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  • 大小: 736KB
    文件類型: .zip
    金幣: 2
    下載: 0 次
    發布日期: 2021-06-15
  • 語言: Java
  • 標簽: svm??java??

資源簡介

詳細的代碼解釋,一看就懂,希望有幫助

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代碼片段和文件信息

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

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)
printf(“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(j=0;j fprintf(output“?%g“prob_estimates[j]);
fprintf(output“\n“);
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-03-17?14:52??NLPLibSVM\
?????文件?????????557??2017-03-15?16:14??NLPLibSVM\.classpath
?????文件?????????385??2012-10-05?10:47??NLPLibSVM\.project
?????目錄???????????0??2017-03-17?14:52??NLPLibSVM\.settings\
?????文件?????????114??2017-03-15?16:08??NLPLibSVM\.settings\com.genuitec.eclipse.core.prefs
?????文件?????????629??2012-10-05?10:47??NLPLibSVM\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2017-03-17?14:52??NLPLibSVM\bin\
?????文件????????1206??2017-03-17?14:51??NLPLibSVM\bin\LibSVMTest.class
?????文件????????5640??2017-03-17?14:40??NLPLibSVM\bin\svm_predict.class
?????文件????????8087??2017-03-15?16:14??NLPLibSVM\bin\svm_scale.class
?????文件?????????492??2017-03-17?14:14??NLPLibSVM\bin\svm_train$1.class
?????文件????????9156??2017-03-17?14:14??NLPLibSVM\bin\svm_train.class
?????目錄???????????0??2017-03-17?14:52??NLPLibSVM\libsvm-3.12\
?????目錄???????????0??2017-03-17?14:52??NLPLibSVM\libsvm-3.12\libsvm-3.12\
?????文件????????1497??2012-01-31?13:51??NLPLibSVM\libsvm-3.12\libsvm-3.12\COPYRIGHT
?????文件???????72186??2012-04-01?06:17??NLPLibSVM\libsvm-3.12\libsvm-3.12\FAQ.html
?????文件???????27670??2003-07-12?12:07??NLPLibSVM\libsvm-3.12\libsvm-3.12\heart_scale
?????目錄???????????0??2017-03-17?14:52??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\
?????目錄???????????0??2017-03-17?14:52??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm\
?????文件???????50329??2012-04-01?06:18??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm.jar
?????文件???????62406??2012-04-01?06:18??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm\svm.java
?????文件???????61755??2012-02-03?13:56??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm\svm.m4
?????文件?????????734??2010-09-12?20:11??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm\svm_model.java
?????文件?????????115??2003-10-11?20:30??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm\svm_node.java
?????文件????????1288??2006-03-03?23:44??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm\svm_parameter.java
?????文件??????????87??2009-02-18?11:20??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm\svm_print_interface.java
?????文件?????????136??2003-10-11?20:30??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\libsvm\svm_problem.java
?????文件?????????624??2009-02-18?08:41??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\Makefile
?????文件????????4267??2009-03-18?04:20??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\svm_predict.java
?????文件????????8944??2011-05-28?22:19??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\svm_scale.java
?????文件???????12269??2012-02-03?13:29??NLPLibSVM\libsvm-3.12\libsvm-3.12\java\svm_toy.java
............此處省略70個文件信息

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