#include <keyword_weights.hpp>

Collaboration diagram for jubatus::core::fv_converter::keyword_weights:

Public Member Functions
void	add_weight (const std::string &key, float weight)

void	clear ()

uint64_t	get_document_count () const

size_t	get_document_frequency (const std::string &key) const

float	get_user_weight (const std::string &key) const

	keyword_weights ()

void	merge (const keyword_weights &w)

	MSGPACK_DEFINE (document_count_, document_frequencies_, weights_)

std::string	to_string () const

void	update_document_frequency (const common::sfv_t &fv)

Private Types
typedef jubatus::util::data::unordered_map< std::string, float >	weight_t

Private Member Functions
double	get_global_weight (const std::string &key) const

Private Attributes
uint64_t	document_count_

counter< std::string >	document_frequencies_

weight_t	weights_

Detailed Description

Definition at line 30 of file keyword_weights.hpp.

Member Typedef Documentation

typedef jubatus::util::data::unordered_map<std::string, float> jubatus::core::fv_converter::keyword_weights::weight_t

private

Definition at line 61 of file keyword_weights.hpp.

Constructor & Destructor Documentation

jubatus::core::fv_converter::keyword_weights::keyword_weights ( )

Definition at line 44 of file keyword_weights.cpp.

     : document_count_(),
       document_frequencies_(),
       weights_() {
 }

Member Function Documentation

void jubatus::core::fv_converter::keyword_weights::add_weight	(	const std::string &	key,
		float	weight
	)

Definition at line 57 of file keyword_weights.cpp.

References weights_.

Referenced by jubatus::core::fv_converter::weight_manager::add_weight().

                                                                 {
   weights_[key] = weight;
 }

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void jubatus::core::fv_converter::keyword_weights::clear ( )

Definition at line 78 of file keyword_weights.cpp.

References jubatus::core::fv_converter::counter< T >::clear(), document_count_, document_frequencies_, and weights_.

Referenced by jubatus::core::fv_converter::weight_manager::clear(), and jubatus::core::fv_converter::weight_manager::put_diff().

                             {
   document_count_ = 0;
   document_frequencies_.clear();
   weight_t().swap(weights_);
 }

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uint64_t jubatus::core::fv_converter::keyword_weights::get_document_count ( ) const

inline

Definition at line 40 of file keyword_weights.hpp.

References document_count_.

Referenced by jubatus::core::fv_converter::weight_manager::get_document_count().

                                       {
     return document_count_;
   }

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size_t jubatus::core::fv_converter::keyword_weights::get_document_frequency ( const std::string & key ) const

inline

Definition at line 36 of file keyword_weights.hpp.

References document_frequencies_.

Referenced by jubatus::core::fv_converter::weight_manager::get_document_frequency().

                                                             {
     return document_frequencies_[key];
   }

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double jubatus::core::fv_converter::keyword_weights::get_global_weight ( const std::string & key ) const

private

float jubatus::core::fv_converter::keyword_weights::get_user_weight ( const std::string & key ) const

Definition at line 61 of file keyword_weights.cpp.

References weights_.

Referenced by jubatus::core::fv_converter::weight_manager::get_user_weight().

                                                               {
   weight_t::const_iterator wit = weights_.find(key);
   if (wit != weights_.end()) {
     return wit->second;
   } else {
     return 0;
   }
 }

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void jubatus::core::fv_converter::keyword_weights::merge ( const keyword_weights & w )

Definition at line 70 of file keyword_weights.cpp.

References jubatus::core::fv_converter::counter< T >::add(), document_count_, document_frequencies_, and weights_.

Referenced by jubatus::core::fv_converter::versioned_weight_diff::merge(), jubatus::core::fv_converter::weight_manager::mix(), and jubatus::core::fv_converter::weight_manager::put_diff().

                                                     {
   document_count_ += w.document_count_;
   document_frequencies_.add(w.document_frequencies_);
   weight_t weights(w.weights_);
   weights.insert(weights_.begin(), weights_.end());
   weights_.swap(weights);
 }

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jubatus::core::fv_converter::keyword_weights::MSGPACK_DEFINE	(	document_count_	,
		document_frequencies_	,
		weights_
	)

string jubatus::core::fv_converter::keyword_weights::to_string ( ) const

Definition at line 84 of file keyword_weights.cpp.

References document_count_, document_frequencies_, and weights_.

Referenced by jubatus::core::fv_converter::weight_manager::to_string().

                                         {
   stringstream ss;
   ss << "document_count: " << document_count_
      << " document_frequencies: " << document_frequencies_
      << " weights: {";
   for (weight_t::const_iterator it = weights_.begin();
        it != weights_.end();
        ++it) {
     ss << it->first << " => " << it->second << std::endl;
   }
   ss << " }";
   return ss.str();
 }

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void jubatus::core::fv_converter::keyword_weights::update_document_frequency ( const common::sfv_t & fv )

Definition at line 50 of file keyword_weights.cpp.

References document_count_, and document_frequencies_.

Referenced by jubatus::core::fv_converter::weight_manager::update_weight().

                                                                {
   ++document_count_;
   for (sfv_t::const_iterator it = fv.begin(); it != fv.end(); ++it) {
     ++document_frequencies_[it->first];
   }
 }