PLearn::LogSumVariable Class Reference

#include <LogSumVariable.h>

Inheritance diagram for PLearn::LogSumVariable:

[legend]Collaboration diagram for PLearn::LogSumVariable:

[legend]List of all members.

Public Member Functions
	LogSumVariable (Variable *input)
	LogSumVariable *.
	PLEARN_DECLARE_OBJECT (LogSumVariable)
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	makeDeepCopyFromShallowCopy (map< const void *, void * > &copies)
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
Protected Types
typedef UnaryVariable	inherited
Protected Member Functions
	LogSumVariable ()
	Default constructor for persistence.
Protected Attributes
Vec	input_softmax

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Member Typedef Documentation

typedef UnaryVariable PLearn::LogSumVariable::inherited [protected]

Reimplemented from PLearn::UnaryVariable. Definition at line 55 of file LogSumVariable.h.

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Constructor & Destructor Documentation

PLearn::LogSumVariable::LogSumVariable (   )  [inline, protected]

Default constructor for persistence. Definition at line 57 of file LogSumVariable.h.

PLearn::LogSumVariable::LogSumVariable (  Variable *  input  )

LogSumVariable *. Definition at line 55 of file LogSumVariable.cc.

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Member Function Documentation

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

Implements PLearn::Variable. Definition at line 84 of file LogSumVariable.cc. References input_softmax, PLearn::multiplyAcc(), and PLearn::softmax().

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

compute output given input Implements PLearn::Variable. Definition at line 78 of file LogSumVariable.cc. References PLearn::logadd().

void PLearn::LogSumVariable::makeDeepCopyFromShallowCopy (  map< const void *, void * > &  copies  )  [virtual]

Reimplemented from PLearn::UnaryVariable. Definition at line 71 of file LogSumVariable.cc. References PLearn::deepCopyField(), and input_softmax.

PLearn::LogSumVariable::PLEARN_DECLARE_OBJECT (  LogSumVariable   )

void PLearn::LogSumVariable::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 61 of file LogSumVariable.cc.

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

compute a piece of new Var graph that represents the symbolic derivative of this Var Reimplemented from PLearn::Variable. Definition at line 91 of file LogSumVariable.cc. References PLearn::softmax().

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Member Data Documentation

Vec PLearn::LogSumVariable::input_softmax [protected]

Definition at line 60 of file LogSumVariable.h. Referenced by bprop(), and makeDeepCopyFromShallowCopy().

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

• LogSumVariable.h
• LogSumVariable.cc

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