PLearn::WeightedCostFunction Class Reference

A costfunction that allows to reweight another costfunction (weight being last element of target) Returns target.lastElement() * costfunc(output,target.subVec(0,target.length()-1));. More...

#include <WeightedCostFunction.h>

Inheritance diagram for PLearn::WeightedCostFunction:

[legend]Collaboration diagram for PLearn::WeightedCostFunction:

[legend]List of all members.

Public Member Functions
	WeightedCostFunction ()
	WeightedCostFunction (Ker the_costfunc)
	PLEARN_DECLARE_OBJECT (WeightedCostFunction)
virtual string	info () const
	returns a bit more informative string about object (default returns classname())
virtual void	makeDeepCopyFromShallowCopy (map< const void *, void * > &copies)
virtual real	evaluate (const Vec &output, const Vec &target) const
	returns K(x1,x2)
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
Ker	costfunc
Private Types
typedef Kernel	inherited

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Detailed Description

A costfunction that allows to reweight another costfunction (weight being last element of target) Returns target.lastElement() * costfunc(output,target.subVec(0,target.length()-1));.

Definition at line 55 of file WeightedCostFunction.h.

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Member Typedef Documentation

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

Reimplemented from PLearn::Kernel. Definition at line 57 of file WeightedCostFunction.h.

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Constructor & Destructor Documentation

PLearn::WeightedCostFunction::WeightedCostFunction (   )  [inline]

Definition at line 63 of file WeightedCostFunction.h. References costfunc.

PLearn::WeightedCostFunction::WeightedCostFunction (  Ker  the_costfunc  )  [inline]

Definition at line 64 of file WeightedCostFunction.h. References costfunc.

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Member Function Documentation

void PLearn::WeightedCostFunction::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::Kernel. Definition at line 61 of file WeightedCostFunction.cc. References PLearn::declareOption(), and PLearn::OptionList.

real PLearn::WeightedCostFunction::evaluate (  const Vec &  output, const Vec &  target )  const [virtual]

returns K(x1,x2) Implements PLearn::Kernel. Definition at line 57 of file WeightedCostFunction.cc. References costfunc, PLearn::TVec< T >::length(), PLearn::TVec< T >::subVec(), and PLearn::Vec.

virtual string PLearn::WeightedCostFunction::info (   )  const [inline, virtual]

returns a bit more informative string about object (default returns classname()) Reimplemented from PLearn::Object. Definition at line 69 of file WeightedCostFunction.h. References costfunc.

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

Definition at line 51 of file WeightedCostFunction.cc. References costfunc, and PLearn::deepCopyField().

PLearn::WeightedCostFunction::PLEARN_DECLARE_OBJECT (  WeightedCostFunction   )

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Member Data Documentation

Ker PLearn::WeightedCostFunction::costfunc [protected]

Definition at line 60 of file WeightedCostFunction.h. Referenced by evaluate(), info(), makeDeepCopyFromShallowCopy(), and WeightedCostFunction().

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

• WeightedCostFunction.h
• WeightedCostFunction.cc

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