es.uam.eps.ir.ranksys.nn.item.sim

Class VectorJaccardItemSimilarity<I>

java.lang.Object

es.uam.eps.ir.ranksys.nn.item.sim.ItemSimilarity<I>

es.uam.eps.ir.ranksys.nn.item.sim.VectorJaccardItemSimilarity<I>

Type Parameters:

I - type of the items

All Implemented Interfaces:

ItemIndex<I>, FastItemIndex<I>, Similarity

public class VectorJaccardItemSimilarity<I>
extends ItemSimilarity<I>

Vector Jaccard item similarity. See VectorJaccardSimilarity.

Author:

Saúl Vargas (saul.vargas@uam.es)

Field Summary

Fields inherited from class es.uam.eps.ir.ranksys.nn.item.sim.ItemSimilarity

iIndex, sim

Constructor Summary

Constructors

Constructor and Description
VectorJaccardItemSimilarity(FastPreferenceData<?,I> data, boolean dense) Constructor.

Method Summary

Methods inherited from class es.uam.eps.ir.ranksys.nn.item.sim.ItemSimilarity

iidx2item, item2iidx, numItems, similarElems, similarItems, similarItems, similarity, similarity, similarity, similarity

Methods inherited from class java.lang.Object

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

Methods inherited from interface es.uam.eps.ir.ranksys.fast.index.FastItemIndex

containsItem, getAllIidx, getAllItems, iidx2item, iidx2item, item2iidx, item2iidx

Constructor Detail

VectorJaccardItemSimilarity

public VectorJaccardItemSimilarity(FastPreferenceData<?,I> data,
                                   boolean dense)

Constructor.

Parameters:

data - preference data

dense - true for array-based calculations, false to map-based