Parser::EventStream Class Reference

Creates a stream of Classifier::Event's from an annotated dependency corpus. More...

#include <EventStream.h>

Inheritance diagram for Parser::EventStream:

Collaboration diagram for Parser::EventStream:

List of all members.

Public Member Functions
	EventStream (SentenceReader *reader, GlobalInfo *info, int sentenceCutoff=INT_MAX)
	Constructor.
bool	hasNext ()
Tanl::Classifier::Event *	next ()
	Generate the next training event and perform parse action.
void	reset ()
	Restart.
bool	EoS ()
	Tells whether it is the end of a sentence.
std::string &	splitFeature ()
Public Attributes
SentenceReader *	reader
	used to read sentences
TrainState *	state
	parser state
GlobalInfo *	info
	collected information
int	sentenceCutoff
	Max number of sentence to read.
int	sentenceCount
	Sentence read so far.

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Detailed Description

Creates a stream of Classifier::Event's from an annotated dependency corpus.

Definition at line 36 of file EventStream.h.

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Constructor & Destructor Documentation

Parser::EventStream::EventStream	(	SentenceReader *	reader,
		GlobalInfo *	info,
		int	sentenceCutoff = INT_MAX
	)			[inline]

Constructor.

Parameters:

	reader	the SentenceReader for a Dependency Grammar Corpus.
	info	where to store information collected from sentences.
	sentenceCutoff	max number of sentences to read. Default INT_MAX.

Definition at line 46 of file EventStream.h.

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Member Function Documentation

bool Parser::EventStream::EoS

(

)

[inline]

Tells whether it is the end of a sentence.

Definition at line 73 of file EventStream.h.

References Parser::TrainState::hasNext(), and state.

bool Parser::EventStream::hasNext

(

)

[virtual]

Returns:

true if there are other events.

Implements Parser::Iterator< Tanl::Classifier::Event * >.

Definition at line 32 of file EventStream.cpp.

References Parser::TrainState::hasNext(), info, reader, sentenceCount, sentenceCutoff, and state.

Referenced by Parser::MultiSvmParser::train(), and Parser::ApParser::train().

Tanl::Classifier::Event * Parser::EventStream::next

(

)

[virtual]

Generate the next training event and perform parse action.

Returns:

next event from stream, and perform corresponding action.

The event outcome is the next action from actions, the context is generated from the past tokens (on the stack) and later tokens in the sentence (from input).

Returns:

the next training event.

Implements Parser::Iterator< Tanl::Classifier::Event * >.

Definition at line 55 of file EventStream.cpp.

References Parser::TrainState::next(), state, and Parser::State::transition().

Referenced by Parser::MultiSvmParser::train(), and Parser::ApParser::train().

std::string& Parser::EventStream::splitFeature

(

)

[inline]

Returns:

the feature indicated for splitting the model

Definition at line 80 of file EventStream.h.

References Parser::State::splitFeature, and state.

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

• src/EventStream.h
• src/EventStream.cpp