PLearn::CutBelowThresholdVariable Class Reference

#include <CutBelowThresholdVariable.h>

Inheritance diagram for PLearn::CutBelowThresholdVariable:

[legend]Collaboration diagram for PLearn::CutBelowThresholdVariable:

[legend]List of all members.

Public Member Functions
	CutBelowThresholdVariable ()
	Default constructor for persistence.
	CutBelowThresholdVariable (Variable *input, real the_threshold)
	PLEARN_DECLARE_OBJECT (CutBelowThresholdVariable)
virtual void	recomputeSize (int &l, int &w) const
	Recomputes the length l and width w that this variable should have, according to its parent variables.
virtual void	fprop ()
	compute output given input
virtual void	bprop ()
virtual void	symbolicBprop ()
	compute a piece of new Var graph that represents the symbolic derivative of this Var
Static Public 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
real	threshold
Private Types
typedef UnaryVariable	inherited

---

Member Typedef Documentation

typedef UnaryVariable PLearn::CutBelowThresholdVariable::inherited [private]

Reimplemented from PLearn::UnaryVariable. Definition at line 54 of file CutBelowThresholdVariable.h. Referenced by CutBelowThresholdVariable().

---

Constructor & Destructor Documentation

PLearn::CutBelowThresholdVariable::CutBelowThresholdVariable (   )  [inline]

Default constructor for persistence. Definition at line 61 of file CutBelowThresholdVariable.h. References threshold.

PLearn::CutBelowThresholdVariable::CutBelowThresholdVariable (  Variable *  input, real  the_threshold )

Definition at line 57 of file CutBelowThresholdVariable.cc. References inherited.

---

Member Function Documentation

void PLearn::CutBelowThresholdVariable::bprop (   )  [virtual]

Implements PLearn::Variable. Definition at line 88 of file CutBelowThresholdVariable.cc. References PLearn::Variable::nelems(), and threshold.

void PLearn::CutBelowThresholdVariable::declareOptions (  OptionList &  ol  )  [static]

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::UnaryVariable. Definition at line 72 of file CutBelowThresholdVariable.cc. References PLearn::declareOption(), and PLearn::OptionList.

void PLearn::CutBelowThresholdVariable::fprop (   )  [virtual]

compute output given input Implements PLearn::Variable. Definition at line 78 of file CutBelowThresholdVariable.cc. References PLearn::Variable::nelems(), threshold, and val.

PLearn::CutBelowThresholdVariable::PLEARN_DECLARE_OBJECT (  CutBelowThresholdVariable   )

void PLearn::CutBelowThresholdVariable::recomputeSize (  int &  l, int &  w )  const [virtual]

Recomputes the length l and width w that this variable should have, according to its parent variables. This is used for ex. by sizeprop() The default version stupidly returns the current dimensions, so make sure to overload it in subclasses if this is not appropriate. Reimplemented from PLearn::Variable. Definition at line 62 of file CutBelowThresholdVariable.cc. References PLearn::Var::length(), and PLearn::Var::width().

void PLearn::CutBelowThresholdVariable::symbolicBprop (   )  [virtual]

compute a piece of new Var graph that represents the symbolic derivative of this Var Reimplemented from PLearn::Variable. Definition at line 96 of file CutBelowThresholdVariable.cc. References threshold.

---

Member Data Documentation

real PLearn::CutBelowThresholdVariable::threshold [protected]

Definition at line 57 of file CutBelowThresholdVariable.h. Referenced by bprop(), CutBelowThresholdVariable(), fprop(), and symbolicBprop().

---

The documentation for this class was generated from the following files:

• CutBelowThresholdVariable.h
• CutBelowThresholdVariable.cc

---