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

Class SetJaccardItemSimilarity<I>

java.lang.Object

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

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

Type Parameters:

I - type of the items

All Implemented Interfaces:

ItemIndex<I>, FastItemIndex<I>, Similarity

public class SetJaccardItemSimilarity<I>
extends ItemSimilarity<I>

Set Jaccard item similarity. See SetJaccardSimilarity.

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
SetJaccardItemSimilarity(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

SetJaccardItemSimilarity

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

Constructor.

Parameters:

data - preference data

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