PLearn 0.1
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#include <LLE.h>
Public Member Functions | |
LLE () | |
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 LLE * | 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 | |
bool | classical_induction |
int | knn |
real | reconstruct_coeff |
real | regularizer |
Static Public Attributes | |
static StaticInitializer | _static_initializer_ |
Static Protected Member Functions | |
static void | declareOptions (OptionList &ol) |
Declares this class' options. | |
Protected Attributes | |
PP< LLEKernel > | lle_kernel |
Private Types | |
typedef KernelProjection | inherited |
Private Member Functions | |
void | build_ () |
This does the actual building. |
typedef KernelProjection PLearn::LLE::inherited [private] |
Reimplemented from PLearn::KernelProjection.
PLearn::LLE::LLE | ( | ) |
Default constructor.
Definition at line 52 of file LLE.cc.
References PLearn::KernelProjection::ignore_n_first, lle_kernel, and PLearn::KernelProjection::normalize.
: classical_induction(true), knn(5), reconstruct_coeff(-1), regularizer(1e-6) { lle_kernel = new LLEKernel(); this->normalize = "unit_var"; // In LLE, we normalize. this->ignore_n_first = 1; // In LLE, we ignore the first eigenvector. }
string PLearn::LLE::_classname_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
OptionList & PLearn::LLE::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
RemoteMethodMap & PLearn::LLE::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
Reimplemented from PLearn::KernelProjection.
Object * PLearn::LLE::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
StaticInitializer LLE::_static_initializer_ & PLearn::LLE::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::KernelProjection.
void PLearn::LLE::build | ( | ) | [virtual] |
Simply calls inherited::build() then build_().
Reimplemented from PLearn::KernelProjection.
Definition at line 111 of file LLE.cc.
References PLearn::KernelProjection::build(), and build_().
{ inherited::build(); build_(); }
void PLearn::LLE::build_ | ( | ) | [private] |
This does the actual building.
Reimplemented from PLearn::KernelProjection.
Definition at line 120 of file LLE.cc.
References classical_induction, PLearn::KernelProjection::kernel, knn, lle_kernel, PLearn::KernelProjection::normalize, reconstruct_coeff, regularizer, and PLearn::PLearner::report_progress.
Referenced by build().
{ if (classical_induction) { lle_kernel->reconstruct_coeff = -1; normalize = "unit_eigen"; } else { lle_kernel->reconstruct_coeff = this->reconstruct_coeff; normalize = "unit_var"; } lle_kernel->knn = this->knn; lle_kernel->regularizer = this->regularizer; lle_kernel->report_progress = this->report_progress; lle_kernel->build(); this->kernel = (Kernel*) lle_kernel; }
string PLearn::LLE::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::KernelProjection.
void PLearn::LLE::declareOptions | ( | OptionList & | ol | ) | [static, protected] |
Declares this class' options.
Reimplemented from PLearn::KernelProjection.
Definition at line 71 of file LLE.cc.
References PLearn::OptionBase::buildoption, classical_induction, PLearn::declareOption(), PLearn::KernelProjection::declareOptions(), PLearn::KernelProjection::ignore_n_first, PLearn::KernelProjection::kernel, knn, PLearn::OptionBase::learntoption, lle_kernel, PLearn::KernelProjection::normalize, PLearn::OptionBase::nosave, reconstruct_coeff, PLearn::redeclareOption(), and regularizer.
{ // Build options. declareOption(ol, "knn", &LLE::knn, OptionBase::buildoption, "The number of nearest neighbors considered."); declareOption(ol, "classical_induction", &LLE::classical_induction, OptionBase::buildoption, "If set to 1, then the out-of-sample extension of LLE will be the classical\n" "one, corresponding to an infinite 'reconstruct_coeff' (whose value is ignored)."); declareOption(ol, "reconstruct_coeff", &LLE::reconstruct_coeff, OptionBase::buildoption, "The weight of K' in the weighted sum of K' and K'' (see LLEKernel)."); declareOption(ol, "regularizer", &LLE::regularizer, OptionBase::buildoption, "The regularization factor used to make the linear systems stable."); // Learnt options. declareOption(ol, "lle_kernel", &LLE::lle_kernel, OptionBase::learntoption, "The kernel used in LLE."); // Now call the parent class' declareOptions. inherited::declareOptions(ol); // Hide unused options from KernelProjection. redeclareOption(ol, "kernel", &LLE::kernel, OptionBase::nosave, "Will be set at build time."); redeclareOption(ol, "normalize", &LLE::normalize, OptionBase::nosave, "Will be set at construction and build time."); redeclareOption(ol, "ignore_n_first", &LLE::ignore_n_first, OptionBase::nosave, "Will be set to 1 at construction time."); }
static const PPath& PLearn::LLE::declaringFile | ( | ) | [inline, static] |
Reimplemented from PLearn::KernelProjection.
Reimplemented from PLearn::KernelProjection.
void PLearn::LLE::forget | ( | ) | [virtual] |
(Re-)initializes the PLearner in its fresh state.
Reimplemented from PLearn::KernelProjection.
Definition at line 139 of file LLE.cc.
References PLearn::KernelProjection::forget().
{ inherited::forget(); }
OptionList & PLearn::LLE::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::KernelProjection.
OptionMap & PLearn::LLE::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::KernelProjection.
RemoteMethodMap & PLearn::LLE::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::KernelProjection.
void PLearn::LLE::makeDeepCopyFromShallowCopy | ( | CopiesMap & | copies | ) | [virtual] |
Transforms a shallow copy into a deep copy.
Reimplemented from PLearn::KernelProjection.
Definition at line 147 of file LLE.cc.
References PLearn::KernelProjection::makeDeepCopyFromShallowCopy(), and PLERROR.
{ inherited::makeDeepCopyFromShallowCopy(copies); // ### Call deepCopyField on all "pointer-like" fields // ### that you wish to be deepCopied rather than // ### shallow-copied. // ### ex: // deepCopyField(trainvec, copies); // ### Remove this line when you have fully implemented this method. PLERROR("LLE::makeDeepCopyFromShallowCopy not fully (correctly) implemented yet!"); }
Reimplemented from PLearn::KernelProjection.
Definition at line 74 of file LLE.h.
Referenced by build_(), and declareOptions().
Definition at line 75 of file LLE.h.
Referenced by build_(), and declareOptions().
PP<LLEKernel> PLearn::LLE::lle_kernel [protected] |
Definition at line 66 of file LLE.h.
Referenced by build_(), declareOptions(), and LLE().
Definition at line 76 of file LLE.h.
Referenced by build_(), and declareOptions().
Definition at line 77 of file LLE.h.
Referenced by build_(), and declareOptions().