jubatus::core::nearest_neighbor::lsh Class Reference

#include <lsh.hpp>

Inheritance diagram for jubatus::core::nearest_neighbor::lsh:

Collaboration diagram for jubatus::core::nearest_neighbor::lsh:

Classes
struct	config

Public Member Functions
	lsh (const config &conf, jubatus::util::lang::shared_ptr< storage::column_table > table, const std::string &id)
	lsh (const config &conf, jubatus::util::lang::shared_ptr< storage::column_table > table, std::vector< storage::column_type > &schema, const std::string &id)
virtual std::string	type () const
Public Member Functions inherited from jubatus::core::nearest_neighbor::bit_vector_nearest_neighbor_base
	bit_vector_nearest_neighbor_base (uint32_t bitnum, jubatus::util::lang::shared_ptr< storage::column_table > table, const std::string &id)
	bit_vector_nearest_neighbor_base (uint32_t bitnum, jubatus::util::lang::shared_ptr< storage::column_table > table, std::vector< storage::column_type > &schema, const std::string &id)
uint32_t	bitnum () const
virtual void	neighbor_row (const common::sfv_t &query, std::vector< std::pair< std::string, float > > &ids, uint64_t ret_num) const
virtual void	neighbor_row (const std::string &query_id, std::vector< std::pair< std::string, float > > &ids, uint64_t ret_num) const
virtual void	set_row (const std::string &id, const common::sfv_t &sfv)
Public Member Functions inherited from jubatus::core::nearest_neighbor::nearest_neighbor_base
virtual float	calc_similarity (float distance) const
virtual void	clear ()
void	get_all_row_ids (std::vector< std::string > &ids) const
jubatus::util::lang::shared_ptr< const storage::column_table >	get_const_table () const
framework::mixable *	get_mixable () const
jubatus::util::lang::shared_ptr< storage::column_table >	get_table ()
	nearest_neighbor_base (jubatus::util::lang::shared_ptr< storage::column_table > table, const std::string &id)
void	pack (framework::packer &packer) const
virtual void	similar_row (const common::sfv_t &query, std::vector< std::pair< std::string, float > > &ids, uint64_t ret_num) const
virtual void	similar_row (const std::string &query_id, std::vector< std::pair< std::string, float > > &ids, uint64_t ret_num) const
void	unpack (msgpack::object o)
virtual	~nearest_neighbor_base ()

Private Member Functions
virtual storage::bit_vector	hash (const common::sfv_t &sfv) const

Additional Inherited Members
Protected Attributes inherited from jubatus::core::nearest_neighbor::nearest_neighbor_base
std::string	my_id_

Detailed Description

Definition at line 34 of file lsh.hpp.

Constructor & Destructor Documentation

jubatus::core::nearest_neighbor::lsh::lsh	(	const config &	conf,
		jubatus::util::lang::shared_ptr< storage::column_table >	table,
		const std::string &	id
	)

Definition at line 28 of file lsh.cpp.

References jubatus::core::nearest_neighbor::lsh::config::hash_num, and JUBATUS_EXCEPTION.

    : bit_vector_nearest_neighbor_base(conf.hash_num, table, id) {

  if (!(1 <= conf.hash_num)) {
    throw JUBATUS_EXCEPTION(
        common::invalid_parameter("1 <= hash_num"));
  }
}

jubatus::core::nearest_neighbor::lsh::lsh	(	const config &	conf,
		jubatus::util::lang::shared_ptr< storage::column_table >	table,
		std::vector< storage::column_type > &	schema,
		const std::string &	id
	)

Definition at line 40 of file lsh.cpp.

References jubatus::core::nearest_neighbor::lsh::config::hash_num, and JUBATUS_EXCEPTION.

    : bit_vector_nearest_neighbor_base(conf.hash_num, table, schema, id) {

  if (!(1 <= conf.hash_num)) {
    throw JUBATUS_EXCEPTION(
        common::invalid_parameter("1 <= hash_num"));
  }
}

Member Function Documentation

storage::bit_vector jubatus::core::nearest_neighbor::lsh::hash ( const common::sfv_t &  sfv ) const

privatevirtual

Implements jubatus::core::nearest_neighbor::bit_vector_nearest_neighbor_base.

Definition at line 53 of file lsh.cpp.

References jubatus::core::nearest_neighbor::bit_vector_nearest_neighbor_base::bitnum(), and jubatus::core::nearest_neighbor::cosine_lsh().

                                                        {
  return cosine_lsh(sfv, bitnum());
}

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virtual std::string jubatus::core::nearest_neighbor::lsh::type ( ) const

inlinevirtual

Implements jubatus::core::nearest_neighbor::nearest_neighbor_base.

Definition at line 55 of file lsh.hpp.

{ return "lsh"; }

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

• jubatus/core/nearest_neighbor/lsh.hpp
• jubatus/core/nearest_neighbor/lsh.cpp