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| SVR_Q (const svm_problem &prob, const svm_parameter ¶m) |
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void | swap_index (int i, int j) const |
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Qfloat * | get_Q (int i, int len) const |
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double * | get_QD () const |
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| Kernel (int l, svm_node *const *x, const svm_parameter ¶m) |
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virtual Qfloat * | get_Q (int column, int len) const =0 |
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virtual double * | get_QD () const =0 |
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virtual void | swap_index (int i, int j) const |
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virtual Qfloat * | get_Q (int column, int len) const =0 |
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virtual double * | get_QD () const =0 |
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virtual void | swap_index (int i, int j) const =0 |
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Definition at line 1369 of file svm.cpp.
◆ SVR_Q()
Definition at line 1372 of file svm.cpp.
1373 :
Kernel(prob.l, prob.x, param)
1374 {
1375 l = prob.l;
1376 cache =
new Cache(l,(
long int)(param.cache_size*(1<<20)));
1377 QD = new double[2*l];
1378 sign = new schar[2*l];
1379 index = new int[2*l];
1380 for(int k=0;k<l;k++)
1381 {
1382 sign[k] = 1;
1383 sign[k+l] = -1;
1384 index[k] = k;
1385 index[k+l] = k;
1386 QD[k] = (this->*kernel_function)(k,k);
1387 QD[k+l] = QD[k];
1388 }
1389 buffer[0] = new Qfloat[2*l];
1390 buffer[1] = new Qfloat[2*l];
1391 next_buffer = 0;
1392 }
◆ ~SVR_Q()
Definition at line 1425 of file svm.cpp.
1426 {
1427 delete cache;
1428 delete[] sign;
1429 delete[] index;
1430 delete[] buffer[0];
1431 delete[] buffer[1];
1432 delete[] QD;
1433 }
◆ get_Q()
Qfloat * SVR_Q::get_Q |
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int |
i, |
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int |
len |
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) |
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inlinevirtual |
Implements Kernel.
Definition at line 1401 of file svm.cpp.
1402 {
1403 Qfloat *data;
1404 int j, real_i = index[i];
1405 if(cache->get_data(real_i,&data,l) < l)
1406 {
1407 for(j=0;j<l;j++)
1408 data[j] = (Qfloat)(this->*kernel_function)(real_i,j);
1409 }
1410
1411
1412 Qfloat *buf = buffer[next_buffer];
1413 next_buffer = 1 - next_buffer;
1414 schar si = sign[i];
1415 for(j=0;j<len;j++)
1416 buf[j] = (Qfloat) si * (Qfloat) sign[j] * data[index[j]];
1417 return buf;
1418 }
◆ get_QD()
double * SVR_Q::get_QD |
( |
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const |
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inlinevirtual |
Implements Kernel.
Definition at line 1420 of file svm.cpp.
1421 {
1422 return QD;
1423 }
◆ swap_index()
void SVR_Q::swap_index |
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int |
i, |
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int |
j |
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) |
| const |
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inlinevirtual |
Reimplemented from Kernel.
Definition at line 1394 of file svm.cpp.
1395 {
1396 swap(sign[i],sign[j]);
1397 swap(index[i],index[j]);
1398 swap(QD[i],QD[j]);
1399 }
The documentation for this class was generated from the following file:
- /tmp/slackdce/slackrepo.6a0m9U/build_pktools/PKTOOLS-2.6.7.6/src/algorithms/svm.cpp