ZGen::ShiftReduce::StateItem Class Reference

#include <state.h>

Public Member Functions
	StateItem ()
	StateItem (const dependency_t *ref)
void	set_reference (const dependency_t *_ref)
void	clear ()
StateItem &	operator= (const StateItem &item)
	assign operator More...
bool	operator< (const StateItem &other) const
	less than operator More...
bool	operator> (const StateItem &other) const
	greater than operator More...
void	copy (const StateItem &other)
bool	shift (postag_t postag, word_t word, int word_id)
bool	shift (postag_t postag, word_t word, int word_id, StateItem *other) const
bool	left_arc (deprel_t deprel)
bool	left_arc (deprel_t deprel, StateItem *other) const
bool	right_arc (deprel_t deprel)
bool	right_arc (deprel_t deprel, StateItem *other) const

Public Attributes
int	top0
int	top1
	The top word in the stack of the current state. More...
const dependency_t *	ref
	The second top word. More...
const StateItem *	previous
	The reference to the sentence. More...
floatval_t	score
	The previous state. More...
std::vector< int >	stack
	The score for the current state. More...
std::vector< word_t >	word_sequence
	The sequence of words leading by the current state. More...
std::vector< postag_t >	postag_sequence
	The sequence of postags leading by the current state. More...
std::bitset< kMaxNumberOfWords >	buffer
	The word indices in buffer for current state. More...
int	rank [kMaxNumberOfWords]
	The rank of the form, with word considered. More...
int	postags [kMaxNumberOfWords]
	The postags cache. More...
int	heads [kMaxNumberOfWords]
	The tree(heads) for the current status. More...
int	deprels [kMaxNumberOfWords]
	The tree(deprels) for the current state. More...
int	nr_left_children [kMaxNumberOfWords]
	The number of left children. More...
int	nr_right_children [kMaxNumberOfWords]
	The number of right children. More...
int	nr_left_descendant [kMaxNumberOfWords]
	The sum of left descendants. More...
int	nr_right_descendant [kMaxNumberOfWords]
	The sum of right descendants. More...
int	left_most_child [kMaxNumberOfWords]
	CACHE: use to store the left most child for the word. More...
int	right_most_child [kMaxNumberOfWords]
	CACHE: use to store the right most child for the word. More...
int	left_2nd_most_child [kMaxNumberOfWords]
	CACHE: use to store the 2nd-left-most child. More...
int	right_2nd_most_child [kMaxNumberOfWords]
	CACHE: use to store the 2nd-right-most child. More...
action_t	last_action
	The action that result in the current state. More...

Friends
std::ostream &	operator<< (std::ostream &os, const StateItem &item)

Constructor & Destructor Documentation

ZGen::ShiftReduce::StateItem::StateItem

(

)

ZGen::ShiftReduce::StateItem::StateItem

(

const dependency_t *

ref

)

Member Function Documentation

void ZGen::ShiftReduce::StateItem::clear

(

)

Clear the state item.

void ZGen::ShiftReduce::StateItem::copy

(

const StateItem &

other

)

Copy other state into the current state.

Parameters

[in]

other

The other state.

bool ZGen::ShiftReduce::StateItem::left_arc

(

deprel_t

deprel

)

Perform left arc on current state, result in a new state on itself.

Parameters

[in]

deprel

The dependency relation.

Returns

bool If successfully performed action, return true; Otherwise false.

bool ZGen::ShiftReduce::StateItem::left_arc	(	deprel_t	deprel,
		StateItem *	other
	)		const

An output wrapper for left arc by performing left arc and result in a new state.

bool ZGen::ShiftReduce::StateItem::operator<

(

const StateItem &

other

)

const

less than operator

StateItem & ZGen::ShiftReduce::StateItem::operator=

(

const StateItem &

item

)

assign operator

bool ZGen::ShiftReduce::StateItem::operator>

(

const StateItem &

other

)

const

greater than operator

bool ZGen::ShiftReduce::StateItem::right_arc

(

deprel_t

deprel

)

Perform right arc on current state, result in a new state on itself.

Parameters

[in]

deprel

The dependency relation.

Returns

bool If successfully performed action, return true; Otherwise false.

bool ZGen::ShiftReduce::StateItem::right_arc	(	deprel_t	deprel,
		StateItem *	other
	)		const

An output wrapper for right arc by performing left arc and result in a new state.

void ZGen::ShiftReduce::StateItem::set_reference

(

const dependency_t *

_ref

)

Set the sentence reference to the current StateItem, it won't check whether the reference is seted.

Parameters

[in]

_ref

The pointer to the sentence

bool ZGen::ShiftReduce::StateItem::shift	(	postag_t	postag,
		word_t	word,
		int	word_id
	)

Perform shift on current state, result in a new state on itself.

Parameters

[in]	postag	The PoSTag (represented in integer).
[in]	word	The word (represented in integer).
[in]	word_id	The index of the word in this sentence.

Returns

bool If successfully shift, return true. otherwise false.

bool ZGen::ShiftReduce::StateItem::shift	(	postag_t	postag,
		word_t	word,
		int	word_id,
		StateItem *	other
	)		const

Perform shift on current state and result in a new state.

Parameters

[in]	postag	The PoSTag (represented in integer).
[in]	word	The word (represented in integer).
[in]	word_id	The index of the word in this sentence.
[out]	other	The pointer to the output state.

Returns

bool If successfully shift, return true, otherwise false

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  os, const StateItem &  item  )

friend

Member Data Documentation

std::bitset<kMaxNumberOfWords> ZGen::ShiftReduce::StateItem::buffer

The word indices in buffer for current state.

int ZGen::ShiftReduce::StateItem::deprels[kMaxNumberOfWords]

The tree(deprels) for the current state.

int ZGen::ShiftReduce::StateItem::heads[kMaxNumberOfWords]

The tree(heads) for the current status.

action_t ZGen::ShiftReduce::StateItem::last_action

The action that result in the current state.

int ZGen::ShiftReduce::StateItem::left_2nd_most_child[kMaxNumberOfWords]

CACHE: use to store the 2nd-left-most child.

int ZGen::ShiftReduce::StateItem::left_most_child[kMaxNumberOfWords]

CACHE: use to store the left most child for the word.

int ZGen::ShiftReduce::StateItem::nr_left_children[kMaxNumberOfWords]

The number of left children.

int ZGen::ShiftReduce::StateItem::nr_left_descendant[kMaxNumberOfWords]

The sum of left descendants.

int ZGen::ShiftReduce::StateItem::nr_right_children[kMaxNumberOfWords]

The number of right children.

int ZGen::ShiftReduce::StateItem::nr_right_descendant[kMaxNumberOfWords]

The sum of right descendants.

std::vector< postag_t > ZGen::ShiftReduce::StateItem::postag_sequence

The sequence of postags leading by the current state.

int ZGen::ShiftReduce::StateItem::postags[kMaxNumberOfWords]

The postags cache.

const StateItem* ZGen::ShiftReduce::StateItem::previous

The reference to the sentence.

int ZGen::ShiftReduce::StateItem::rank[kMaxNumberOfWords]

The rank of the form, with word considered.

const dependency_t* ZGen::ShiftReduce::StateItem::ref

The second top word.

int ZGen::ShiftReduce::StateItem::right_2nd_most_child[kMaxNumberOfWords]

CACHE: use to store the 2nd-right-most child.

int ZGen::ShiftReduce::StateItem::right_most_child[kMaxNumberOfWords]

CACHE: use to store the right most child for the word.

floatval_t ZGen::ShiftReduce::StateItem::score

The previous state.

std::vector<int> ZGen::ShiftReduce::StateItem::stack

The score for the current state.

The stack for the current state

int ZGen::ShiftReduce::StateItem::top0

int ZGen::ShiftReduce::StateItem::top1

The top word in the stack of the current state.

std::vector< word_t > ZGen::ShiftReduce::StateItem::word_sequence

The sequence of words leading by the current state.

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

• src/shiftreduce/types/state.h
• src/shiftreduce/types/state.cc