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  • 大小: 811KB
    文件類型: .rar
    金幣: 2
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    發布日期: 2021-05-14
  • 語言: 其他
  • 標簽: SVM工具??

資源簡介

這個是faruto寫的一個基于libSVM的加強版工具箱,要是使用他寫的一個GUI-SVM工具包,必須先安裝這個

資源截圖

代碼片段和文件信息

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

#include?“mex.h“

#if?MX_API_VER?typedef?int?mwIndex;
#endif?
#define?max(xy)?(((x)>(y))?(x):(y))
#define?min(xy)?(((x)<(y))?(x):(y))

void?exit_with_help()
{
mexPrintf(
“Usage:?[label_vector?instance_matrix]?=?libsvmread(‘filename‘);\n“
);
}

static?void?fake_answer(mxArray?*plhs[])
{
plhs[0]?=?mxCreateDoubleMatrix(0?0?mxREAL);
plhs[1]?=?mxCreateDoubleMatrix(0?0?mxREAL);
}

static?char?*line;
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(line?max_line_len);
len?=?(int)?strlen(line);
if(fgets(line+lenmax_line_len-leninput)?==?NULL)
break;
}
return?line;
}

//?read?in?a?problem?(in?libsvm?format)
void?read_problem(const?char?*filename?mxArray?*plhs[])
{
int?max_index?min_index?inst_max_index?i;
long?elements?k;
FILE?*fp?=?fopen(filename“r“);
int?l?=?0;
char?*endptr;
mwIndex?*ir?*jc;
double?*labels?*samples;

if(fp?==?NULL)
{
mexPrintf(“can‘t?open?input?file?%s\n“filename);
fake_answer(plhs);
return;
}

max_line_len?=?1024;
line?=?(char?*)?malloc(max_line_len*sizeof(char));

max_index?=?0;
min_index?=?1;?//?our?index?starts?from?1
elements?=?0;
while(readline(fp)?!=?NULL)
{
char?*idx?*val;
//?features
int?index?=?0;

inst_max_index?=?-1;?//?strtol?gives?0?if?wrong?format?and?precomputed?kernel?has??start?from?0
strtok(line“?\t“);?//?label
while?(1)
{
idx?=?strtok(NULL“:“);?//?index:value
val?=?strtok(NULL“?\t“);
if(val?==?NULL)
break;

errno?=?0;
index?=?(int)?strtol(idx&endptr10);
if(endptr?==?idx?||?errno?!=?0?||?*endptr?!=?‘\0‘?||?index?<=?inst_max_index)
{
mexPrintf(“Wrong?input?format?at?line?%d\n“l+1);
fake_answer(plhs);
return;
}
else
inst_max_index?=?index;

min_index?=?min(min_index?index);
elements++;
}
max_index?=?max(max_index?inst_max_index);
l++;
}
rewind(fp);

//?y
plhs[0]?=?mxCreateDoubleMatrix(l?1?mxREAL);
//?x^T
if?(min_index?<=?0)
plhs[1]?=?mxCreateSparse(max_index-min_index+1?l?elements?mxREAL);
else
plhs[1]?=?mxCreateSparse(max_index?l?elements?mxREAL);

labels?=?mxGetPr(plhs[0]);
samples?=?mxGetPr(plhs[1]);
ir?=?mxGetIr(plhs[1]);
jc?=?mxGetJc(plhs[1]);

k=0;
for(i=0;i {
char?*idx?*val?*label;
jc[i]?=?k;

readline(fp);

label?=?strtok(line“?\t“);
labels[i]?=?strtod(label&endptr);
if(endptr?==?label)
{
mexPrintf(“Wrong?input?format?at?line?%d\n“i+1);
fake_answer(plhs);
return;
}

//?features
while(1)
{
idx?=?strtok(NULL“:“);
val?=?strtok(NULL“?\t“);
if(val?==?NULL)
break;

ir[k]?=?(mwIndex)?(strtol(idx&endptr10)?-?min_index);?//?precomputed?kernel?has??start?from?0

errno?=?0;
samples[k]?=?strtod(val&end

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

?????文件?????222041??2010-01-17?16:23??TutorialForFarutoUltimate3.0.pdf

?????文件???????3823??2009-04-15?13:04??libsvmread.c

?????文件???????2123??2009-05-01?13:34??libsvmwrite.c

?????文件???????7684??2009-04-15?14:36??svm_model_matlab.c

?????文件???????9050??2009-04-15?14:36??svmpredict.c

?????文件??????11377??2009-09-06?18:47??svmtrain.c

?????文件???????2968??2009-04-07?23:28??svm.h

?????文件????????201??2007-11-23?21:06??svm_model_matlab.h

?????文件??????62422??2009-04-06?13:39??svm.cpp

?????文件????????229??2009-04-15?10:37??make.m

?????文件??????28904??2005-03-22?20:37??heart_scale.mat

?????文件??????20480??2010-01-16?01:16??libsvmread.mexw32

?????文件??????20480??2010-01-16?01:16??libsvmwrite.mexw32

?????文件??????24576??2010-01-16?01:16??svmpredict.mexw32

?????文件??????45056??2010-01-16?01:16??svmtrain.mexw32

?????文件??????65048??2010-01-16?01:15??svm.obj

?????文件???????6294??2010-01-16?01:16??svm_model_matlab.obj

?????文件???????2600??2009-08-18?22:27??libsvm?參數說明.txt

?????文件???????1602??2009-11-21?00:11??readme[by?faruto].txt

?????文件???????1497??2009-02-17?18:07??COPYRIGHT

?????文件???????1462??2009-04-15?14:36??Makefile

?????文件???????9181??2009-04-24?22:35??README

?????文件???????2835??2010-01-24?15:14??implement[by?faruto]\a_template_flow_usingSVM_class.m

?????文件???????2159??2010-01-17?09:36??implement[by?faruto]\a_template_flow_usingSVM_regress.m

?????文件????????871??2010-01-17?14:51??implement[by?faruto]\fasticaForSVM.m

?????文件???????3778??2010-01-21?21:40??implement[by?faruto]\gaSVMcgForClass.m

?????文件???????3510??2010-01-21?21:42??implement[by?faruto]\gaSVMcgForRegress.m

?????文件???????3788??2010-01-17?10:20??implement[by?faruto]\gaSVMcgpForRegress.m

?????文件???????3217??1998-04-22?10:44??implement[by?faruto]\myprivate\gatbx[Sheffield]\bs2rv.m

?????文件???????1835??1998-04-22?10:44??implement[by?faruto]\myprivate\gatbx[Sheffield]\contents.m

............此處省略58個文件信息

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