The main syntactic tree object for semantic parsing. More...

#include <Semspear_tree.h>

Public Types
enum	Role { TOP, ROOT, UNARY, DEPENDENCY, PUNCTUATION, COORD, NUM_ROLES }

typedef boost::shared_ptr < Semspear_tree >	Self_ptr

typedef Syntactic_event::Word_type	Word

typedef boost::shared_ptr< Word >	Word_ptr

typedef Syntactic_event::Label_type	Label

typedef boost::shared_ptr< Label >	Label_ptr

typedef std::list< Self_ptr >	Child_list

typedef Syntactic_event::Event_ptr	Syn_event_ptr

typedef Semantic_step_event::Event_ptr	Sem_event_ptr

typedef Syntactic_event::Node_data	Node_data

typedef boost::shared_ptr < Elaboration_tree >	Sem_tree_ptr

typedef Elaboration_tree::Elab_ptr	Elab_ptr

typedef Elaboration_tree::Elab_ptr_const	Elab_ptr_const

typedef Elaboration_tree::Hash_pair	Hash_pair

typedef std::map < Lexicon_db::Val_type, bool >	LF_map_t

typedef std::map< Word, size_t >	Freq_map

typedef std::list < Token_map::Key_type >	Symbol_list

Public Member Functions
	Semspear_tree (const Role &role, const bool &learn=true, const bool &collins=false)
	default constructor, creates an empty tree More...

	Semspear_tree (const Word &word, const Label &label, const Role &role, const bool &learn=true, const bool &collins=false)
	constructor for terminal nodes, which directly specify word More...

	Semspear_tree (const Label &label, const Role &role, const bool &learn=true, const bool &collins=false)
	constructor for nonterminals, which only specify label More...

	Semspear_tree (const Self_ptr other, const bool &learn=false)
	copy constructor More...

	~Semspear_tree ()
	decrements word count when destructed (if learn_ is true) More...

Word	word () const

Label	label () const
	returns the label field More...

const Self_ptr	head () const
	returns a pointer to the head subtree More...

const Child_list &	children () const
	returns the list of children More...

Word	head_word () const
	get the head word for this subtree More...

Label	head_tag () const
	get the head tag for this subtree More...

Elab_ptr_const	semantic_root () const
	get a pointer to the root of the associated semantic tree More...

const Hash_pair &	semantic_codes () const
	get the pair of semantic codes at the root of this subtree More...

const Syn_event_ptr	syntactic_event () const
	returns a pointer to the probabilistic event at the root More...

bool	is_terminal () const
	is this subtree a leaf? More...

bool	is_punctuation () const
	is this a punctuation node? More...

bool	is_coordination () const
	is this a coordinating conjunction? More...

double	node_log_probability () const
	compute log prob of this node by itself More...

double	subtree_log_probability () const
	compute log prob of this tree according to events More...

void	set_word (const Word &word)
	assign a new value to the word field More...

void	set_label (const Label &label)
	assign a new value to the label field More...

void	set_head (const Child_list::const_iterator head)
	assign a new head and acquire its info More...

void	set_role (const Role &role)
	set the syntactic role of this node More...

void	set_coord (const bool new_value)
	set the coordinated phrase flag More...

void	set_semantic_tree (const Sem_tree_ptr new_tree)
	associate this syntactic tree w/ a new semantic tree More...

void	set_semantic_data (const Elab_ptr_const semantic_parent, const Step_code_t &step_code)
	set semantic data for this node More...

void	add_child (const Self_ptr &new_child, bool on_left=false)
	append a new child subtree More...

void	preprocess_tree ()
	do some preprocessing in accordance with Collins' model More...

void	complete_tree ()
	signals that tree is fully built, and to process data More...

void	release_event_counts ()

void	reacquire_event_counts ()

void	reacquire_event_counts_recursively ()

void	update_event_views_recursively ()

void	print_constituency_tree (std::ostream &os, bool is_head=false, int indent_level=0) const
	print as constituency tree (marking head) More...

void	print_dependency_tree (std::ostream &os, bool is_head=false, int indent_level=0) const
	display as dependency tree More...

void	print_events_with_probabilities (std::ostream &os) const
	print events and associated log probabilities More...

void	print_subtree_view_counts (std::ostream &os) const
	print count info at each node More...

Static Public Member Functions
static Lexicon_db &	lexicon ()
	return a reference to the underlying terminal lexicon More...

static Nonterminal_db &	nt_lexicon ()
	return a reference to the underlying nonterminal lexicon More...

static LF_map_t &	lf_word_map ()
	return a reference to the map indexing whether words are rare More...

static Freq_map &	word_freq_map ()
	return a reference to the map indexing actual word frequencies More...

Static Public Attributes
static bool	VERBOSE = false
	should debugging messages be printed? More...

Friends
void	initialize_special_symbols ()

boost::tuple< Self_ptr, kjb::Vector >	propose_new_tree (const Self_ptr source)

void	resample_event_tables (Self_ptr &source)

Detailed Description

The main syntactic tree object for semantic parsing.

Member Typedef Documentation

typedef std::list<Self_ptr> semantics::Semspear_tree::Child_list

typedef Elaboration_tree::Elab_ptr semantics::Semspear_tree::Elab_ptr

typedef Elaboration_tree::Elab_ptr_const semantics::Semspear_tree::Elab_ptr_const

typedef std::map<Word, size_t> semantics::Semspear_tree::Freq_map

typedef Elaboration_tree::Hash_pair semantics::Semspear_tree::Hash_pair

typedef Syntactic_event::Label_type semantics::Semspear_tree::Label

typedef boost::shared_ptr<Label> semantics::Semspear_tree::Label_ptr

typedef std::map<Lexicon_db::Val_type, bool> semantics::Semspear_tree::LF_map_t

typedef Syntactic_event::Node_data semantics::Semspear_tree::Node_data

typedef boost::shared_ptr<Semspear_tree> semantics::Semspear_tree::Self_ptr

typedef Semantic_step_event::Event_ptr semantics::Semspear_tree::Sem_event_ptr

typedef boost::shared_ptr<Elaboration_tree> semantics::Semspear_tree::Sem_tree_ptr

typedef std::list<Token_map::Key_type> semantics::Semspear_tree::Symbol_list

typedef Syntactic_event::Event_ptr semantics::Semspear_tree::Syn_event_ptr

typedef Syntactic_event::Word_type semantics::Semspear_tree::Word

typedef boost::shared_ptr<Word> semantics::Semspear_tree::Word_ptr

Member Enumeration Documentation

enum semantics::Semspear_tree::Role

Enumerator
TOP
ROOT
UNARY
DEPENDENCY
PUNCTUATION
COORD
NUM_ROLES

Constructor & Destructor Documentation

semantics::Semspear_tree::Semspear_tree	(	const Role &	role,
		const bool &	learn = `true`,
		const bool &	collins = `false`
	)

default constructor, creates an empty tree

Parameters

learn governs whether to update model using this tree

semantics::Semspear_tree::Semspear_tree	(	const Word &	word,
		const Label &	label,
		const Role &	role,
		const bool &	learn = `true`,
		const bool &	collins = `false`
	)

constructor for terminal nodes, which directly specify word

Parameters

word	the literal word at this node (terminals only)
label	the non- or preterminal label
learn	governs whether to update model using this tree

semantics::Semspear_tree::Semspear_tree	(	const Label &	label,
		const Role &	role,
		const bool &	learn = `true`,
		const bool &	collins = `false`
	)

constructor for nonterminals, which only specify label

semantics::Semspear_tree::Semspear_tree	(	const Self_ptr	other,
		const bool &	learn = `false`
	)

copy constructor

Remarks: copies self-contained data and creates new copies of child trees (rather than simply copying the pointers). Resulting copy defaults to have learn_ = false so that any training tree is only counted once.

semantics::Semspear_tree::~Semspear_tree ( )

decrements word count when destructed (if learn_ is true)

Member Function Documentation

void semantics::Semspear_tree::add_child	(	const Self_ptr &	new_child,
		bool	on_left = `false`
	)

append a new child subtree

const Child_list& semantics::Semspear_tree::children ( ) const

inline

returns the list of children

void semantics::Semspear_tree::complete_tree ( )

inline

signals that tree is fully built, and to process data

const Self_ptr semantics::Semspear_tree::head ( ) const

inline

returns a pointer to the head subtree

Semspear_tree::Label semantics::Semspear_tree::head_tag ( ) const

get the head tag for this subtree

Semspear_tree::Word semantics::Semspear_tree::head_word ( ) const

get the head word for this subtree

bool semantics::Semspear_tree::is_coordination ( ) const

inline

is this a coordinating conjunction?

bool semantics::Semspear_tree::is_punctuation ( ) const

inline

is this a punctuation node?

bool semantics::Semspear_tree::is_terminal ( ) const

inline

is this subtree a leaf?

Label semantics::Semspear_tree::label ( ) const

inline

returns the label field

static Lexicon_db& semantics::Semspear_tree::lexicon ( )

inlinestatic

return a reference to the underlying terminal lexicon

static LF_map_t& semantics::Semspear_tree::lf_word_map ( )

inlinestatic

return a reference to the map indexing whether words are rare

double semantics::Semspear_tree::node_log_probability ( ) const

compute log prob of this node by itself

Nonterminal_db & semantics::Semspear_tree::nt_lexicon ( )

static

return a reference to the underlying nonterminal lexicon

void semantics::Semspear_tree::preprocess_tree ( )

do some preprocessing in accordance with Collins' model

void semantics::Semspear_tree::print_constituency_tree	(	std::ostream &	os,
		bool	is_head = `false`,
		int	indent_level = `0`
	)		const

print as constituency tree (marking head)

void semantics::Semspear_tree::print_dependency_tree	(	std::ostream &	os,
		bool	is_head = `false`,
		int	indent_level = `0`
	)		const

display as dependency tree

void semantics::Semspear_tree::print_events_with_probabilities ( std::ostream & os ) const

print events and associated log probabilities

void semantics::Semspear_tree::print_subtree_view_counts ( std::ostream & os ) const

print count info at each node

void semantics::Semspear_tree::reacquire_event_counts ( )

inline

void semantics::Semspear_tree::reacquire_event_counts_recursively ( )

inline

void semantics::Semspear_tree::release_event_counts ( )

inline

const Hash_pair& semantics::Semspear_tree::semantic_codes ( ) const

inline

get the pair of semantic codes at the root of this subtree

Semspear_tree::Elab_ptr_const semantics::Semspear_tree::semantic_root ( ) const

get a pointer to the root of the associated semantic tree

void semantics::Semspear_tree::set_coord ( const bool new_value )

inline

set the coordinated phrase flag

void semantics::Semspear_tree::set_head ( const Child_list::const_iterator head )

assign a new head and acquire its info

void semantics::Semspear_tree::set_label ( const Label & label )

assign a new value to the label field

void semantics::Semspear_tree::set_role ( const Role & role )

inline

set the syntactic role of this node

void semantics::Semspear_tree::set_semantic_data	(	const Elab_ptr_const	semantic_parent,
		const Step_code_t &	step_code
	)

set semantic data for this node

void semantics::Semspear_tree::set_semantic_tree ( const Sem_tree_ptr new_tree )

associate this syntactic tree w/ a new semantic tree

void semantics::Semspear_tree::set_word ( const Word & word )

assign a new value to the word field

double semantics::Semspear_tree::subtree_log_probability ( ) const

compute log prob of this tree according to events

const Syn_event_ptr semantics::Semspear_tree::syntactic_event ( ) const

inline

returns a pointer to the probabilistic event at the root

void semantics::Semspear_tree::update_event_views_recursively ( )

Word semantics::Semspear_tree::word ( ) const

inline

static Freq_map& semantics::Semspear_tree::word_freq_map ( )

inlinestatic

return a reference to the map indexing actual word frequencies

Friends And Related Function Documentation

void initialize_special_symbols ( )

friend

boost::tuple<Self_ptr, kjb::Vector> propose_new_tree ( const Self_ptr source )

friend

void resample_event_tables ( Self_ptr & source )

friend

Member Data Documentation

bool semantics::Semspear_tree::VERBOSE = false

static

should debugging messages be printed?

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

/work/kobus/src/lib/semantics/Semspear_tree.h
/work/kobus/src/lib/semantics/Semspear_tree.cpp

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Friends

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation