freeling::np Class Reference

The class np implements a simple proper noun recognizer. More...

#include <np.h>

Inheritance diagram for freeling::np:

Collaboration diagram for freeling::np:

List of all members.

Public Member Functions
	np (const std::wstring &)
	Constructor.
Private Member Functions
int	ComputeToken (int, sentence::iterator &, sentence &) const
	Compute the right token code for word j from given state.
void	ResetActions (ner_status *) const
	Reset flag about capitalized noun at sentence start.
void	StateActions (int, int, int, sentence::const_iterator, ner_status *) const
	Perform necessary actions in "state" reached from state "origin" via word j interpreted as code "token": Basically, set flag about capitalized noun at sentence start.
void	SetMultiwordAnalysis (sentence::iterator, int, const ner_status *) const
	Set the appropriate lemma and tag for the new multiword.
Private Attributes
std::set< std::wstring >	func
	set of function words
std::set< std::wstring >	punct
	set of special punctuation tags
std::set< std::wstring >	names
	set of words to be considered possible NPs at sentence beggining
std::map< std::wstring, int >	ignore_tags
	set of words/tags to be ignored as NE parts, even if they are capitalized
std::map< std::wstring, int >	ignore_words
std::set< std::wstring >	prefixes
	sets of NE affixes
std::set< std::wstring >	suffixes
freeling::regexp	RE_NounAdj
freeling::regexp	RE_Closed
freeling::regexp	RE_DateNumPunct

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Detailed Description

The class np implements a simple proper noun recognizer.

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Constructor & Destructor Documentation

freeling::np::np

(

const std::wstring &

npFile

)

Constructor.

Create a proper noun recognizer.

References freeling::config_file::add_section(), freeling::config_file::close(), ERROR_CRASH, freeling::automat< ner_status >::Final, func, freeling::config_file::get_content_line(), freeling::config_file::get_section(), ignore_tags, ignore_words, freeling::automat< ner_status >::initialState, freeling::util::lowercase(), MAX_STATES, MAX_TOKENS, names, freeling::config_file::open(), prefixes, punct, RE_Closed, RE_DateNumPunct, freeling::util::RE_is_capitalized, RE_NounAdj, ST_FUN, ST_IN, ST_NP, ST_PREF, ST_STOP, ST_SUF, freeling::automat< ner_status >::stopState, suffixes, TK_mFun, TK_mPref, TK_mSuf, TK_mUpper, TK_sNounUpp, TK_sUnkUpp, TRACE, freeling::automat< ner_status >::trans, and WARNING.

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Member Function Documentation

int freeling::np::ComputeToken	(	int	state,
		sentence::iterator &	j,
		sentence &	se
	)		const [private, virtual]

Compute the right token code for word j from given state.

Reimplemented from freeling::ner_module.

References ignore_tags, ignore_words, punct, and TK_other.

void freeling::np::ResetActions

(

ner_status *

st

)

const [private, virtual]

Reset flag about capitalized noun at sentence start.

Reimplemented from freeling::ner_module.

References freeling::ner_status::initialNoun.

void freeling::np::SetMultiwordAnalysis	(	sentence::iterator	i,
		int	fstate,
		const ner_status *	st
	)		const [private, virtual]

Set the appropriate lemma and tag for the new multiword.

Reimplemented from freeling::ner_module.

References freeling::ner_status::initialNoun, and TRACE.

void freeling::np::StateActions	(	int	origin,
		int	state,
		int	token,
		sentence::const_iterator	j,
		ner_status *	st
	)		const [private, virtual]

Perform necessary actions in "state" reached from state "origin" via word j interpreted as code "token": Basically, set flag about capitalized noun at sentence start.

Reimplemented from freeling::ner_module.

References freeling::ner_status::initialNoun, int2wstring, ST_NP, TK_sNounUpp, and TRACE.

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Member Data Documentation

std::set<std::wstring> freeling::np::func [private]

set of function words

Referenced by np().

std::map<std::wstring,int> freeling::np::ignore_tags [private]

set of words/tags to be ignored as NE parts, even if they are capitalized

Referenced by ComputeToken(), and np().

std::map<std::wstring,int> freeling::np::ignore_words [private]

Referenced by ComputeToken(), and np().

std::set<std::wstring> freeling::np::names [private]

set of words to be considered possible NPs at sentence beggining

Referenced by np().

std::set<std::wstring> freeling::np::prefixes [private]

sets of NE affixes

Referenced by np().

std::set<std::wstring> freeling::np::punct [private]

set of special punctuation tags

Referenced by ComputeToken(), and np().

freeling::regexp freeling::np::RE_Closed [private]

Referenced by np().

freeling::regexp freeling::np::RE_DateNumPunct [private]

Referenced by np().

freeling::regexp freeling::np::RE_NounAdj [private]

Referenced by np().

std::set<std::wstring> freeling::np::suffixes [private]

Referenced by np().

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

• np.h
• np.cc