np Class Reference

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

#include <np.h>

Inheritance diagram for np:

Collaboration diagram for np:

List of all members.

Public Member Functions
	np (const std::wstring &)
	Constructor.
Private Member Functions
int	ComputeToken (int, sentence::iterator &, sentence &)
	Compute the right token code for word j from given state.
void	ResetActions ()
	Reset flag about capitalized noun at sentence start.
void	StateActions (int, int, int, sentence::const_iterator)
	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)
	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
bool	initialNoun
	it is a noun at the beggining of the sentence
boost::u32regex	RE_NounAdj
boost::u32regex	RE_Closed
boost::u32regex	RE_DateNumPunct

---

Detailed Description

The class np implements a simple proper noun recognizer.

---

Constructor & Destructor Documentation

np::np

(

const std::wstring &

npFile

)

Constructor.

Create a proper noun recognizer.

References ERROR_CRASH, automat::Final, func, ignore_tags, ignore_words, automat::initialState, util::is_capitalized(), MAX_STATES, MAX_TOKENS, names, util::open_utf8_file(), prefixes, punct, RE_CLO, RE_Closed, RE_DateNumPunct, RE_DNP, RE_NA, RE_NounAdj, ST_FUN, ST_IN, ST_NP, ST_PREF, ST_STOP, ST_SUF, automat::stopState, suffixes, TK_mFun, TK_mPref, TK_mSuf, TK_mUpper, TK_sNounUpp, TK_sUnkUpp, TRACE, automat::trans, and WARNING.

---

Member Function Documentation

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

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

Reimplemented from ner_module.

References ignore_tags, ignore_words, punct, and TK_other.

void np::ResetActions

(

)

[private, virtual]

Reset flag about capitalized noun at sentence start.

Reimplemented from ner_module.

References initialNoun.

void np::SetMultiwordAnalysis	(	sentence::iterator	i,
		int	fstate
	)		[private, virtual]

Set the appropriate lemma and tag for the new multiword.

Reimplemented from ner_module.

References initialNoun, and TRACE.

void np::StateActions	(	int	origin,
		int	state,
		int	token,
		sentence::const_iterator	j
	)		[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 ner_module.

References initialNoun, util::int2wstring(), ST_NP, TK_sNounUpp, and TRACE.

---

Member Data Documentation

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

set of function words

Referenced by np().

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

Referenced by ComputeToken(), and np().

bool np::initialNoun [private]

it is a noun at the beggining of the sentence

Referenced by ResetActions(), SetMultiwordAnalysis(), and StateActions().

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

set of words to be considered possible NPs at sentence beggining

Referenced by np().

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

sets of NE affixes

Referenced by np().

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

set of special punctuation tags

Referenced by ComputeToken(), and np().

boost::u32regex np::RE_Closed [private]

Referenced by np().

boost::u32regex np::RE_DateNumPunct [private]

Referenced by np().

boost::u32regex np::RE_NounAdj [private]

Referenced by np().

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

Referenced by np().

---

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

• np.h
• np.cc