Base for classes to build clsfy_classifier_base objects. More...

#include <clsfy_direct_boost_builder.h>

Inheritance diagram for clsfy_direct_boost_builder:

Public Member Functions
	clsfy_direct_boost_builder ()
virtual	~clsfy_direct_boost_builder ()
virtual clsfy_classifier_base *	new_classifier () const
	Create empty model.
void	set_batch_size (int bs)
	set batch size.
void	set_save_data_to_disk (bool x)
	set save data to disk bool.
void	set_max_n_clfrs (int max_n_clfrs)
	set max_n_clfrs.
void	set_weak_builder (clsfy_builder_1d &weak_builder)
	set weak builder ( a pointer is retained ).
void	set_calc_all_thresholds (bool x)
	set stuff.
void	set_prop (double prop)
virtual double	build (clsfy_classifier_base &model, mbl_data_wrapper< vnl_vector< double > > &inputs, unsigned nClasses, const vcl_vector< unsigned > &outputs) const
	Build model from data.
virtual vcl_string	is_a () const
	Name of the class.
virtual bool	is_class (vcl_string const &s) const
	Name of the class.
virtual clsfy_builder_base *	clone () const
	Create a copy on the heap and return base class pointer.
virtual void	print_summary (vcl_ostream &os) const
	Print class to os.
virtual void	b_write (vsl_b_ostream &bfs) const
	Save class to binary file stream.
virtual void	b_read (vsl_b_istream &bfs)
	Load class from binary file stream.
virtual void	config (vcl_istream &as)
	Initialise the parameters from a text stream.
Static Public Member Functions
static vcl_auto_ptr < clsfy_builder_base >	new_builder (vcl_istream &as)
	Load description from a text stream.
Private Member Functions
double	calc_threshold (clsfy_direct_boost &strong_classifier, mbl_data_wrapper< vnl_vector< double > > &inputs, const vcl_vector< unsigned > &outputs) const
	Calc threshold for current version of strong classifier.
double	calc_prop_same (const vcl_vector< bool > &vec1, const vcl_vector< bool > &vec2) const
	Calc similarity between two 1d input vectors.
Private Attributes
bool	calc_all_thresholds_
	calc all threshold not just last one.
double	prop_
	proportion of sum of square distance from mean used to say whether two classifiers are too similar.
bool	save_data_to_disk_
	bool indicating whether or not to save data to disk.
int	bs_
	batch size.
int	max_n_clfrs_
	maximum number of classifiers found by Adaboost algorithm.
clsfy_builder_1d *	weak_builder_
	pointer to 1d builder used to build each weak classifier.

Detailed Description

Base for classes to build clsfy_classifier_base objects.

Definition at line 22 of file clsfy_direct_boost_builder.h.

Constructor & Destructor Documentation

clsfy_direct_boost_builder::clsfy_direct_boost_builder ( )

Definition at line 32 of file clsfy_direct_boost_builder.cxx.

clsfy_direct_boost_builder::~clsfy_direct_boost_builder ( ) [virtual]

Definition at line 39 of file clsfy_direct_boost_builder.cxx.

Member Function Documentation

void clsfy_direct_boost_builder::b_read ( vsl_b_istream & bfs ) [virtual]

Load class from binary file stream.

Implements clsfy_builder_base.

Definition at line 498 of file clsfy_direct_boost_builder.cxx.

void clsfy_direct_boost_builder::b_write ( vsl_b_ostream & bfs ) const [virtual]

Save class to binary file stream.

Implements clsfy_builder_base.

Definition at line 485 of file clsfy_direct_boost_builder.cxx.

double clsfy_direct_boost_builder::build	(	clsfy_classifier_base &	model,
		mbl_data_wrapper< vnl_vector< double > > &	inputs,
		unsigned	nClasses,
		const vcl_vector< unsigned > &	outputs
	)		const `[virtual]`

Build model from data.

Build classifier composed of 1d classifiers working on individual vector elements.

Return the mean error over the training set. For many classifiers, you may use nClasses==1 to indicate a binary classifier

Builds an n-component classifier, each component of which is a 1D classifier working on a single element of the input vector.

Implements clsfy_builder_base.

Definition at line 148 of file clsfy_direct_boost_builder.cxx.

double clsfy_direct_boost_builder::calc_prop_same	(	const vcl_vector< bool > &	vec1,
		const vcl_vector< bool > &	vec2
	)		const `[private]`

Calc similarity between two 1d input vectors.

Definition at line 60 of file clsfy_direct_boost_builder.cxx.

double clsfy_direct_boost_builder::calc_threshold	(	clsfy_direct_boost &	strong_classifier,
		mbl_data_wrapper< vnl_vector< double > > &	inputs,
		const vcl_vector< unsigned > &	outputs
	)		const `[private]`

Calc threshold for current version of strong classifier.

Definition at line 76 of file clsfy_direct_boost_builder.cxx.

clsfy_builder_base * clsfy_direct_boost_builder::clone ( ) const [virtual]

Create a copy on the heap and return base class pointer.

Implements clsfy_builder_base.

Definition at line 464 of file clsfy_direct_boost_builder.cxx.

void clsfy_builder_base::config ( vcl_istream & as ) [virtual, inherited]

Initialise the parameters from a text stream.

Default case accepts no parameters.

Reimplemented in clsfy_rbf_svm_smo_1_builder, clsfy_parzen_builder, clsfy_knn_builder, clsfy_null_builder, and clsfy_binary_1d_wrapper_builder.

Definition at line 26 of file clsfy_builder_base.cxx.

vcl_string clsfy_direct_boost_builder::is_a ( ) const [virtual]

Name of the class.

Reimplemented from clsfy_builder_base.

Definition at line 53 of file clsfy_direct_boost_builder.cxx.

bool clsfy_direct_boost_builder::is_class ( vcl_string const & s ) const [virtual]

Name of the class.

Reimplemented from clsfy_builder_base.

Definition at line 46 of file clsfy_direct_boost_builder.cxx.

vcl_auto_ptr< clsfy_builder_base > clsfy_builder_base::new_builder ( vcl_istream & as ) [static, inherited]

Load description from a text stream.

The stream should contain the name of the feature extractor class that will be used, followed by a brace-enclosed list of parameters for the builder. This function will construct the appropriate clsfy_builder_base derivative and return that.

Exceptions: