#define A11 |‣ SiLU
#endif
#if defined(GELU) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef NB
#undef A12
#undef ACT12
#undef GELU
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define NO_BACKPROP
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define ACT12 1
#define ACTIVATION
#define ACTIVATION_FUNCTION GELU
#define GELU GELU
#define A12 |‣ GELU
#endif
#if defined(Mish) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef NB
#undef A13
#undef ACT13
#undef Mish
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define NO_BACKPROP
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define ACT13 1
#define ACTIVATION
#define ACTIVATION_FUNCTION Mish
#define Mish Mish
#define A13 |‣ Mish
#endif
#if defined(Gaussian) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef NB
#undef A14
#undef ACT14
#undef Gaussian
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define NO_BACKPROP
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define ACT14 1
#define ACTIVATION
#define ACTIVATION_FUNCTION Gaussian
#define Gaussian Gaussian
#define A14 |‣ Gaussian
#endif
#define CONCATENATE_WITHOUT_SPACE(x, y) CONCATENATE_IMPL(x, y)
#define CONCATENATE_IMPL(x, y) x ## y
#if defined(CUSTOM_AF1) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef CA1
#undef CSTA
#undef CACT1
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef CUSTOM_AF1_DEFINITION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACTIVATION
#define CUSTOM_AF1_DEFINITION DFLOAT CUSTOM_AF1(const DFLOAT &x);
#define CSTA ||| (𝗖𝗨𝗦𝗧𝗢𝗠)
#if defined(CUSTOM_DF1)
#undef CUSTOM_DF1
#undef CUSTOM_DF1_DEFINITION
#define CUSTOM_DF1 CONCATENATE_WITHOUT_SPACE(CUSTOM_AF1, Der)
#define CUSTOM_DF1_DEFINITION DFLOAT CUSTOM_DF1(const float &fx);
#else
#define NO_BACKPROP
#undef NB
#undef NB_CA1
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define NB_CA1 |‣ CUSTOM_AF1
#endif
#define CACT1 1
#define ACTIVATION_FUNCTION CUSTOM_AF1
#define CA1 |‣ CUSTOM_AF1
#endif
#if defined(CUSTOM_AF2) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef CA2
#undef CSTA
#undef CACT2
#undef ACTIVATION
#undef ACTIVATION_FUNCTION
#undef CUSTOM_AF2_DEFINITION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACTIVATION
#define CUSTOM_AF2_DEFINITION DFLOAT CUSTOM_AF2(const DFLOAT &x);
#define CSTA ||| (𝗖𝗨𝗦𝗧𝗢𝗠)
#if defined(CUSTOM_DF2)
#undef CUSTOM_DF2
#undef CUSTOM_DF2_DEFINITION
#define CUSTOM_DF2 CONCATENATE_WITHOUT_SPACE(CUSTOM_AF2, Der)
#define CUSTOM_DF2_DEFINITION DFLOAT CUSTOM_DF2(const DFLOAT &fx);
#else
#define NO_BACKPROP
#undef NB
#undef NB_CA2
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define NB_CA2 |‣ CUSTOM_AF2
#endif
#define CACT2 1
#define ACTIVATION_FUNCTION CUSTOM_AF2
#define CA2 |‣ CUSTOM_AF2
#endif
#if defined(CUSTOM_AF3) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef CA3
#undef CSTA
#undef CACT3
#undef ACTIVATION
#undef CUSTOM_AF3_DEFINITION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACTIVATION
#define CUSTOM_AF3_DEFINITION DFLOAT CUSTOM_AF3(const DFLOAT &x);
#define CSTA ||| (𝗖𝗨𝗦𝗧𝗢𝗠)
#if defined(CUSTOM_DF3)
#undef CUSTOM_DF3
#undef CUSTOM_DF3_DEFINITION
#define CUSTOM_DF3 CONCATENATE_WITHOUT_SPACE(CUSTOM_AF3, Der)
#define CUSTOM_DF3_DEFINITION DFLOAT CUSTOM_DF3(const DFLOAT &fx);
#else
#define NO_BACKPROP
#undef NB
#undef NB_CA3
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define NB_CA3 |‣ CUSTOM_AF3
#endif
#define CACT3 1
#define ACTIVATION_FUNCTION CUSTOM_AF3
#define CA3 |‣ CUSTOM_AF3
#endif
#if defined(CUSTOM_AF4) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef CA4
#undef CSTA
#undef CACT4
#undef ACTIVATION
#undef CUSTOM_AF4_DEFINITION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACTIVATION
#define CUSTOM_AF4_DEFINITION DFLOAT CUSTOM_AF4(const DFLOAT &x);
#define CSTA ||| (𝗖𝗨𝗦𝗧𝗢𝗠)
#if defined(CUSTOM_DF4)
#undef CUSTOM_DF4
#undef CUSTOM_DF4_DEFINITION
#define CUSTOM_DF4 CONCATENATE_WITHOUT_SPACE(CUSTOM_AF4, Der)
#define CUSTOM_DF4_DEFINITION DFLOAT CUSTOM_DF4(const DFLOAT &fx);
#else
#define NO_BACKPROP
#undef NB
#undef NB_CA4
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define NB_CA4 |‣ CUSTOM_AF4
#endif
#define CACT4 1
#define ACTIVATION_FUNCTION CUSTOM_AF4
#define CA4 |‣ CUSTOM_AF4
#endif
#if defined(CUSTOM_AF5) && (defined(ACTIVATION__PER_LAYER) || !defined(ACTIVATION))
#undef CA5
#undef CSTA
#undef CACT5
#undef ACTIVATION
#undef CUSTOM_AF5_DEFINITION
#undef ACTIVATION_FUNCTION
#undef DEFAULT_ACTIVATION_FUNCTION
#define ACTIVATION
#define CUSTOM_AF5_DEFINITION DFLOAT CUSTOM_AF5(const DFLOAT &x);
#define CSTA ||| (𝗖𝗨𝗦𝗧𝗢𝗠)
#if defined(CUSTOM_DF5)
#undef CUSTOM_DF5
#undef CUSTOM_DF5_DEFINITION
#define CUSTOM_DF5 CONCATENATE_WITHOUT_SPACE(CUSTOM_AF5, Der)
#define CUSTOM_DF5_DEFINITION DFLOAT CUSTOM_DF5(const DFLOAT &fx);
#else
#define NO_BACKPROP
#undef NB
#undef NB_CA5
#define NB | 𝗡𝗢_𝗕𝗔𝗖𝗞𝗣𝗥𝗢𝗣 SUPPORT FOR:
#define NB_CA5 |‣ CUSTOM_AF5
#endif
#define CACT5 1
#define ACTIVATION_FUNCTION CUSTOM_AF5
#define CA5 |‣ CUSTOM_AF5
#endif
#define NUM_OF_USED_ACTIVATION_FUNCTIONS (ACT1 + ACT2 + ACT3 + ACT4 + ACT5 + ACT6 + ACT7 + ACT8 + ACT9 + ACT9 + ACT10 + ACT11 + ACT12 + ACT13 + ACT14 + CACT1 + CACT2 + CACT3 + CACT4 + CACT5)
#if !defined(ACTIVATION)
#if defined(ACTIVATION__PER_LAYER)
// ACTIVATE ALL FUNCTIONS
#define NO_BACKPROP
#define ALL_ACTIVATION_FUNCTIONS
#define AL |‣ "(ALL_ACTIVATION_FUNCTIONS)"
#undef NUM_OF_USED_ACTIVATION_FUNCTIONS
#define NUM_OF_USED_ACTIVATION_FUNCTIONS (14 + CACT1 + CACT2 + CACT3 + CACT4 + CACT5)
#undef MSG10
#define MSG10 \n⌥▌"////////////// [⚠] [𝗥𝗲𝗺𝗶𝗻𝗱𝗲𝗿] Backpropagation is not Allowed With (ALL_ACTIVATION_FUNCTIONS)."
#else
//ENABLE DEFAULT ACTIVATION FUNCTION
// i will also create a mechanism to show #error if more than one is defined with B opperations?
#undef A1
#undef Sigmoid
#define DEFAULT_ACTIVATION_FUNCTION
#define ACTIVATION //Sigmoid default but for more than one you must declare it
#define ACTIVATION_FUNCTION Sigmoid
#define Sigmoid Sigmoid
#define A1 |‣ Sigmoid
#endif
#endif
#define MAKE_FUN_NAME1(actname,value) actname(value)
#define MAKE_FUN_NAME2(actname,value) actname ## Der(value)
#define ACTIVATE_WITH(actname,value) MAKE_FUN_NAME1(actname,value)
#define DERIVATIVE_OF(actname,value) MAKE_FUN_NAME2(actname,value)
//LOSS | If there's no Loss function definition and no DISABLE_MSE definition, define the Default | MEAN_SQUARED_ERROR = Default
#if !defined(CATEGORICAL_CROSS_ENTROPY) and !defined(BINARY_CROSS_ENTROPY) and !defined(MEAN_SQUARED_ERROR) and !defined(DISABLE_MSE)
#define DEFAULT_LOSS
#endif
#define STR_HELPER(x) #x
#define STR(x) STR_HELPER(x)
#define INFORMATION LOVE MSG0 MSG1 MSG2 MSG3 MSG4 MSG5 MSG6 MSG7 MSG8 MSG9 MSG10 MSG11 MSG12 MSG13 \n\n 𝗨𝗦𝗜𝗡𝗚 [ƒx] AL A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 CSTA CA1 |⌥|\n\n NB A9 A10 A11 A12 A13 A14 NB_CA1 NB_CA2 NB_CA3 NB_CA4 NB_CA5
#pragma message( STR(INFORMATION) )
// i might change static variables to plain variables and just pass a pointer from outer class?
class NeuralNetwork
{
private:
#if defined(USE_INTERNAL_EEPROM)
unsigned int address = 0;
#if defined(ACTIVATION__PER_LAYER)
byte F1; // first activation function only for use in FdF_Individual_iEEPROM
#endif
#endif
int Individual_Input = 0;
bool isAllocdWithNew = true; // If weights and biases are allocated with new, for the destractor later | TODO: #if !defined(USE_PROGMEM) and etc. in constructors
bool FIRST_TIME_FDFp = false; // determines if there are trashes left in last outputs .
const DFLOAT *_inputs; // Pointer to primary/first Inputs Array from Sketch .
// (Used for backpropagation) .
#if defined(SUPPORTS_SD_FUNCTIONALITY)
bool isAlreadyLoadedOnce = false; // Determines if load() function has been called more than once, so the next time it will clean | I mean... if you use sd library then you have a spare byte right?
#endif
class Layer
{
public:
#if !defined(REDUCE_RAM_STATIC_REFERENCE)
NeuralNetwork *me;
#endif
unsigned int _numberOfInputs; // # of neurons in the previous layer.
unsigned int _numberOfOutputs; // # of neurons in the current layer.
#if !defined(NO_BIAS)
IS_CONST DFLOAT *bias; // bias of this layer | or biases if MULTIPLE_BIASES_PER_LAYER enabled | Please do not wrap it into #ifdef USE_INTERNAL_EEPROM because it is being used when FdF_Individual_iEEPROM
#endif
DFLOAT *outputs; // outputs of this layer [1D Array] pointers.
//#if defined(REDUCE_RAM_WEIGHTS_LVL1)
// DFLOAT *weights; // weights of this layer [1D Array] pointers. #(used if #REDUCE_RAM_WEIGHTS_LVL1 defined)
//#endif
#if !defined(REDUCE_RAM_WEIGHTS_COMMON)
IS_CONST DFLOAT **weights; // weights of this layer [2D Array] pointers. #(used if NOT #REDUCE_RAM_WEIGHTS_COMMON defined)
#endif
#if !defined(NO_BACKPROP)
DFLOAT *preLgamma; // gamma of previous layer [1D Array] pointers.
#endif
// Default Constractor .
// #0 Constructor .
// #1 Constructor With default/("probably") preptained, weights and biases.
Layer();
#if !defined(USE_PROGMEM)
// ^^^^^ I keep this USE_PROGMEM instead of NO_BACKPROP because that way if I add a NeuralNetwork::feedforward_PROGMEM, with -fpermisive someone will be able to use both RAM-NN and PROGMEM-NN at the same time
Layer(const unsigned int &NumberOfInputs, const unsigned int &NumberOfOutputs, NeuralNetwork * const NN = NULL); // #0 | defined(NO_BIAS) is there 2024-03-02
#endif
#if defined(NO_BIAS)
Layer(const unsigned int &NumberOfInputs, const unsigned int &NumberOfOutputs, IS_CONST DFLOAT *default_Weights, NeuralNetwork * const NN = NULL); // #1 #(used if NOT #REDUCE_RAM_WEIGHTS_LVL2 defined)
Layer(const unsigned int &NumberOfInputs, const unsigned int &NumberOfOutputs, bool has_no_bias, NeuralNetwork * const NN = NULL); // has_no_bias is something the compiler 99% will optimize\remove | This is just a trick for distinguishing the constructors from the one who auto-generates the weights
#else
Layer(const unsigned int &NumberOfInputs, const unsigned int &NumberOfOutputs, IS_CONST DFLOAT *default_Bias, NeuralNetwork * const NN = NULL); // #(used if #REDUCE_RAM_WEIGHTS_LVL2 defined)
Layer(const unsigned int &NumberOfInputs, const unsigned int &NumberOfOutputs, IS_CONST DFLOAT *default_Weights, IS_CONST DFLOAT *default_Bias, NeuralNetwork * const NN = NULL); // #1 #(used if NOT #REDUCE_RAM_WEIGHTS_LVL2 defined)
#endif
void FeedForward_Individual(const DFLOAT &input, const int &j);
void FdF_Individual_PROGMEM(const DFLOAT &input, const int &j);
#if defined(USE_INTERNAL_EEPROM)
void FdF_Individual_iEEPROM(const DFLOAT &input, const int &j);
#endif
void FeedForward(const DFLOAT *inputs); // Calculates the outputs() of layer.
void FdF_PROGMEM(const DFLOAT *inputs);
#if defined(USE_INTERNAL_EEPROM)
void FdF_IN_EEPROM(const DFLOAT *inputs);
#endif
#if !defined (NO_BACKPROP)
void BackPropOutput(const DFLOAT *_expected_, const DFLOAT *inputs);
void BackPropHidden(const Layer *frontLayer, const DFLOAT *inputs);
#endif
// "Extra Math"
DFLOAT erf(DFLOAT x);
//if i acctually consider using other complicated activation functions i might need to think again about the before_Activation_output Array [...]
DFLOAT Sigmoid (const DFLOAT &x ); // Sigmoid Activation Function 1/(1+e^(-x)) .
DFLOAT SigmoidDer (const DFLOAT &fx); // Derivative of Sigmoid Activation Function.
DFLOAT Tanh (const DFLOAT &x );
DFLOAT TanhDer (const DFLOAT &fx);
DFLOAT ReLU (const DFLOAT &x );
DFLOAT ReLUDer (const DFLOAT &fx); // x is also fx on ReLU
DFLOAT LeakyELU (const DFLOAT &x );
DFLOAT LeakyELUDer(const DFLOAT &fx);
DFLOAT ELU (const DFLOAT &x ); // α = 1
DFLOAT ELUDer (const DFLOAT &fx);
DFLOAT SELU (const DFLOAT &x ); // Maybe use https://stackoverflow.com/a/42264773/11465149
DFLOAT SELUDer (const DFLOAT &fx);
void Softmax ();
DFLOAT SoftmaxSum (const DFLOAT &x ); // returns exp(outputs[i] + (*bias)) to each output and then sums it into sumOfSoftmax
DFLOAT SoftmaxDer (const DFLOAT &fx);
DFLOAT Identity (const DFLOAT &x );
DFLOAT IdentityDer(const DFLOAT &x );
// Custom Activation Fuctions Definitions (eg. DFLOAT CUSTOM_AFX(...);)
CUSTOM_AF1_DEFINITION
CUSTOM_AF2_DEFINITION
CUSTOM_AF3_DEFINITION
CUSTOM_AF4_DEFINITION
CUSTOM_AF5_DEFINITION
CUSTOM_DF1_DEFINITION
CUSTOM_DF2_DEFINITION
CUSTOM_DF3_DEFINITION
CUSTOM_DF4_DEFINITION
CUSTOM_DF5_DEFINITION
// NO_BACKPROP support
DFLOAT BinaryStep (const DFLOAT &x );
DFLOAT Softplus (const DFLOAT &x );
DFLOAT SiLU (const DFLOAT &x );
DFLOAT GELU (const DFLOAT &x );
DFLOAT Mish (const DFLOAT &x );
DFLOAT Gaussian (const DFLOAT &x );
#if defined(USE_INTERNAL_EEPROM)
void print_INTERNAL_EEPROM();
#endif
void print_PROGMEM();
void print();
};
//just like "static DFLOAT *wights" [...] i might have a function to switch?
#if defined(ACTIVATION__PER_LAYER)
typedef DFLOAT (Layer::*method_function) (const DFLOAT &);
inline static const method_function (activation_Function_ptrs)[NUM_OF_USED_ACTIVATION_FUNCTIONS] = {
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(Sigmoid)
&Layer::Sigmoid,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(Tanh)
&Layer::Tanh,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(ReLU)
&Layer::ReLU,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(LeakyELU)
&Layer::LeakyELU,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(ELU)
&Layer::ELU,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(SELU)
&Layer::SELU,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(Softmax)
&Layer::SoftmaxSum,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(Identity)
&Layer::Identity,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(BinaryStep)
&Layer::BinaryStep,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(Softplus)
&Layer::Softplus,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(SiLU)
&Layer::SiLU,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(GELU)
&Layer::GELU,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(Mish)
&Layer::Mish,
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(Gaussian)
&Layer::Gaussian,
#endif
#if defined(CUSTOM_AF1)
&Layer::CUSTOM_AF1,
#endif
#if defined(CUSTOM_AF2)
&Layer::CUSTOM_AF2,
#endif
#if defined(CUSTOM_AF3)
&Layer::CUSTOM_AF3,
#endif
#if defined(CUSTOM_AF4)
&Layer::CUSTOM_AF4,
#endif
#if defined(CUSTOM_AF5)
&Layer::CUSTOM_AF5,
#endif
};
#if !defined(NO_BACKPROP)
inline static const method_function (derivative_Function_ptrs)[NUM_OF_USED_ACTIVATION_FUNCTIONS] = {
#if defined(Sigmoid)
&Layer::SigmoidDer,
#endif
#if defined(Tanh)
&Layer::TanhDer,
#endif
#if defined(ReLU)
&Layer::ReLUDer,
#endif
#if defined(LeakyELU)
&Layer::LeakyELUDer,
#endif
#if defined(ELU)
&Layer::ELUDer,
#endif
#if defined(SELU)
&Layer::SELUDer,
#endif
#if defined(Softmax)
&Layer::SoftmaxDer,
#endif
#if defined(Identity)
&Layer::IdentityDer,
#endif
#if defined(CUSTOM_DF1)
&Layer::CUSTOM_DF1,
#endif
#if defined(CUSTOM_DF2)
&Layer::CUSTOM_DF2,
#endif
#if defined(CUSTOM_DF3)
&Layer::CUSTOM_DF3,
#endif
#if defined(CUSTOM_DF4)
&Layer::CUSTOM_DF4,
#endif
#if defined(CUSTOM_DF5)
&Layer::CUSTOM_DF5,
#endif
};
#endif
//https://stackoverflow.com/a/31708674/11465149
//http://www.cs.technion.ac.il/users/yechiel/c++-faq/array-memfnptrs.html // ??? [x]
#endif
public:
#if defined(REDUCE_RAM_STATIC_REFERENCE)
static NeuralNetwork *me;
#endif
// Guessing that BackProp wont be called more than once excactly after a feedforward call, IF REDUCE_RAM_WEIGHTS_LVL2 else i should have had a temp weights-size variable or something
// need to add a function for those who want to switch/redirect the pointer to a deferent weight Array... maybe? ... Why not?!? lol.
// issues with multiple NNs too ...
#if defined(REDUCE_RAM_WEIGHTS_LVL2)
IS_CONST DFLOAT *weights; // pointer to sketch's Array of Weights. #(used if #REDUCE_RAM_WEIGHTS_LVL2 defined)
int i_j = 0;
#endif
#if defined(ACTIVATION__PER_LAYER)
unsigned int AtlayerIndex; // who 's gonna make a network with more than 255 layers :P ?!?!? but anyways i will use int or i will add byte too, using a property definition with bunch of other things like this for max optimization ... lol
byte *ActFunctionPerLayer; // lets be realistic... byte because. xD
#endif
// #5 This is the sum of the exp(outputs) of the previous layer (for All and each layer)
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(Softmax)
DFLOAT sumOfSoftmax = 0;
#endif
// no negative values allowed, (just saying..)
// Alphas and Lamdas of Activation Functions | #6 MACROS.
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(LeakyELU)
DFLOAT AlphaLeaky = 0.01 ;
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(SELU)
DFLOAT AlphaSELU = 1.6733 ;
DFLOAT LamdaSELU = 1.0507 ;
#endif
#if defined(ALL_ACTIVATION_FUNCTIONS) or defined(ELU)
DFLOAT AlphaELU = 1 ;
#endif
Layer *layers; // layers in the network [1D Array].
unsigned int numberOflayers = 0; // Number of layers.
// unsigned float doesn't exist..? lol
#if !defined (NO_BACKPROP)
DFLOAT LearningRateOfWeights = 0.33 ; // Learning Rate of Weights.
#if !defined(NO_BIAS)
DFLOAT LearningRateOfBiases = 0.066; // Learning Rate of Biases .
#endif
#endif
// LOSS VARIABLES | V Because #6