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  • 大小: 775KB
    文件類型: .rar
    金幣: 2
    下載: 0 次
    發布日期: 2021-06-01
  • 語言: Java
  • 標簽: 代碼??

資源簡介

Java、python、matlab三種語言實現svm算法,可直接運行查看結果。

資源截圖

代碼片段和文件信息

#include?
#include?
#include?
#include?
#include?
#include?“svm.h“

int?print_null(const?char?*s...)?{return?0;}

static?int?(*info)(const?char?*fmt...)?=?&printf;

struct?svm_node?*x;
int?max_nr_attr?=?64;

struct?svm_model*?model;
int?predict_probability=0;

static?char?*line?=?NULL;
static?int?max_line_len;

static?char*?readline(FILE?*input)
{
int?len;

if(fgets(linemax_line_leninput)?==?NULL)
return?NULL;

while(strrchr(line‘\n‘)?==?NULL)
{
max_line_len?*=?2;
line?=?(char?*)?realloc(linemax_line_len);
len?=?(int)?strlen(line);
if(fgets(line+lenmax_line_len-leninput)?==?NULL)
break;
}
return?line;
}

void?exit_input_error(int?line_num)
{
fprintf(stderr“Wrong?input?format?at?line?%d\n“?line_num);
exit(1);
}

void?predict(FILE?*input?FILE?*output)
{
int?correct?=?0;
int?total?=?0;
double?error?=?0;
double?sump?=?0?sumt?=?0?sumpp?=?0?sumtt?=?0?sumpt?=?0;

int?svm_type=svm_get_svm_type(model);
int?nr_class=svm_get_nr_class(model);
double?*prob_estimates=NULL;
int?j;

if(predict_probability)
{
if?(svm_type==NU_SVR?||?svm_type==EPSILON_SVR)
info(“Prob.?model?for?test?data:?target?value?=?predicted?value?+?z\nz:?Laplace?distribution?e^(-|z|/sigma)/(2sigma)sigma=%g\n“svm_get_svr_probability(model));
else
{
int?*labels=(int?*)?malloc(nr_class*sizeof(int));
svm_get_labels(modellabels);
prob_estimates?=?(double?*)?malloc(nr_class*sizeof(double));
fprintf(output“labels“);
for(j=0;j fprintf(output“?%d“labels[j]);
fprintf(output“\n“);
free(labels);
}
}

max_line_len?=?1024;
line?=?(char?*)malloc(max_line_len*sizeof(char));
while(readline(input)?!=?NULL)
{
int?i?=?0;
double?target_label?predict_label;
char?*idx?*val?*label?*endptr;
int?inst_max_index?=?-1;?//?strtol?gives?0?if?wrong?format?and?precomputed?kernel?has??start?from?0

label?=?strtok(line“?\t\n“);
if(label?==?NULL)?//?empty?line
exit_input_error(total+1);

target_label?=?strtod(label&endptr);
if(endptr?==?label?||?*endptr?!=?‘\0‘)
exit_input_error(total+1);

while(1)
{
if(i>=max_nr_attr-1) //?need?one?more?for?index?=?-1
{
max_nr_attr?*=?2;
x?=?(struct?svm_node?*)?realloc(xmax_nr_attr*sizeof(struct?svm_node));
}

idx?=?strtok(NULL“:“);
val?=?strtok(NULL“?\t“);

if(val?==?NULL)
break;
errno?=?0;
x[i].index?=?(int)?strtol(idx&endptr10);
if(endptr?==?idx?||?errno?!=?0?||?*endptr?!=?‘\0‘?||?x[i].index?<=?inst_max_index)
exit_input_error(total+1);
else
inst_max_index?=?x[i].index;

errno?=?0;
x[i].value?=?strtod(val&endptr);
if(endptr?==?val?||?errno?!=?0?||?(*endptr?!=?‘\0‘?&&?!isspace(*endptr)))
exit_input_error(total+1);

++i;
}
x[i].index?=?-1;

if?(predict_probability?&&?(svm_type==C_SVC?||?svm_type==NU_SVC))
{
predict_label?=?svm_predict_probability(modelxprob_estimates);
fprintf(output“%g“predict_label);
for

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1497??2016-12-22?02:58??libsvm-3.22\COPYRIGHT

?????文件??????83089??2016-12-22?02:58??libsvm-3.22\FAQ.html

?????文件??????27670??2016-12-22?02:58??libsvm-3.22\heart_scale

?????文件??????64242??2016-12-22?02:59??libsvm-3.22\java\libsvm\svm.java

?????文件??????63439??2016-12-22?02:58??libsvm-3.22\java\libsvm\svm.m4

?????文件????????868??2016-12-22?02:58??libsvm-3.22\java\libsvm\svm_model.java

?????文件????????115??2016-12-22?02:58??libsvm-3.22\java\libsvm\svm_node.java

?????文件???????1288??2016-12-22?02:58??libsvm-3.22\java\libsvm\svm_parameter.java

?????文件?????????87??2016-12-22?02:58??libsvm-3.22\java\libsvm\svm_print_interface.java

?????文件????????136??2016-12-22?02:58??libsvm-3.22\java\libsvm\svm_problem.java

?????文件??????55185??2016-12-22?02:59??libsvm-3.22\java\libsvm.jar

?????文件????????659??2016-12-22?02:58??libsvm-3.22\java\Makefile

?????文件???????4950??2016-12-22?02:58??libsvm-3.22\java\svm_predict.java

?????文件???????8944??2016-12-22?02:58??libsvm-3.22\java\svm_scale.java

?????文件??????12269??2016-12-22?02:58??libsvm-3.22\java\svm_toy.java

?????文件???????8355??2016-12-22?02:58??libsvm-3.22\java\svm_train.java

?????文件?????????81??2016-12-22?02:58??libsvm-3.22\java\test_applet.html

?????文件????????732??2016-12-22?02:58??libsvm-3.22\Makefile

?????文件???????1136??2016-12-22?02:58??libsvm-3.22\Makefile.win

?????文件???????4063??2016-12-22?02:58??libsvm-3.22\matlab\libsvmread.c

?????文件???????2341??2016-12-22?02:58??libsvm-3.22\matlab\libsvmwrite.c

?????文件????????888??2016-12-22?02:58??libsvm-3.22\matlab\make.m

?????文件???????1240??2016-12-22?02:58??libsvm-3.22\matlab\Makefile

?????文件???????9826??2016-12-22?02:58??libsvm-3.22\matlab\README

?????文件???????9820??2016-12-22?02:58??libsvm-3.22\matlab\svmpredict.c

?????文件??????11818??2016-12-22?02:58??libsvm-3.22\matlab\svmtrain.c

?????文件???????8205??2016-12-22?02:58??libsvm-3.22\matlab\svm_model_matlab.c

?????文件????????201??2016-12-22?02:58??libsvm-3.22\matlab\svm_model_matlab.h

?????文件?????????32??2016-12-22?02:58??libsvm-3.22\python\Makefile

?????文件??????11908??2016-12-22?02:58??libsvm-3.22\python\README

............此處省略47個文件信息

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