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鸽子
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864天前/*神经元模型*/ |
#include < math.h> |
#include < stdio.h> |
#include < time.h> |
#include < stdlib.h> |
#include < conio.h> |
#define AND1 .571388 |
#define AND2 .560999 |
#define OR1 1.149045 |
#define OR2 1.131896 |
#define SITA 1 |
#define NIU .1 |
#define OMIGA 50 |
float w[2]; |
float terg[4][3]; |
main() { |
int m_result = 1, s; |
float w1[2]; |
while ( m_result != 5 ) { |
m_result = menu ( m_result ); |
date(); |
switch ( m_result ) { |
case ( 1 ) : /* 学习*/ |
case ( 3 ) : |
randomize(); /*重新学习*/ |
w[0] = random ( 80 ) +10; |
w[0] = w[0]/100.0; |
w[1] = random ( 80 ) +10; |
w[1] = w[1]/100.0; |
study(); |
break; |
case ( 2 ) : |
practic ( w ); /*实践新模型*/ |
break; |
case ( 4 ) : |
printf ( " what do you want to see, OR or AND?(1/2) " ); |
scanf ( " %d" , & s ); |
if ( s==1 ) {w1[0] = OR1; w1[1] = OR2; } else if ( s==2 ) {w1[0] = AND1; w1[1] = AND2; } else break; |
practic ( w1 ); |
break; /*演示已有模型*/ |
default: {} |
} /*End Switch*/ |
} /*End While */ |
clrscr(); |
printf ( " Good Bye!" ); |
} |
menu ( int r ) { |
int r1; |
clrscr(); |
printf ( " \n\n\n" ); |
printf ( " \t\t1\tStudy a Model\n" ); /* 学习 */ |
printf ( " \t\t2\tPratice the model\n" ); /*重新学习 */ |
printf ( " \t\t3\tDefail the MOdel\n" ); /*实践新模型 */ |
printf ( " \t\t4\tPrepared Model\n" ); /*演示已有模型*/ |
printf ( " \t\t5\tEnd\n" ); /*结束 */ |
printf ( " \n\n\t\tWhat do you want to choice?(%d)" , r ); |
r1 = getche(); |
if ( r1!=13 ) r = r1-48; |
return ( r ); |
} |
date() { /*显示模型*/ |
int i, j; |
clrscr(); |
for ( i = 0; i < 4; i++ ) |
for ( j = 0; j< 3; j++ ) { |
gotoxy ( 20+j*4, i+5 ); |
printf ( "%.0f", terg[i][j] ); |
} |
printf ( "\n\n\tThe quarities:%f, %f \n", w[0], w[1] ); |
} |
study() { /*学习子函数*/ |
float x, y, width; |
int wrong = 1, i, total = 0; |
input(); /*andinput(); */ /*orinput(); */ |
while ( wrong ) { |
wrong = 0; |
for ( i = 0; i< 4; i++ ) { |
x = OMIGA* ( w[0]*terg[i][0]+w[1]*terg[i][1]-SITA ); |
y = 1.0/ ( 1.0+exp ( -x ) ); |
width = terg[i][2]-y; /*误差 = "教师信号-Y" */ |
if ( fabs ( width ) >=.01 ) { |
wrong = 1; |
total++; |
w[0] = w[0]* ( 1+width*NIU ); /*改变权值0*/ |
w[1] = w[1]* ( 1+width*NIU ); /*改变权值1*/ |
if ( total> =200 ) /*防止程序进入死循环*/ |
{error(); return 1; } |
} |
} |
}/*若i的四次循环均满足" fabs(width)> =.01" 则wrong=0, 结束循环*/ |
} |
practic ( quarity ) /*实践新模型或演示已有模型, 由quarity[]值决定*/ |
float quarity[2]; |
{ |
int k, y; |
float x, width, x1, x2; |
for ( k = 0; k < 4; k++ ) { |
gotoxy ( 0, 4+k*3 ); |
printf ( "\nPlease input :x1, x2 " ); |
scanf ( "%f, %f", &x1, &x2 ); |
x = OMIGA* ( quarity[0]*x1+quarity[1]*x2-SITA ); |
y = 1.0/ ( 1.0+exp ( -x ) ) +.01; /*精度为0.01*/ |
printf ( "\t\t\ty = "%d" , y); |
getch(); |
} |
} |
input() /*当选择"学习"功能时输入事件*/ |
{int i; |
printf("Please input the 4 groups data:\n\n"); |
for(i = 0; i< 4; i++){ |
printf("\tThe %d group x1, x2, teacher's point: ", i+1); |
scanf("%f, %f, %f", &terg[i][0], &terg[i][1], &terg[i][2]); |
} |
clrscr(); |
} |
andinput() |
{terg[0][0] = 1; terg[0][1] = 1; terg[0][2] = 1; |
terg[1][0] = 1; |
terg[1][1] = 0; |
terg[1][2] = 0; |
terg[2][0] = 0; |
terg[2][1] = 1; |
terg[2][2] = 0; |
terg[3][0] = 0; |
terg[3][1] = 0; |
terg[3][2] = 0; |
} |
orinput() |
{terg[0][0] = 1; |
terg[0][1] = 1; |
terg[0][2] = 1; |
terg[1][0] = 1; |
terg[1][1] = 0; |
terg[1][2] = 1; |
terg[2][0] = 0; |
terg[2][1] = 1; |
terg[2][2] = 1; |
terg[3][0] = 0; |
terg[3][1] = 0; |
terg[3][2] = 0; |
} |
error() /*初始权值选择不当或模型无法实现(如异或模型)时退出*/ |
{clrscr(); |
printf("\n\n\n\tBecause the firse QUARITIES's choise is unavailble, \n"); |
printf("\tIt can't get the right result, forveve!"); |
} |
