semantics::Context_cell< T, N > Class Template Reference

class containing conditioning context for marginal cells More...

#include <Marginal_cell.h>

Inheritance diagram for semantics::Context_cell< T, N >:

Public Types
typedef boost::shared_ptr < Context_cell< T, N > >	Self_ptr
typedef Cell_traits< T, N >	Traits
typedef Categorical_event< N >	Key_type
typedef boost::unordered_map < Key_type, Self_ptr >	Map
Public Types inherited from semantics::Context_cell_base
typedef boost::shared_ptr < Context_cell_base >	Self_ptr
Public Types inherited from semantics::Cell
typedef boost::shared_ptr< Cell >	Self_ptr
typedef std::vector< size_t >	Step_sizes

Public Member Functions
	Context_cell (const Key_type &key)
	Constructs a cell which is purely context information. More...
	Context_cell (const Context_cell &other)
	copy ctor More...
virtual	~Context_cell ()
	destructor More...
const Key_type &	key () const
	return data More...
Public Member Functions inherited from semantics::Context_cell_base
int	diversity () const
	get number of distinct outcomes in this context More...
double	alpha () const
	get the Dirichlet Process concentration parameter for this context More...
virtual void	increment_diversity ()
	increment the number of distinct outcomes from this context More...
virtual void	decrement_diversity ()
	decrement the number of distinct outcomes from this context More...
void	resample_alpha ()
	resample alpha value from conditional posterior More...
double	effective_tables () const
	total mass for distribution over the "dish" for a new table More...
double	effective_observations () const
	total mass for distribution over dish for a new customer More...
double	table_backoff_weight () const
	probability that a new table will draw from the level above this More...
double	observation_backoff_weight () const
	probability that a new customer will sit at a new table More...
Public Member Functions inherited from semantics::Cell
const size_t &	count () const
	get current count in this cell More...
const size_t &	table_count () const
	get number of "tables" in this cell More...
virtual void	increment ()
	increment count More...
virtual void	decrement ()
	decrement count More...
virtual void	increment_table_count ()
	increment table count More...
virtual void	decrement_table_count ()
	decrement table count More...

Static Public Member Functions
static void	resample_all_alphas ()
	resample all CRP alpha values at this level only More...
Static Public Member Functions inherited from semantics::Context_cell_base
static const double &	a ()
static const double &	b ()

Static Public Attributes
static Map	map
static bool &	VERBOSE = Cell::VERBOSE
Static Public Attributes inherited from semantics::Cell
static bool	VERBOSE = false

Friends
std::ostream &	operator (std::ostream &os, const Map &map)
	output a contingency table in human readable form to an ostream More...

Additional Inherited Members
Protected Member Functions inherited from semantics::Context_cell_base
	Context_cell_base ()
	constructor More...
Protected Member Functions inherited from semantics::Cell
	Cell ()
	default ctor More...
virtual	~Cell ()
	virtual destructor More...
Protected Attributes inherited from semantics::Cell
size_t	count_
size_t	table_count_

Detailed Description

template<typename T, size_t N>
class semantics::Context_cell< T, N >

class containing conditioning context for marginal cells

Member Typedef Documentation

template<typename T, size_t N>

typedef Categorical_event<N> semantics::Context_cell< T, N >::Key_type

template<typename T, size_t N>

typedef boost::unordered_map<Key_type, Self_ptr> semantics::Context_cell< T, N >::Map

template<typename T, size_t N>

typedef boost::shared_ptr<Context_cell<T, N> > semantics::Context_cell< T, N >::Self_ptr

template<typename T, size_t N>

typedef Cell_traits<T,N> semantics::Context_cell< T, N >::Traits

Constructor & Destructor Documentation

template<class T , size_t N>

semantics::Context_cell< T, N >::Context_cell

(

const Key_type &

key

)

Constructs a cell which is purely context information.

Parameters

key	container holding values of each categorical variable

template<class T , size_t N>

semantics::Context_cell< T, N >::Context_cell

(

const Context_cell< T, N > &

other

)

copy ctor

template<class T , size_t N>

semantics::Context_cell< T, N >::~Context_cell ( )

virtual

destructor

Member Function Documentation

template<typename T, size_t N>

const Key_type& semantics::Context_cell< T, N >::key ( ) const

inlinevirtual

return data

Implements semantics::Cell.

template<class T , size_t N>

void semantics::Context_cell< T, N >::resample_all_alphas ( )

static

resample all CRP alpha values at this level only

Friends And Related Function Documentation

template<typename T, size_t N>

std::ostream& operator ( std::ostream &  os, const Map &  map  )

friend

output a contingency table in human readable form to an ostream

Member Data Documentation

template<typename T, size_t N>

Context_cell< T, N >::Map semantics::Context_cell< T, N >::map

static

template<typename T, size_t N>

bool & semantics::Context_cell< T, N >::VERBOSE = Cell::VERBOSE

static

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

• /work/kobus/src/lib/semantics/Marginal_cell.h