FST::Criterion_Subset_Size< RETURNTYPE, SUBSET > Class Template Reference

Returns negative subset size - rates smaller subsets higher. More...

#include <criterion_subsetsize.hpp>

Inheritance diagram for FST::Criterion_Subset_Size< RETURNTYPE, SUBSET >:

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Collaboration diagram for FST::Criterion_Subset_Size< RETURNTYPE, SUBSET >:

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List of all members.

Public Types
typedef boost::shared_ptr< SUBSET >	PSubset
Public Member Functions
virtual bool	evaluate (RETURNTYPE &result, const PSubset sub)
Criterion_Subset_Size *	clone () const
Criterion_Subset_Size *	sharing_clone () const
Criterion_Subset_Size *	stateless_clone () const
virtual std::ostream &	print (std::ostream &os) const
Private Member Functions
	Criterion_Subset_Size (const Criterion_Subset_Size &css)

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Detailed Description

template<class RETURNTYPE, class SUBSET>
class FST::Criterion_Subset_Size< RETURNTYPE, SUBSET >

Returns negative subset size - rates smaller subsets higher.

This trivial criterion is intended as secondary criterion only to be used in conjunction with Result_Tracker_Regularizer, implementing feature selection regularization (improvement of feature selection generalization ability and result robustness) as described in paper Somol, Grim, Pudil: The Problem of Fragile Feature Subset Preference in Feature Selection Methods and A Proposal of Algorithmic Workaround. In Proc. ICPR 2010. IEEE Computer Society, 2010.

Examples:

demo51.cpp, and demo52t.cpp.

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Member Function Documentation

template<class RETURNTYPE , class SUBSET >

Criterion_Subset_Size< RETURNTYPE, SUBSET > * FST::Criterion_Subset_Size< RETURNTYPE, SUBSET >::clone

(

)

const [inline, virtual]

create 1:1 independent clone of the current object

Implements FST::Clonable.

template<class RETURNTYPE, class SUBSET>

Criterion_Subset_Size* FST::Criterion_Subset_Size< RETURNTYPE, SUBSET >::sharing_clone

(

)

const [inline, virtual]

create equivalent clone of the current object, parmitting read-only access to structures in the source object (allows referencing instead of copying of large memory structures). may be faster and save space but requires more caution with respect to concurrency Use example: Data_Accessor memory data representation cloning

Implements FST::Clonable.

template<class RETURNTYPE, class SUBSET>

Criterion_Subset_Size* FST::Criterion_Subset_Size< RETURNTYPE, SUBSET >::stateless_clone

(

)

const [inline, virtual]

create clone of the current object, ignoring internal temporary structures to save speed. Does not replicate exact object state. The clone must be used carefully in a way that ensures internal structure re-initialization Use example: Data_Splitter cloning or Classifier_SVM cloning due to inability to clone external structures defined in LibSVM

Implements FST::Clonable.

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

• criterion_subsetsize.hpp