PLearn::SigmoidPrimitiveKernel Class Reference

returns log(1+exp(c*x1.x2)) = primitive of sigmoidal kernel More...

#include <SigmoidPrimitiveKernel.h>

Inheritance diagram for PLearn::SigmoidPrimitiveKernel:

[legend]Collaboration diagram for PLearn::SigmoidPrimitiveKernel:

[legend]List of all members.

Public Member Functions
	SigmoidPrimitiveKernel ()
	SigmoidPrimitiveKernel (real the_c)
	PLEARN_DECLARE_OBJECT (SigmoidPrimitiveKernel)
virtual real	evaluate (const Vec &x1, const Vec &x2) const
	returns K(x1,x2)
Static Protected Member Functions
void	declareOptions (OptionList &ol)
	recognized option is "c"
Protected Attributes
real	c
	smoothing constant
Private Types
typedef Kernel	inherited

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Detailed Description

returns log(1+exp(c*x1.x2)) = primitive of sigmoidal kernel

Definition at line 54 of file SigmoidPrimitiveKernel.h.

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Member Typedef Documentation

typedef Kernel PLearn::SigmoidPrimitiveKernel::inherited [private]

Reimplemented from PLearn::Kernel. Definition at line 56 of file SigmoidPrimitiveKernel.h.

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Constructor & Destructor Documentation

PLearn::SigmoidPrimitiveKernel::SigmoidPrimitiveKernel (   )  [inline]

Definition at line 62 of file SigmoidPrimitiveKernel.h. References c.

PLearn::SigmoidPrimitiveKernel::SigmoidPrimitiveKernel (  real  the_c  )  [inline]

Definition at line 64 of file SigmoidPrimitiveKernel.h. References c.

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Member Function Documentation

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

recognized option is "c" Reimplemented from PLearn::Kernel. Definition at line 55 of file SigmoidPrimitiveKernel.cc. References PLearn::declareOption(), and PLearn::OptionList.

real PLearn::SigmoidPrimitiveKernel::evaluate (  const Vec &  x1, const Vec &  x2 )  const [virtual]

returns K(x1,x2) Implements PLearn::Kernel. Definition at line 51 of file SigmoidPrimitiveKernel.cc. References c, PLearn::dot(), PLearn::exp(), PLearn::log(), and PLearn::Vec.

PLearn::SigmoidPrimitiveKernel::PLEARN_DECLARE_OBJECT (  SigmoidPrimitiveKernel   )

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Member Data Documentation

real PLearn::SigmoidPrimitiveKernel::c [protected]

smoothing constant Definition at line 59 of file SigmoidPrimitiveKernel.h. Referenced by evaluate(), and SigmoidPrimitiveKernel().

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

• SigmoidPrimitiveKernel.h
• SigmoidPrimitiveKernel.cc

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