dragon.nlp.ontology

Class ChineseVocabulary

java.lang.Object

dragon.nlp.ontology.ChineseVocabulary

All Implemented Interfaces:

Vocabulary

public class ChineseVocabulary
extends Object
implements Vocabulary

Chinese Vocabulary

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Constructor Summary

Constructors

Constructor and Description
ChineseVocabulary(String vobFile)

Method Summary

Modifier and Type	Method and Description
Word	findPhrase(Word start) Finds out the phrase beging with the given word.
boolean	getAdjectivePhraseOption() Gets the option whether adjective phrase is allowed.
boolean	getCoordinateOption() Gets the option whether a phrase can contain a conjunction.
boolean	getLemmaOption() Gets the option of using the base form of the word when matching a phrase.
boolean	getNPPOption() Gets the option whether NPP phrase is allowed.
String	getPhrase(int index) Gets the index-th phrase in the vocabulary.
int	getPhraseIndex(long phraseUID)
int	getPhraseNum() Gets the number of phrases in the vocabulary.
long	getUID(String phrase)
boolean	isPhrase(String term) Tests if the term is a phrase
boolean	isPhrase(Word start, Word end) Tests if the term specified by the starting word and the ending word is a prhase.
boolean	isStartingWord(Word cur) Tests if the specified word could be the starting a word of a phrase.
int	maxPhraseLength() Gets the maximum number of words a phrase can contain.
int	minPhraseLength() Gets the minimum number of words a phrase can contain.
void	setAdjectivePhraseOption(boolean enabled) Sets the option whether adjective phrase is allowed.
void	setCoordinateOption(boolean enabled) Sets the option whether a phrase can contain a conjunction.
void	setLemmaOption(boolean enabled) Sets the option of using the base form of the word when matching a phrase.
void	setNPPOption(boolean enabled) Sets the option whether NPP phrase is allowed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChineseVocabulary

public ChineseVocabulary(String vobFile)

Method Detail

getPhraseIndex

public int getPhraseIndex(long phraseUID)

isPhrase

public boolean isPhrase(String term)

Description copied from interface: Vocabulary

Tests if the term is a phrase

Specified by:

isPhrase in interface Vocabulary

Parameters:

term - the term for testing

Returns:

true if the term is a phrase defined in the vocabulary

isPhrase

public boolean isPhrase(Word start,
                        Word end)

Description copied from interface: Vocabulary

Tests if the term specified by the starting word and the ending word is a prhase.

Specified by:

isPhrase in interface Vocabulary

Parameters:

start - the starting word of the phrase

end - the ending word of the phrase

Returns:

true if the term is a phrase defined in the vocabulary

isStartingWord

public boolean isStartingWord(Word cur)

Description copied from interface: Vocabulary

Tests if the specified word could be the starting a word of a phrase.

Specified by:

isStartingWord in interface Vocabulary

Parameters:

cur - the current word for testing

Returns:

true if the current word could be the starting a word of a phrase

findPhrase

public Word findPhrase(Word start)

Description copied from interface: Vocabulary

Finds out the phrase beging with the given word.

Specified by:

findPhrase in interface Vocabulary

Parameters:

start - the starting word

Returns:

the ending word if a phrase is matched; otherwise null.

getPhraseNum

public int getPhraseNum()

Description copied from interface: Vocabulary

Gets the number of phrases in the vocabulary.

Specified by:

getPhraseNum in interface Vocabulary

Returns:

the number of phrases in the vocabulary.

getPhrase

public String getPhrase(int index)

Description copied from interface: Vocabulary

Gets the index-th phrase in the vocabulary.

Specified by:

getPhrase in interface Vocabulary

Parameters:

index - the position of the phrase in the vocabulary

Returns:

the phrase in the given position of the vocabulary.

maxPhraseLength

public int maxPhraseLength()

Description copied from interface: Vocabulary

Gets the maximum number of words a phrase can contain.

Specified by:

maxPhraseLength in interface Vocabulary

Returns:

the maximum number of words a phrase can contain.

minPhraseLength

public int minPhraseLength()

Description copied from interface: Vocabulary

Gets the minimum number of words a phrase can contain.

Specified by:

minPhraseLength in interface Vocabulary

Returns:

the minimum number of words a phrase can contain.

setAdjectivePhraseOption

public void setAdjectivePhraseOption(boolean enabled)

Description copied from interface: Vocabulary

Sets the option whether adjective phrase is allowed.

Specified by:

setAdjectivePhraseOption in interface Vocabulary

Parameters:

enabled - whether adjective phrase is allowed.

getAdjectivePhraseOption

public boolean getAdjectivePhraseOption()

Description copied from interface: Vocabulary

Gets the option whether adjective phrase is allowed.

Specified by:

getAdjectivePhraseOption in interface Vocabulary

Returns:

true if adjective phrase is allowed.

setNPPOption

public void setNPPOption(boolean enabled)

Description copied from interface: Vocabulary

Sets the option whether NPP phrase is allowed. For example, "bank of america" is a NPP phrase

Specified by:

setNPPOption in interface Vocabulary

Parameters:

enabled - the option whether NPP phrase is allowed.

getNPPOption

public boolean getNPPOption()

Description copied from interface: Vocabulary

Gets the option whether NPP phrase is allowed.

Specified by:

getNPPOption in interface Vocabulary

Returns:

true if NPP phrase is allowed.

setCoordinateOption

public void setCoordinateOption(boolean enabled)

Description copied from interface: Vocabulary

Sets the option whether a phrase can contain a conjunction. For example, the phrase "the cancer of neck and hand" contains a conjunction.

Specified by:

setCoordinateOption in interface Vocabulary

Parameters:

enabled - the option whether a phrase can contain a conjunction

getCoordinateOption

public boolean getCoordinateOption()

Description copied from interface: Vocabulary

Gets the option whether a phrase can contain a conjunction.

Specified by:

getCoordinateOption in interface Vocabulary

Returns:

true if a phrase can contain a conjunction.

setLemmaOption

public void setLemmaOption(boolean enabled)

Description copied from interface: Vocabulary

Sets the option of using the base form of the word when matching a phrase.

Specified by:

setLemmaOption in interface Vocabulary

Parameters:

enabled - the option of using the base form of the word when matching a phrase.

getLemmaOption

public boolean getLemmaOption()

Description copied from interface: Vocabulary

Gets the option of using the base form of the word when matching a phrase.

Specified by:

getLemmaOption in interface Vocabulary

Returns:

true if the base form of words is used when matching a phrase.

getUID

public long getUID(String phrase)