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  • 大小: 6KB
    文件類型: .cpp
    金幣: 1
    下載: 0 次
    發布日期: 2021-06-01
  • 語言: C/C++
  • 標簽: SVM??PSO??

資源簡介

SVM PSO 通過粒群算法擇優選擇支持向量機的敏感參數

資源截圖

代碼片段和文件信息

#include?
#include?
#include?
#include?
#include?
#include?
#include?

#define?ulong?unsigned?long? //?For?KISS?pseudo?random?numbers?generator
#define?RAND_MAX_KISS?4294967295ul?//?idem
//?You?don‘t?need?KISS?if?you?have?a?good?rand()?function


double?x[100][2]?v[100][2]?fitness_lbest[100]?X_lbest[100][2]?X_gbest[2]?fitness_X[100];
double?fitness_gbest?c1?c2r1r2w;
double?fitness_gbest_old?gamma;

double?f_rand();
ulong rand_kiss();
void seed_rand_kiss(ulong?seed);
double alea(double?adouble?b);
double phi?s?rmax; //?Control?exploration/exploitation

void?main()
{
FILE???*chkdsk;

int?n?nitit?i?jmax_fitness_indexrt;
double?c_min?c_max?g_min?g_maxmax_fitnessvl?=?5;

char?pr[]?=?“svmtrain?“;
//char?fin[]?=?“?heart_scale“;

//char?fin[]?=?“?train1.scale“;
//char?fin[]?=?“?train2.scale“;
//char?fin[]?=?“?train3.scale“;
char?fin[]?=?“?sptest.scale“;
//char?fin[]?=?“?spect_train.txt“;
c_min?=?1?/?pow(25);?c_max?=?pow(28);
g_min?=?1?/?pow(215);?g_max?=?pow(23);
c1?=?1.5;?c2?=?1.5;w=0.5;gamma?=?0.1;
//c1?=?2;?c2?=?2;w=0.8;gamma?=?0.1;
srand(?(unsigned)time(?NULL?)?);
//seed_rand_kiss(1);?//?Initialize?KISS

fflush(stdin);
cout<<“Enter?the?number?of?particles?:?“;
cin>>n;
cout<<“Enter?the?number?of?iteration?is?:?“;
cin>>it;
cout<<“Enter?the?number?of?exactly?is?is:?“;
cin>>gamma;
//?Initialize?the?particle?positions?and?their?velocities
for?(i=0;i {
//r1?=?alea(c_minc_max);
//r2?=?f_rand();
//x[i][0]?=?alea(c_minc_max);
//x[i][1]?=?alea(g_ming_max);
r1?=?f_rand();
r2?=?f_rand();
x[i][0]?=?c_min?+?(c_max?-?c_min)?*?r1;
x[i][1]?=?g_min?+?(g_max?-?g_min)?*?r2;
v[i][0]?=?0;?
v[i][1]?=?0;


}
int?d1d2pq;
d1?=?0; d2?=?1;

s?=?sqrt(pow(x[d1][0]?-?x[d2][0]2)?+?pow(x[d1][1]?-?x[d2][1]2));

for?(p=0;?p {
for?(q=p+1;q {
if?(sqrt(pow(x[p][0]?-?x[q][0]2)?+?pow(x[p][1]?-?x[q][1]2))?>?s)
s?=?sqrt(pow(x[p][0]?-?x[q][0]2)?+?pow(x[p][1]?-?x[q][1]2));
}
}


//?Initialize?the?global?and?local?fitness?to?the?worst?possible
fitness_gbest?=?0;
for?(i?=?0;?i? {
fitness_lbest[i]?=?0;
}

//?Loop?until?convergence?in?this?example?a?finite?number?of?iterations?chosen
nit?=?0;
do//for?(p?=?0;?p? {
//fitness_gbest_old?=?fitness_gbest;
//?evaluate?the?fitness?of?each?particle
nit?+=1;
for?(i?=?0;?i? {
char???psBuffer[128];
char?cmd[200];
int?k;
double?cx;
if?(x[i][0]?>=?c_min?&&?x[i][0]?<=?c_max?&&?x[i][1]?>=?g_min?&&?x[i][1]?<=?g_max)
{
k?=?sprintf(cmd?“%s“?pr);
k?+=?sprintf(cmd?+?k?“?-c?%f“?x[i][0]);
k?+=?sprintf(cmd?+?k?“?-g?%f“?x[i][1]);
k?+=?sprintf(cmd?+?k?“?-v?%f“?vl);
k?+=?sprintf(cmd?+?k?“%s“?fin);
???
if(?(chkdsk?=?_popen(cmd?“rt“?))?==?NULL?)
{// exit(?1?);

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