深度学习BP算法之C语言实现

最新推荐文章于 2025-06-03 10:47:52 发布

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最新推荐文章于 2025-06-03 10:47:52 发布

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#include<stdio.h>
#include <stdlib.h>
#include <math.h>
#define ETA 1//Learning_rate
#define PRECISION 0.00001

typedef struct Neuron
{
	double input;
	double output;
	double* weights;
	double Error;

} NEURON;
typedef struct Layer
{
	int numberOfNeurons;
	NEURON *neurons;
} LAYER;
typedef struct NNet {
	int numberOfLayers;
	LAYER *layers;
} NNET;
/////////////function
double sigmoid(double v)
{
	return 1 / (1 + exp(-v));
}

double randomWeight()  //random weight generator between -0.5 ~ 0.5 
{
	return ((int)rand() % 100000) / (float)100000 - 1;
}

void createNetWorks(NNET *nnet,int NumberOfLayers,int* NumberOfNeurons) {
	nnet->numberOfLayers = NumberOfLayers;
	nnet->layers =(LAYER*) malloc(NumberOfLayers * sizeof(LAYER));
	for (int i = 0; i < NumberOfLayers; i++) {
		nnet->layers[i].numberOfNeurons = NumberOfNeurons[i];
		nnet->layers[i].neurons = (NEURON*)malloc(NumberOfNeurons[i] * sizeof(NEURON));
	}
}

void init(NNET