edu.stanford.nlp.international.arabic.pipeline

Class GaleP4LexMapper

java.lang.Object

edu.stanford.nlp.international.arabic.pipeline.GaleP4LexMapper

All Implemented Interfaces:

Mapper

public class GaleP4LexMapper
extends java.lang.Object
implements Mapper

Applies a default set of lexical transformations that have been empirically validated in various Arabic tasks. This class automatically detects the input encoding and applies the appropriate set of transformations.

Author:

Spence Green

Constructor Summary

Constructors

Constructor and Description
GaleP4LexMapper()

Method Summary

Modifier and Type	Method and Description
boolean	canChangeEncoding(java.lang.String parent, java.lang.String element) Indicates whether child can be converted to another encoding.
java.lang.String	map(java.lang.String parent, java.lang.String element) Maps from one string representation to another.
void	setup(java.io.File path, java.lang.String... options) Perform initialization prior to the first call to map.

Methods inherited from class java.lang.Object

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

Constructor Detail

GaleP4LexMapper

public GaleP4LexMapper()

Method Detail

map

public java.lang.String map(java.lang.String parent,
                            java.lang.String element)

Description copied from interface: Mapper

Maps from one string representation to another.

Specified by:

map in interface Mapper

Parameters:

parent - element's context (e.g., the parent node in a parse tree)

element - The string to be transformed.

Returns:

The transformed string

setup

public void setup(java.io.File path,
                  java.lang.String... options)

Description copied from interface: Mapper

Perform initialization prior to the first call to map.

Specified by:

setup in interface Mapper

Parameters:

path - A filename for data on disk used during mapping

options - Variable length array of strings for options. Option format may vary for the particular class instance.

canChangeEncoding

public boolean canChangeEncoding(java.lang.String parent,
                                 java.lang.String element)

Description copied from interface: Mapper

Indicates whether child can be converted to another encoding. In the ATB, for example, if a punctuation character is labeled with the "PUNC" POS tag, then that character should not be converted from Buckwalter to UTF-8.

Specified by:

canChangeEncoding in interface Mapper

Parameters:

parent - element's context (e.g., the parent node in a parse tree)

element - The string to be transformed.

Returns:

True if the string encoding can be changed. False otherwise.