aima.core.nlp.parsing

Class Lexicon

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<java.lang.String,java.util.ArrayList<LexWord>>

aima.core.nlp.parsing.Lexicon

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.String,java.util.ArrayList<LexWord>>

public class Lexicon
extends java.util.HashMap<java.lang.String,java.util.ArrayList<LexWord>>

The Lexicon Object appears on pg. 891 of the text and defines a simple set of words for a certain language category and their associated probabilities. Defining and using a lexicon saves us from listing out a large number of rules to derive terminal strings in a grammar.

Author:

Jonathon

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
Lexicon()

Method Summary

Modifier and Type	Method and Description
boolean	addEntry(java.lang.String category, java.lang.String word, float prob)
void	addLexWords(Lexicon l) Add words to an lexicon from an existing lexicon.
boolean	addLexWords(java.lang.String... vargs)
java.util.ArrayList<Rule>	getAllTerminalRules()
java.util.ArrayList<Rule>	getTerminalRules(java.lang.String partOfSpeech)

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

Lexicon

public Lexicon()

Method Detail

getTerminalRules

public java.util.ArrayList<Rule> getTerminalRules(java.lang.String partOfSpeech)

getAllTerminalRules

public java.util.ArrayList<Rule> getAllTerminalRules()

addEntry

public boolean addEntry(java.lang.String category,
                        java.lang.String word,
                        float prob)

addLexWords

public boolean addLexWords(java.lang.String... vargs)

addLexWords

public void addLexWords(Lexicon l)

Add words to an lexicon from an existing lexicon. Using this you can combine lexicons.

Parameters:

l -