edu.stanford.nlp.trees.international.arabic

Class ArabicTreebankLanguagePack

java.lang.Object

edu.stanford.nlp.trees.AbstractTreebankLanguagePack

edu.stanford.nlp.trees.international.arabic.ArabicTreebankLanguagePack

All Implemented Interfaces:

TreebankLanguagePack, Serializable

public class ArabicTreebankLanguagePack
extends AbstractTreebankLanguagePack

Specifies the treebank/language specific components needed for parsing the Penn Arabic Treebank (ATB). This language pack has been updated for ATB1v4, ATB2v3, and ATB3v3.2

The encoding for the ATB is the default UTF-8 specified in AbstractTreebankLanguagePack.

Author:

Christopher Manning, Mona Diab, Roger Levy, Spence Green

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.stanford.nlp.trees.AbstractTreebankLanguagePack

DEFAULT_ENCODING, DEFAULT_GF_CHAR, gfCharacter

Constructor Summary

Constructors

Constructor and Description
ArabicTreebankLanguagePack()

Method Summary

Methods

Modifier and Type	Method and Description
String[]	evalBIgnoredPunctuationTags() Returns a String array of punctuation tags that EVALB-style evaluation should ignore for this treebank/language.
TokenizerFactory<? extends HasWord>	getTokenizerFactory() Return a tokenizer which might be suitable for tokenizing text that will be used with this Treebank/Language pair.
HeadFinder	headFinder() The HeadFinder to use for your treebank.
char[]	labelAnnotationIntroducingCharacters() Return an array of characters at which a String should be truncated to give the basic syntactic category of a label.
static void	main(String[] args)
MorphoFeatureSpecification	morphFeatureSpec() Returns a morphological feature specification for words in this language.
String[]	punctuationTags() Returns a String array of punctuation tags for this treebank/language.
String[]	punctuationWords() Returns a String array of punctuation words for this treebank/language.
String[]	sentenceFinalPunctuationTags() Returns a String array of sentence final punctuation tags for this treebank/language.
String[]	sentenceFinalPunctuationWords() Returns a String array of sentence final punctuation words for this treebank/language.
String[]	startSymbols() Returns a String array of treebank start symbols.
String	toString()
String	treebankFileExtension() Returns the extension of treebank files for this treebank.
TreeReaderFactory	treeReaderFactory() Returns a TreeReaderFactory suitable for general purpose use with this language/treebank.
HeadFinder	typedDependencyHeadFinder() The HeadFinder to use when making typed dependencies.

Methods inherited from class edu.stanford.nlp.trees.AbstractTreebankLanguagePack

basicCategory, categoryAndFunction, evalBIgnoredPunctuationTagAcceptFilter, evalBIgnoredPunctuationTagRejectFilter, getBasicCategoryFunction, getCategoryAndFunctionFunction, getEncoding, getGfCharacter, grammaticalStructureFactory, grammaticalStructureFactory, grammaticalStructureFactory, isEvalBIgnoredPunctuationTag, isLabelAnnotationIntroducingCharacter, isPunctuationTag, isPunctuationWord, isSentenceFinalPunctuationTag, isStartSymbol, punctuationTagAcceptFilter, punctuationTagRejectFilter, punctuationWordAcceptFilter, punctuationWordRejectFilter, sentenceFinalPunctuationTagAcceptFilter, setGfCharacter, startSymbol, startSymbolAcceptFilter, stripGF, supportsGrammaticalStructures, treeTokenizerFactory

Methods inherited from class java.lang.Object

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

Constructor Detail

ArabicTreebankLanguagePack

public ArabicTreebankLanguagePack()

Method Detail

punctuationTags

public String[] punctuationTags()

Returns a String array of punctuation tags for this treebank/language.

Specified by:

punctuationTags in interface TreebankLanguagePack

Specified by:

punctuationTags in class AbstractTreebankLanguagePack

Returns:

The punctuation tags

punctuationWords

public String[] punctuationWords()

Returns a String array of punctuation words for this treebank/language.

Specified by:

punctuationWords in interface TreebankLanguagePack

Specified by:

punctuationWords in class AbstractTreebankLanguagePack

Returns:

The punctuation words

sentenceFinalPunctuationTags

public String[] sentenceFinalPunctuationTags()

Returns a String array of sentence final punctuation tags for this treebank/language.

Specified by:

sentenceFinalPunctuationTags in interface TreebankLanguagePack

Specified by:

sentenceFinalPunctuationTags in class AbstractTreebankLanguagePack

Returns:

The sentence final punctuation tags

sentenceFinalPunctuationWords

public String[] sentenceFinalPunctuationWords()

Returns a String array of sentence final punctuation words for this treebank/language.

Returns:

The sentence final punctuation tags

evalBIgnoredPunctuationTags

public String[] evalBIgnoredPunctuationTags()

Returns a String array of punctuation tags that EVALB-style evaluation should ignore for this treebank/language. Traditionally, EVALB has ignored a subset of the total set of punctuation tags in the English Penn Treebank (quotes and period, comma, colon, etc., but not brackets)

Specified by:

evalBIgnoredPunctuationTags in interface TreebankLanguagePack

Overrides:

evalBIgnoredPunctuationTags in class AbstractTreebankLanguagePack

Returns:

Whether this is a EVALB-ignored punctuation tag

labelAnnotationIntroducingCharacters

public char[] labelAnnotationIntroducingCharacters()

Return an array of characters at which a String should be truncated to give the basic syntactic category of a label. The idea here is that Penn treebank style labels follow a syntactic category with various functional and crossreferencing information introduced by special characters (such as "NP-SBJ=1"). This would be truncated to "NP" by the array containing '-' and "=".

Specified by:

labelAnnotationIntroducingCharacters in interface TreebankLanguagePack

Overrides:

labelAnnotationIntroducingCharacters in class AbstractTreebankLanguagePack

Returns:

An array of characters that set off label name suffixes

startSymbols

public String[] startSymbols()

Returns a String array of treebank start symbols.

Specified by:

startSymbols in interface TreebankLanguagePack

Specified by:

startSymbols in class AbstractTreebankLanguagePack

Returns:

The start symbols

getTokenizerFactory

public TokenizerFactory<? extends HasWord> getTokenizerFactory()

Return a tokenizer which might be suitable for tokenizing text that will be used with this Treebank/Language pair. We tokenize the Arabic using the ArabicTokenizer class.

Specified by:

getTokenizerFactory in interface TreebankLanguagePack

Overrides:

getTokenizerFactory in class AbstractTreebankLanguagePack

Returns:

A tokenizer

treebankFileExtension

public String treebankFileExtension()

Returns the extension of treebank files for this treebank. This is "tree".

Returns:

the extension on files for this treebank

treeReaderFactory

public TreeReaderFactory treeReaderFactory()

Description copied from class: AbstractTreebankLanguagePack

Returns a TreeReaderFactory suitable for general purpose use with this language/treebank.

Specified by:

treeReaderFactory in interface TreebankLanguagePack

Overrides:

treeReaderFactory in class AbstractTreebankLanguagePack

Returns:

A TreeReaderFactory suitable for general purpose use with this language/treebank.

toString

public String toString()

Overrides:

toString in class Object

headFinder

public HeadFinder headFinder()

The HeadFinder to use for your treebank.

Returns:

A suitable HeadFinder

typedDependencyHeadFinder

public HeadFinder typedDependencyHeadFinder()

The HeadFinder to use when making typed dependencies.

Returns:

A suitable HeadFinder

morphFeatureSpec

public MorphoFeatureSpecification morphFeatureSpec()

Description copied from class: AbstractTreebankLanguagePack

Returns a morphological feature specification for words in this language.

Specified by:

morphFeatureSpec in interface TreebankLanguagePack

Overrides:

morphFeatureSpec in class AbstractTreebankLanguagePack

Returns:

A language-specific MorphoFeatureSpecification

main

public static void main(String[] args)

Parameters:

args -