Package es.uam.eps.ir.relison.links.recommendation.updateable.fast

Class FastUpdateableRankingRecommender<U,I>

java.lang.Object

es.uam.eps.ir.ranksys.rec.AbstractRecommender<U,I>

es.uam.eps.ir.relison.links.recommendation.updateable.fast.AbstractFastUpdateableRecommender<U,I>

es.uam.eps.ir.relison.links.recommendation.updateable.fast.FastUpdateableRankingRecommender<U,I>

All Implemented Interfaces:

es.uam.eps.ir.ranksys.core.index.ItemIndex<I>, es.uam.eps.ir.ranksys.core.index.UserIndex<U>, es.uam.eps.ir.ranksys.fast.index.FastItemIndex<I>, es.uam.eps.ir.ranksys.fast.index.FastUserIndex<U>, es.uam.eps.ir.ranksys.rec.fast.FastRecommender<U,I>, es.uam.eps.ir.ranksys.rec.Recommender<U,I>, FastUpdateableRecommender<U,I>, UpdateableRecommender<U,I>

Direct Known Subclasses:

UpdateableUBkNN

public abstract class FastUpdateableRankingRecommender<U,I>
extends AbstractFastUpdateableRecommender<U,I>

Fast updateable recommender that ranks the user. It can be updated over time.

Field Summary

Fields inherited from class es.uam.eps.ir.relison.links.recommendation.updateable.fast.AbstractFastUpdateableRecommender

prefData

Constructor Summary

Constructors

Constructor	Description
FastUpdateableRankingRecommender(FastUpdateablePreferenceData<U,I> prefData)	Constructor.

Method Summary

Modifier and Type	Method	Description
es.uam.eps.ir.ranksys.fast.FastRecommendation	getRecommendation(int uidx, int maxLength, java.util.function.IntPredicate filter)
abstract it.unimi.dsi.fastutil.ints.Int2DoubleMap	getScoresMap(int uidx)	Returns a map of item-score pairs.

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.updateable.fast.AbstractFastUpdateableRecommender

getRecommendation, getRecommendation, getRecommendation, getRecommendation, getRecommendation, getRecommendation, getRecommendation, iidx2item, item2iidx, numItems, numUsers, uidx2user, user2uidx

Methods inherited from class es.uam.eps.ir.ranksys.rec.AbstractRecommender

getRecommendation, getRecommendation

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

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

containsUser, getAllUidx, getAllUsers, uidx2user, uidx2user, user2uidx, user2uidx

Methods inherited from interface es.uam.eps.ir.ranksys.rec.Recommender

getRecommendation, getRecommendation

Methods inherited from interface es.uam.eps.ir.relison.links.recommendation.updateable.UpdateableRecommender

update, update, updateAddItem, updateAddUser, updateDelete, updateDelete

Constructor Details

FastUpdateableRankingRecommender

public FastUpdateableRankingRecommender(FastUpdateablePreferenceData<U,I> prefData)

Constructor.

Parameters:

prefData - the updateable preference data.

Method Details

getRecommendation

public es.uam.eps.ir.ranksys.fast.FastRecommendation getRecommendation(int uidx, int maxLength, java.util.function.IntPredicate filter)

Specified by:

getRecommendation in interface es.uam.eps.ir.ranksys.rec.fast.FastRecommender<U,I>

Specified by:

getRecommendation in class AbstractFastUpdateableRecommender<U,I>

getScoresMap

public abstract it.unimi.dsi.fastutil.ints.Int2DoubleMap getScoresMap(int uidx)

Returns a map of item-score pairs.

Parameters:

uidx - index of the user whose scores are predicted

Returns:

a map of item-score pairs