Package affective.core

Class NRCHashtagEmotionLexiconEvaluator

java.lang.Object

affective.core.LexiconEvaluator

affective.core.NRCHashtagEmotionLexiconEvaluator

All Implemented Interfaces:

java.io.Serializable

public class NRCHashtagEmotionLexiconEvaluator
extends LexiconEvaluator

This class is used for evaluating the NRC Hashtag Emotion Lexicon.

Version:

$Revision: 1 $

Author:

Felipe Bravo-Marquez (fbravoma@waikato.ac.nz)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
NRCHashtagEmotionLexiconEvaluator(java.lang.String path, java.lang.String name)	initializes the Object

Method Summary

Modifier and Type	Method	Description
java.util.Map<java.lang.String,java.lang.Double>	evaluateTweet(java.util.List<java.lang.String> words)	Calculates lexicon-based feature values from a list of tokens
java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.lang.Double>>	getDict()	Gets the dictionary mapping the words to their emotion associations
java.util.Map<java.lang.String,java.lang.Double>	getWord(java.lang.String word)	Gets the emotions for a word
void	processDict()	initializes the dictionary

Methods inherited from class affective.core.LexiconEvaluator

getFeatureNames

Methods inherited from class java.lang.Object

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

Constructor Detail

NRCHashtagEmotionLexiconEvaluator

public NRCHashtagEmotionLexiconEvaluator(java.lang.String path,
                                         java.lang.String name)

initializes the Object

Parameters:

path - the file with the lexicon

name - the prefix for all the attributes calculated from this lexicon

Method Detail

getDict

public java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.lang.Double>> getDict()

Gets the dictionary mapping the words to their emotion associations

Returns:

the dictionary.

getWord

public java.util.Map<java.lang.String,java.lang.Double> getWord(java.lang.String word)

Gets the emotions for a word

Parameters:

word - the word

Returns:

the emotions

processDict

public void processDict()
                 throws java.io.IOException

Description copied from class: LexiconEvaluator

initializes the dictionary

Specified by:

processDict in class LexiconEvaluator

Throws:

java.io.IOException - in case of wrong file

evaluateTweet

public java.util.Map<java.lang.String,java.lang.Double> evaluateTweet(java.util.List<java.lang.String> words)

Description copied from class: LexiconEvaluator

Calculates lexicon-based feature values from a list of tokens

Specified by:

evaluateTweet in class LexiconEvaluator

Parameters:

words - a tokenized tweet

Returns:

a mapping between attribute names and their scores