ActivationFunction.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "ActivationFunction.h"
#include "matrix.h"

Include dependency graph for ActivationFunction.c:

Go to the source code of this file.

Functions
int	w_tanh_init (void **privp)
int	w_tanh_destroy (void *priv)
int	w_tanh_read (void *priv, FILE *fh, unsigned flags)
int	w_tanh_write (void *priv, FILE *fh, unsigned flags)
int	w_tanh_eval (void *priv, double in, int order, double *outp)
int	w_linear_init (void **privp)
int	w_linear_destroy (void *priv)
int	w_linear_read (void *priv, FILE *fh, unsigned flags)
int	w_linear_write (void *priv, FILE *fh, unsigned flags)
int	w_linear_eval (void *priv, double in, int order, double *outp)

Function Documentation

int w_linear_destroy

(

void *

priv

)

Definition at line 128 of file ActivationFunction.c.

Referenced by ANN_init().

{
#if 0
        w_tanh_t        *data = (w_tanh_t *)priv;
#endif

        free(priv);

        return 0;
}

int w_linear_eval	(	void *	priv,
		double	in,
		int	order,
		double *	outp
	)

Definition at line 168 of file ActivationFunction.c.

References w_linear_t::m, and w_linear_t::q.

Referenced by ANN_init().

{
        w_linear_t        *data = (w_linear_t *)priv;
        double          y;

        switch (order) {
        case 0:
                y = data->m*in + data->q;
                break;

        case 1:
                y = data->m;
                break;

        default:
                return 1;
        }

        *outp = y;

        return 0;
}

int w_linear_init

(

void **

privp

)

Definition at line 120 of file ActivationFunction.c.

Referenced by ANN_init().

{
        *privp = malloc(sizeof(w_linear_t));

        return (*privp == NULL);
}

int w_linear_read	(	void *	priv,
		FILE *	fh,
		unsigned	flags
	)

Definition at line 140 of file ActivationFunction.c.

References w_linear_t::m, and w_linear_t::q.

Referenced by ANN_init().

{
        w_linear_t        *data = (w_linear_t *)priv;

        fscanf(fh, "%lf", &data->m);
        fscanf(fh, "%lf", &data->q);

        return 0;
}

int w_linear_write	(	void *	priv,
		FILE *	fh,
		unsigned	flags
	)

Definition at line 151 of file ActivationFunction.c.

References w_linear_t::m, w_linear_t::q, W_F_BIN, and W_F_TEXT.

Referenced by ANN_init().

{
        w_linear_t        *data = (w_linear_t *)priv;

        if (flags & W_F_BIN) {
                fprintf(fh, "%d\n%e %e",
                        2,data->m, data->q);

        } else if (flags & W_F_TEXT) {
                fprintf(fh, "linear m=%e q=%e\n",
                        data->m, data->q);
        }

        return 0;
}

int w_tanh_destroy

(

void *

priv

)

Definition at line 54 of file ActivationFunction.c.

Referenced by ANN_init().

{
#if 0
        w_tanh_t        *data = (w_tanh_t *)priv;
#endif

        free(priv);

        return 0;
}

int w_tanh_eval	(	void *	priv,
		double	in,
		int	order,
		double *	outp
	)

Definition at line 94 of file ActivationFunction.c.

References w_tanh_t::alpha, w_tanh_t::beta, and grad::tanh().

Referenced by ANN_init().

{
        w_tanh_t        *data = (w_tanh_t *)priv;
        double          y;

        switch (order) {
        case 0:
                y = data->alpha*tanh(data->beta*in);
                break;

        case 1:
                y = tanh(data->beta*in);
                y = data->alpha*data->beta*(1. - y*y);
                break;

        default:
                return 1;
        }

        *outp = y;

        return 0;
}

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int w_tanh_init

(

void **

privp

)

Definition at line 46 of file ActivationFunction.c.

Referenced by ANN_init().

{
        *privp = malloc(sizeof(w_tanh_t));

        return (*privp == NULL);
}

int w_tanh_read	(	void *	priv,
		FILE *	fh,
		unsigned	flags
	)

Definition at line 66 of file ActivationFunction.c.

References w_tanh_t::alpha, and w_tanh_t::beta.

Referenced by ANN_init().

{
        w_tanh_t        *data = (w_tanh_t *)priv;

        fscanf(fh, "%lf", &data->alpha);
        fscanf(fh, "%lf", &data->beta);

        return 0;
}

int w_tanh_write	(	void *	priv,
		FILE *	fh,
		unsigned	flags
	)

Definition at line 77 of file ActivationFunction.c.

References w_tanh_t::alpha, w_tanh_t::beta, W_F_BIN, and W_F_TEXT.

Referenced by ANN_init().

{
        w_tanh_t        *data = (w_tanh_t *)priv;

        if (flags & W_F_BIN) {
                fprintf(fh, "%d\n%e %e",
                        1,data->alpha, data->beta);

        } else if (flags & W_F_TEXT) {
                fprintf(fh, "tanh alpha=%e beta=%e\n",
                        data->alpha, data->beta);
        }

        return 0;
}