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PLearn 0.1
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#include <KernelPCA.h>


Public Member Functions | |
| KernelPCA () | |
| Default constructor. | |
| virtual void | build () |
| Simply calls inherited::build() then build_(). | |
| virtual void | makeDeepCopyFromShallowCopy (CopiesMap &copies) |
| Transforms a shallow copy into a deep copy. | |
| virtual string | classname () const |
| virtual OptionList & | getOptionList () const |
| virtual OptionMap & | getOptionMap () const |
| virtual RemoteMethodMap & | getRemoteMethodMap () const |
| virtual KernelPCA * | deepCopy (CopiesMap &copies) const |
| virtual void | forget () |
| (Re-)initializes the PLearner in its fresh state. | |
Static Public Member Functions | |
| static string | _classname_ () |
| static OptionList & | _getOptionList_ () |
| static RemoteMethodMap & | _getRemoteMethodMap_ () |
| static Object * | _new_instance_for_typemap_ () |
| static bool | _isa_ (const Object *o) |
| static void | _static_initialize_ () |
| static const PPath & | declaringFile () |
Public Attributes | |
| Ker | kpca_kernel |
| bool | kernel_is_distance |
| bool | remove_bias |
| bool | remove_bias_in_evaluate |
Static Public Attributes | |
| static StaticInitializer | _static_initializer_ |
Static Protected Member Functions | |
| static void | declareOptions (OptionList &ol) |
| Declares this class' options. | |
Private Types | |
| typedef KernelProjection | inherited |
Private Member Functions | |
| void | build_ () |
| This does the actual building. | |
Definition at line 52 of file KernelPCA.h.
typedef KernelProjection PLearn::KernelPCA::inherited [private] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 57 of file KernelPCA.h.
| PLearn::KernelPCA::KernelPCA | ( | ) |
Default constructor.
Definition at line 52 of file KernelPCA.cc.
References PLearn::KernelProjection::min_eigenvalue.
: kernel_is_distance(false), remove_bias(false), remove_bias_in_evaluate(false) { // Usually, one will want only positive eigenvalues. min_eigenvalue = 0; }
| string PLearn::KernelPCA::_classname_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| OptionList & PLearn::KernelPCA::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| RemoteMethodMap & PLearn::KernelPCA::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| Object * PLearn::KernelPCA::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| StaticInitializer KernelPCA::_static_initializer_ & PLearn::KernelPCA::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| void PLearn::KernelPCA::build | ( | ) | [virtual] |
Simply calls inherited::build() then build_().
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 103 of file KernelPCA.cc.
References PLearn::KernelProjection::build(), and build_().
Referenced by PLearn::Isomap::build(), PLearn::Isomap::build_(), and PLearn::KPCATangentLearner::train().
{
inherited::build();
build_();
}


| void PLearn::KernelPCA::build_ | ( | ) | [private] |
This does the actual building.
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 112 of file KernelPCA.cc.
References PLearn::KernelProjection::kernel, kernel_is_distance, kpca_kernel, remove_bias, and remove_bias_in_evaluate.
Referenced by build().
{
// Obtain the "real" kernel by additive normalization of 'kpca_kernel'.
// We have to do this iff:
// 1. A 'kpca_kernel' is provided, and
// 2. either:
// 2.a. the 'kernel' option is not set, or
// 2.b. the 'kernel' option is not an AdditiveNormalization acting on 'kpca_kernel'.
// This is to ensure that a loaded 'kernel' won't be overwritten.
if (kpca_kernel &&
(!kernel ||
(dynamic_cast<AdditiveNormalizationKernel*>((Kernel*) kernel))->source_kernel != kpca_kernel)) {
this->kernel = new AdditiveNormalizationKernel
(kpca_kernel, remove_bias, remove_bias_in_evaluate, kernel_is_distance);
}
}

| string PLearn::KernelPCA::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| void PLearn::KernelPCA::declareOptions | ( | OptionList & | ol | ) | [static, protected] |
Declares this class' options.
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 70 of file KernelPCA.cc.
References PLearn::OptionBase::buildoption, PLearn::declareOption(), PLearn::KernelProjection::declareOptions(), PLearn::KernelProjection::ignore_n_first, PLearn::KernelProjection::kernel, kernel_is_distance, kpca_kernel, PLearn::OptionBase::learntoption, PLearn::OptionBase::nosave, PLearn::redeclareOption(), remove_bias, and remove_bias_in_evaluate.
Referenced by PLearn::Isomap::declareOptions().
{
declareOption(ol, "kernel_is_distance", &KernelPCA::kernel_is_distance, OptionBase::buildoption,
"If set to 1, then the kernel will be considered as a squared distance instead of\n"
"a dot product (i.e. the double-centering formula will be applied).");
declareOption(ol, "remove_bias", &KernelPCA::remove_bias, OptionBase::buildoption,
"If set to 1, the (additively) normalized kernel will not take into account terms\n"
"of the form K(x_i,x_i), in order to remove bias induced by those terms.");
declareOption(ol, "remove_bias_in_evaluate", &KernelPCA::remove_bias_in_evaluate, OptionBase::buildoption,
"If set to 1, the (additively) normalized kernel will not take into account terms\n"
"of the form K(x_i,x_i), but only when evaluated on test points.");
// Now call the parent class' declareOptions
inherited::declareOptions(ol);
// Redirect the 'kernel' option toward kpca_kernel.
redeclareOption(ol, "kernel", &KernelPCA::kpca_kernel, OptionBase::buildoption,
"The kernel used to (implicitly) project the data in feature space.");
redeclareOption(ol, "ignore_n_first", &KernelPCA::ignore_n_first, OptionBase::nosave,
"In KernelPCA, no eigenvector is ignored.");
// And declare the normalized kernel so that it can be saved.
declareOption(ol, "normalized_kernel", &KernelProjection::kernel, OptionBase::learntoption,
"The normalized kernel.");
}


| static const PPath& PLearn::KernelPCA::declaringFile | ( | ) | [inline, static] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 111 of file KernelPCA.h.
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| void PLearn::KernelPCA::forget | ( | ) | [virtual] |
(Re-)initializes the PLearner in its fresh state.
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 132 of file KernelPCA.cc.
References PLearn::KernelProjection::forget().
Referenced by PLearn::Isomap::forget().
{
inherited::forget();
}


| OptionList & PLearn::KernelPCA::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| OptionMap & PLearn::KernelPCA::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| RemoteMethodMap & PLearn::KernelPCA::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 65 of file KernelPCA.cc.
| void PLearn::KernelPCA::makeDeepCopyFromShallowCopy | ( | CopiesMap & | copies | ) | [virtual] |
Transforms a shallow copy into a deep copy.
Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 140 of file KernelPCA.cc.
References PLearn::deepCopyField(), kpca_kernel, and PLearn::KernelProjection::makeDeepCopyFromShallowCopy().
Referenced by PLearn::Isomap::makeDeepCopyFromShallowCopy().
{
inherited::makeDeepCopyFromShallowCopy(copies);
deepCopyField(kpca_kernel, copies);
}


Reimplemented from PLearn::KernelProjection.
Reimplemented in PLearn::Isomap.
Definition at line 111 of file KernelPCA.h.
Definition at line 72 of file KernelPCA.h.
Referenced by build_(), PLearn::Isomap::declareOptions(), declareOptions(), and PLearn::Isomap::Isomap().
Definition at line 71 of file KernelPCA.h.
Referenced by PLearn::Isomap::build_(), build_(), PLearn::Isomap::declareOptions(), declareOptions(), makeDeepCopyFromShallowCopy(), and PLearn::KPCATangentLearner::train().
Definition at line 73 of file KernelPCA.h.
Referenced by build_(), and declareOptions().
Definition at line 74 of file KernelPCA.h.
Referenced by build_(), and declareOptions().
1.7.4