PLearn::SoftSlopeVariable Class Reference

#include <SoftSlopeVariable.h>

Inheritance diagram for PLearn::SoftSlopeVariable:

[legend]Collaboration diagram for PLearn::SoftSlopeVariable:

[legend]List of all members.

Public Member Functions
	SoftSlopeVariable ()
	Default constructor for persistence.
	SoftSlopeVariable (Variable *x, Variable *smoothness, Variable *left, Variable *right, bool tabulated=true)
	PLEARN_DECLARE_OBJECT (SoftSlopeVariable)
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
bool	tabulated
Private Types
typedef NaryVariable	inherited

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Member Typedef Documentation

typedef NaryVariable PLearn::SoftSlopeVariable::inherited [private]

Reimplemented from PLearn::NaryVariable. Definition at line 60 of file SoftSlopeVariable.h. Referenced by SoftSlopeVariable().

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Constructor & Destructor Documentation

PLearn::SoftSlopeVariable::SoftSlopeVariable (   )  [inline]

Default constructor for persistence. Definition at line 67 of file SoftSlopeVariable.h.

PLearn::SoftSlopeVariable::SoftSlopeVariable (  Variable *  x, Variable *  smoothness, Variable *  left, Variable *  right, bool  tabulated = true )

Definition at line 61 of file SoftSlopeVariable.cc. References inherited, PLearn::left(), PLearn::right(), and x.

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Member Function Documentation

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

Implements PLearn::Variable. Definition at line 125 of file SoftSlopeVariable.cc. References PLearn::left(), PLearn::VarArray::nelems(), PLearn::Variable::nelems(), PLearn::right(), PLearn::sigmoid(), PLearn::soft_slope(), tabulated, PLearn::tabulated_soft_slope(), and x.

void PLearn::SoftSlopeVariable::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::NaryVariable. Definition at line 68 of file SoftSlopeVariable.cc. References PLearn::declareOption(), and PLearn::OptionList.

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

compute output given input Implements PLearn::Variable. Definition at line 95 of file SoftSlopeVariable.cc. References PLearn::left(), PLearn::VarArray::nelems(), PLearn::Variable::nelems(), PLearn::right(), PLearn::soft_slope(), tabulated, PLearn::tabulated_soft_slope(), and x.

PLearn::SoftSlopeVariable::PLEARN_DECLARE_OBJECT (  SoftSlopeVariable   )

void PLearn::SoftSlopeVariable::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 74 of file SoftSlopeVariable.cc. References PLERROR, and PLearn::TVec< Var >::size().

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

compute a piece of new Var graph that represents the symbolic derivative of this Var Reimplemented from PLearn::Variable. Definition at line 164 of file SoftSlopeVariable.cc. References PLERROR.

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Member Data Documentation

bool PLearn::SoftSlopeVariable::tabulated [protected]

Definition at line 63 of file SoftSlopeVariable.h. Referenced by bprop(), and fprop().

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

• SoftSlopeVariable.h
• SoftSlopeVariable.cc

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