edu.stanford.nlp.parser.lexparser
Class ArabicTreebankParserParams

java.lang.Object
  edu.stanford.nlp.parser.lexparser.AbstractTreebankParserParams
      edu.stanford.nlp.parser.lexparser.ArabicTreebankParserParams

All Implemented Interfaces:

TreebankLangParserParams, TreebankFactory, java.io.Serializable

public class ArabicTreebankParserParams
extends AbstractTreebankParserParams

A TreebankLangParserParams implementing class for the Penn Arabic Treebank. The baseline feature set works with either UTF-8 or Buckwalter input, although the behavior of some unused features depends on the input encoding.

Author:

Roger Levy, Christopher Manning, Spence Green

See Also:

Serialized Form

Nested Class Summary

protected class

ArabicTreebankParserParams.ArabicSubcategoryStripper

Nested classes/interfaces inherited from class edu.stanford.nlp.parser.lexparser.AbstractTreebankParserParams

AbstractTreebankParserParams.AnnotatePunctuationFunction, AbstractTreebankParserParams.RemoveGFSubcategoryStripper, AbstractTreebankParserParams.SubcategoryStripper

Field Summary

Fields inherited from class edu.stanford.nlp.parser.lexparser.AbstractTreebankParserParams

evalGF, inputEncoding, outputEncoding, tlp

Constructor Summary

ArabicTreebankParserParams()

Method Summary

TreeTransformer	collinizer() The collinizer eliminates punctuation
TreeTransformer	collinizerEvalb() Stand-in collinizer does nothing to the tree.
java.util.List<? extends HasWord>	defaultTestSentence() Return a default sentence for the language (for testing).
DiskTreebank	diskTreebank() returns a DiskTreebank appropriate to the treebank source
void	display() display language-specific settings
HeadFinder	headFinder() The HeadFinder to use for your treebank.
Lexicon	lex(Options op, Index<java.lang.String> wordIndex, Index<java.lang.String> tagIndex) Returns a lexicon for Arabic.
static void	main(java.lang.String[] args)
MemoryTreebank	memoryTreebank() returns a MemoryTreebank appropriate to the treebank source
int	setOptionFlag(java.lang.String[] args, int i) Some options for setOptionFlag:
java.lang.String[]	sisterSplitters() Returns the splitting strings used for selective splits.
TreeTransformer	subcategoryStripper() Returns a TreeTransformer that retains categories according to the following options supported by setOptionFlag:
Tree	transformTree(Tree t, Tree root) This method does language-specific tree transformations such as annotating particular nodes with language-relevant features.
TreeReaderFactory	treeReaderFactory() Creates an ArabicTreeReaderFactory with parameters set via options passed in from the command line.
HeadFinder	typedDependencyHeadFinder() The HeadFinder to use when extracting typed dependencies.

Methods inherited from class edu.stanford.nlp.parser.lexparser.AbstractTreebankParserParams

dependencyGrammarExtractor, dependencyObjectify, getGrammaticalStructure, getInputEncoding, getOutputEncoding, isEvalGF, MLEDependencyGrammarSmoothingParams, parsevalObjectify, parsevalObjectify, ppAttachmentEval, processHeadWord, pw, pw, readGrammaticalStructureFromFile, setEvalGF, setEvaluateGrammaticalFunctions, setInputEncoding, setOutputEncoding, setupForEval, testMemoryTreebank, treebank, treebankLanguagePack, treeTokenizerFactory, typedDependencyClasser, typedDependencyObjectify, unorderedTypedDependencyObjectify, unorderedUntypedDependencyObjectify, untypedDependencyObjectify

Methods inherited from class java.lang.Object

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

Constructor Detail

ArabicTreebankParserParams

public ArabicTreebankParserParams()

Method Detail

treeReaderFactory

public TreeReaderFactory treeReaderFactory()

Creates an ArabicTreeReaderFactory with parameters set via options passed in from the command line.

Returns:

An ArabicTreeReaderFactory

memoryTreebank

public MemoryTreebank memoryTreebank()

Description copied from class: AbstractTreebankParserParams

returns a MemoryTreebank appropriate to the treebank source

Specified by:

memoryTreebank in interface TreebankLangParserParams

Specified by:

memoryTreebank in class AbstractTreebankParserParams

diskTreebank

public DiskTreebank diskTreebank()

Description copied from class: AbstractTreebankParserParams

returns a DiskTreebank appropriate to the treebank source

Specified by:

diskTreebank in interface TreebankLangParserParams

Specified by:

diskTreebank in class AbstractTreebankParserParams

headFinder

public HeadFinder headFinder()

Description copied from class: AbstractTreebankParserParams

The HeadFinder to use for your treebank.

Specified by:

headFinder in interface TreebankLangParserParams

Specified by:

headFinder in class AbstractTreebankParserParams

typedDependencyHeadFinder

public HeadFinder typedDependencyHeadFinder()

Description copied from class: AbstractTreebankParserParams

The HeadFinder to use when extracting typed dependencies.

Specified by:

typedDependencyHeadFinder in interface TreebankLangParserParams

Specified by:

typedDependencyHeadFinder in class AbstractTreebankParserParams

lex

public Lexicon lex(Options op,
                   Index<java.lang.String> wordIndex,
                   Index<java.lang.String> tagIndex)

Returns a lexicon for Arabic. At the moment this is just a BaseLexicon.

Specified by:

lex in interface TreebankLangParserParams

Overrides:

lex in class AbstractTreebankParserParams

Parameters:

op - Lexicon options

Returns:

A Lexicon

defaultTestSentence

public java.util.List<? extends HasWord> defaultTestSentence()

Return a default sentence for the language (for testing). The example is in UTF-8.

Returns:

A default sentence of the language

subcategoryStripper

public TreeTransformer subcategoryStripper()

Returns a TreeTransformer that retains categories according to the following options supported by setOptionFlag:

-retainNPTmp Retain temporal NP marking on NPs. -retainNPSbj Retain NP subject function tags -markPRDverbs Retain PRD verbs.

Specified by:

subcategoryStripper in interface TreebankLangParserParams

Overrides:

subcategoryStripper in class AbstractTreebankParserParams

collinizer

public TreeTransformer collinizer()

The collinizer eliminates punctuation

Specified by:

collinizer in interface TreebankLangParserParams

Specified by:

collinizer in class AbstractTreebankParserParams

Returns:

A TreeTransformer that performs adjustments to trees to delete or equivalence class things not evaluated in the parser performance evaluation.

collinizerEvalb

public TreeTransformer collinizerEvalb()

Stand-in collinizer does nothing to the tree.

Specified by:

collinizerEvalb in interface TreebankLangParserParams

Specified by:

collinizerEvalb in class AbstractTreebankParserParams

sisterSplitters

public java.lang.String[] sisterSplitters()

Description copied from class: AbstractTreebankParserParams

Returns the splitting strings used for selective splits.

Specified by:

sisterSplitters in interface TreebankLangParserParams

Specified by:

sisterSplitters in class AbstractTreebankParserParams

Returns:

An array containing ancestor-annotated Strings: categories should be split according to these ancestor annotations.

transformTree

public Tree transformTree(Tree t,
                          Tree root)

Description copied from class: AbstractTreebankParserParams

This method does language-specific tree transformations such as annotating particular nodes with language-relevant features. Such parameterizations should be inside the specific TreebankLangParserParams class. This method is recursively applied to each node in the tree (depth first, left-to-right), so you shouldn't write this method to apply recursively to tree members. This method is allowed to (and in some cases does) destructively change the input tree t. It changes both labels and the tree shape.

Specified by:

transformTree in interface TreebankLangParserParams

Specified by:

transformTree in class AbstractTreebankParserParams

Parameters:

t - The input tree (with non-language specific annotation already done, so you need to strip back to basic categories)

root - The root of the current tree (can be null for words)

Returns:

The fully annotated tree node (with daughters still as you want them in the final result)

display

public void display()

Description copied from class: AbstractTreebankParserParams

display language-specific settings

Specified by:

display in interface TreebankLangParserParams

Specified by:

display in class AbstractTreebankParserParams

setOptionFlag

public int setOptionFlag(java.lang.String[] args,
                         int i)

Some options for setOptionFlag:

-retainNPTmp Retain temporal NP marking on NPs. -retainNPSbj Retain NP subject function tags -markGappedVP marked gapped VPs. -collinizerRetainsPunctuation does what it says.

Specified by:

setOptionFlag in interface TreebankLangParserParams

Overrides:

setOptionFlag in class AbstractTreebankParserParams

Parameters:

args - flag arguments (usually from commmand line

i - index at which to begin argument processing

Returns:

Index in args array after the last processed index for option

main

public static void main(java.lang.String[] args)

Parameters:

args -