edu.nyu.jet.ne

Class Dictionary

java.lang.Object

edu.nyu.jet.ne.Dictionary

Direct Known Subclasses:

OnMemoryDictionary, TrieDictionary

public abstract class Dictionary
extends Object

a dictionary used by the Extended Named Entity tagger.

Author:

Akira Oda

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Dictionary.Entry

Constructor Summary

Constructors

Constructor and Description
Dictionary()

Method Summary

Methods

Modifier and Type	Method and Description
abstract Dictionary.Entry	lookup(int pos) look for a dictionary entry matching the token sequence beginning at token pos.
Dictionary.Entry	lookup(String[] tokens, int pos) look for a dictionary entry matching the token sequence beginning at position pos of token sequence tokens.
abstract void	lookupStart(String[] tokens) initializes the dictionary look-up process for the text consisting of tokens tokens.

Methods inherited from class java.lang.Object

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

Constructor Detail

Dictionary

public Dictionary()

Method Detail

lookupStart

public abstract void lookupStart(String[] tokens)

initializes the dictionary look-up process for the text consisting of tokens tokens.

lookup

public abstract Dictionary.Entry lookup(int pos)

look for a dictionary entry matching the token sequence beginning at token pos.

Parameters:

pos - the position within the token array passed to lookupStart

Returns:

the longest dictionary entry matching the token sequence, or null if no entry matches

lookup

public Dictionary.Entry lookup(String[] tokens,
                      int pos)

look for a dictionary entry matching the token sequence beginning at position pos of token sequence tokens.

Returns:

the longest dictionary entry matching the token sequence, or null if no entry matches