net.librec.similarity

Class DiceCoefficientSimilarity

java.lang.Object

net.librec.similarity.AbstractRecommenderSimilarity

net.librec.similarity.DiceCoefficientSimilarity

All Implemented Interfaces:

RecommenderSimilarity

public class DiceCoefficientSimilarity
extends AbstractRecommenderSimilarity

Dice Coefficient Similarity

Author:

zhanghaidong

Field Summary

Fields inherited from class net.librec.similarity.AbstractRecommenderSimilarity

conf, similarityMatrix

Constructor Summary

Constructors

Constructor and Description
DiceCoefficientSimilarity()

Method Summary

Methods

Modifier and Type	Method and Description
protected double	getSimilarity(java.util.List<? extends java.lang.Number> thisList, java.util.List<? extends java.lang.Number> thatList) Calculate the similarity between thisList and thatList.

Methods inherited from class net.librec.similarity.AbstractRecommenderSimilarity

buildSimilarityMatrix, buildSocialSimilarityMatrix, getCorrelation, getSimilarityMatrix

Methods inherited from class java.lang.Object

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

Constructor Detail

DiceCoefficientSimilarity

public DiceCoefficientSimilarity()

Method Detail

getSimilarity

protected double getSimilarity(java.util.List<? extends java.lang.Number> thisList,
                   java.util.List<? extends java.lang.Number> thatList)

Calculate the similarity between thisList and thatList.

Specified by:

getSimilarity in class AbstractRecommenderSimilarity

Parameters:

thisList - this list

thatList - that list

Returns:

similarity