PLearn::GeneralizedOneHotVMatrix Class Reference

This VMat is a generalization of OneHotVMatrix where all columns (given by the Vec index) are mapped, instead of just the last one. More...

#include <GeneralizedOneHotVMatrix.h>

Inheritance diagram for PLearn::GeneralizedOneHotVMatrix:

[legend]Collaboration diagram for PLearn::GeneralizedOneHotVMatrix:

[legend]List of all members.


Public Member Functions
	GeneralizedOneHotVMatrix ()
	default constructor (for automatic deserialization)
	GeneralizedOneHotVMatrix (VMat the_distr, Vec the_index, Vec the_nclasses, Vec the_cold_value, Vec the_host_value)
	Warning: VMFields are NOT YET handled by this constructor.
	PLEARN_DECLARE_OBJECT (GeneralizedOneHotVMatrix)
virtual void	build ()
	Should call simply inherited::build(), then this class's build_().
virtual void	reset_dimensions ()
	in case the dimensions of an underlying vmat has changed, recompute it
Protected Member Functions
virtual void	getNewRow (int i, const Vec &samplevec) const
	This is the only method requiring implementation in subclasses.
Static Protected Member Functions
void	declareOptions (OptionList &ol)
	redefine this in subclasses: call declareOption(...) for each option, and then call inherited::declareOptions(options) ( see the declareOption function further down)
Protected Attributes
VMat	distr
Vec	index
Vec	nclasses
Vec	cold_value
Vec	hot_value
Private Types
typedef RowBufferedVMatrix	inherited
Private Member Functions
void	build_ ()
	This does the actual building.

Detailed Description

This VMat is a generalization of OneHotVMatrix where all columns (given by the Vec index) are mapped, instead of just the last one.

Definition at line 56 of file GeneralizedOneHotVMatrix.h.

Member Typedef Documentation

typedef RowBufferedVMatrix PLearn::GeneralizedOneHotVMatrix::inherited [private]

Reimplemented from PLearn::RowBufferedVMatrix.
Definition at line 58 of file GeneralizedOneHotVMatrix.h.
Referenced by GeneralizedOneHotVMatrix().

Constructor & Destructor Documentation

PLearn::GeneralizedOneHotVMatrix::GeneralizedOneHotVMatrix ( )

default constructor (for automatic deserialization)

Definition at line 51 of file GeneralizedOneHotVMatrix.cc.

PLearn::GeneralizedOneHotVMatrix::GeneralizedOneHotVMatrix ( VMat the_distr,

Vec the_index,

Vec the_nclasses,

Vec the_cold_value,

Vec the_host_value

)

Warning: VMFields are NOT YET handled by this constructor.

Definition at line 55 of file GeneralizedOneHotVMatrix.cc.
References cold_value, distr, hot_value, index, inherited, PLearn::TVec< T >::length(), PLearn::VMat::length(), PLearn::max(), PLearn::min(), nclasses, PLERROR, PLearn::sum(), and PLearn::Vec.

Member Function Documentation

void PLearn::GeneralizedOneHotVMatrix::build ( ) [virtual]

Should call simply inherited::build(), then this class's build_().
This method should be callable again at later times, after modifying some option fields to change the "architecture" of the object.
Reimplemented from PLearn::VMatrix.
Definition at line 70 of file GeneralizedOneHotVMatrix.cc.
References build_().

void PLearn::GeneralizedOneHotVMatrix::build_ ( ) [private]

This does the actual building.

Reimplemented from PLearn::VMatrix.
Definition at line 77 of file GeneralizedOneHotVMatrix.cc.
Referenced by build().

void PLearn::GeneralizedOneHotVMatrix::declareOptions ( OptionList & ol ) [static, protected]

redefine this in subclasses: call declareOption(...) for each option, and then call inherited::declareOptions(options) ( see the declareOption function further down)
ex: static void declareOptions(OptionList& ol) { declareOption(ol, "inputsize", &MyObject::inputsize_, OptionBase::buildoption, "the size of the input\n it must be provided"); declareOption(ol, "weights", &MyObject::weights, OptionBase::learntoption, "the learnt model weights"); inherited::declareOptions(ol); }
Reimplemented from PLearn::VMatrix.
Definition at line 82 of file GeneralizedOneHotVMatrix.cc.
References PLearn::declareOption(), and PLearn::OptionList.

void PLearn::GeneralizedOneHotVMatrix::getNewRow ( int i,

const Vec & samplevec

) const [protected, virtual]

This is the only method requiring implementation in subclasses.

Implements PLearn::RowBufferedVMatrix.
Definition at line 92 of file GeneralizedOneHotVMatrix.cc.
References cold_value, distr, PLearn::fill_one_hot(), hot_value, index, PLearn::TVec< T >::length(), PLearn::VMatrix::length(), nclasses, PLERROR, PLearn::TVec< T >::subVec(), PLearn::vec_find(), PLearn::VMat::width(), and PLearn::VMatrix::width().

PLearn::GeneralizedOneHotVMatrix::PLEARN_DECLARE_OBJECT ( GeneralizedOneHotVMatrix )

virtual void PLearn::GeneralizedOneHotVMatrix::reset_dimensions ( ) [inline, virtual]

in case the dimensions of an underlying vmat has changed, recompute it

Reimplemented from PLearn::VMatrix.
Definition at line 89 of file GeneralizedOneHotVMatrix.h.
References distr, PLearn::VMat::length(), and PLearn::VMat::width().