proto/Source/evaluation.h File Reference

Declaration of evaluation module interface. More...

#include "ngrams.h"

Namespaces
namespace	ace
namespace	ace::eval
Classes
class	ace::EvaluationTables
	Class evaluates contigency and expected frequency tables. More...
Typedefs
typedef std::vector< double >	ace::exp_table_t
	Container acts like table of expected frequencies (which are floating point numbers).
Functions
double	ace::eval::chi_square_test (const EvaluationTables &tables)
double	ace::eval::log_likelihood_ratio (const EvaluationTables &tables)
double	ace::eval::mutual_information (const EvaluationTables &tables)
double	ace::eval::pearsons_coefficient (const EvaluationTables &tables)
double	ace::eval::t_test (const EvaluationTables &tables)
double	ace::eval::z_score (const EvaluationTables &tables)

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Detailed Description

Declaration of evaluation module interface.

Evaluation module performs evaluation of statistics such as:

• chi square test
• log likelihood ratio
• mutual information
• pearsons coefficient
• t test
• z score

The only required input is table of *-frequencies of given N-gram.

Statistics evaluation requires calculation of contigency table and expected *-frequencies table, which are therefore also available.

(C) Ceslav Przywara 2008, MFF UK Prague