Uses of Class
es.upm.etsisi.cf4j.data.Item

Packages that use Item

Package	Description
es.upm.etsisi.cf4j.data	This package contains data classes of CF4J.
es.upm.etsisi.cf4j.recommender.knn.itemSimilarityMetric	This package contains different implementations of item-to-item similarity metrics used in the item-to-item knn based collaborative filtering algorithm.

Uses of Item in es.upm.etsisi.cf4j.data

Subclasses of Item in es.upm.etsisi.cf4j.data

Modifier and Type	Class and Description
class	TestItem A TestItem extends an Item given it the following properties: Index in the DataModel array which stores test items.

Methods in es.upm.etsisi.cf4j.data that return Item

Modifier and Type	Method and Description
Item	DataModel.getItem(int itemIndex) Gets an Item by its index.
Item[]	DataModel.getItems() Gets the array of Items.

Uses of Item in es.upm.etsisi.cf4j.recommender.knn.itemSimilarityMetric

Methods in es.upm.etsisi.cf4j.recommender.knn.itemSimilarityMetric with parameters of type Item

Modifier and Type	Method and Description
void	ItemSimilarityMetric.run(Item item)
double	AdjustedCosine.similarity(Item item, Item otherItem)
double	Correlation.similarity(Item item, Item otherItem)
double	CorrelationConstrained.similarity(Item item, Item otherItem)
double	Cosine.similarity(Item item, Item otherItem)
abstract double	ItemSimilarityMetric.similarity(Item item, Item otherItem) This method must returns the similarity between two items.
double	Jaccard.similarity(Item item, Item otherItem)
double	JMSD.similarity(Item item, Item otherItem)
double	MSD.similarity(Item item, Item otherItem)
double	PIP.similarity(Item item, Item otherItem)
double	Singularities.similarity(Item item, Item otherItem)
double	SpearmanRank.similarity(Item item, Item otherItem)