es.uam.eps.ir.ranksys.novelty.inverted.neighborhood

Class InvertedUserNeighborhood<U>

java.lang.Object

es.uam.eps.ir.ranksys.nn.user.neighborhood.UserNeighborhood<U>

es.uam.eps.ir.ranksys.novelty.inverted.neighborhood.InvertedUserNeighborhood<U>

Type Parameters:

U - type of the users

All Implemented Interfaces:

UserIndex<U>, FastUserIndex<U>, Neighborhood

public class InvertedUserNeighborhood<U>
extends UserNeighborhood<U>

Inverted user neighborhood. See InvertedNeighborhood S. Vargas and P. Castells. Improving sales diversity by recommending users to items.

Author:

Saúl Vargas (saul.vargas@uam.es)

Field Summary

Fields inherited from class es.uam.eps.ir.ranksys.nn.user.neighborhood.UserNeighborhood

neighborhood, uIndex

Constructor Summary

Constructors

Constructor and Description
InvertedUserNeighborhood(UserNeighborhood<U> neighborhood, IntPredicate filter) Constructor - fast version.
InvertedUserNeighborhood(UserNeighborhood<U> neighborhood, Predicate<U> filter) Constructor.

Method Summary

Methods inherited from class es.uam.eps.ir.ranksys.nn.user.neighborhood.UserNeighborhood

getNeighbors, getNeighbors, numUsers, uidx2user, user2uidx

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.FastUserIndex

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

Constructor Detail

InvertedUserNeighborhood

public InvertedUserNeighborhood(UserNeighborhood<U> neighborhood,
                                Predicate<U> filter)

Constructor.

Parameters:

neighborhood - original neighborhood to be inverted

filter - determines which users require inverted neighborhoods

InvertedUserNeighborhood

public InvertedUserNeighborhood(UserNeighborhood<U> neighborhood,
                                IntPredicate filter)

Constructor - fast version.

Parameters:

neighborhood - original neighborhood to be inverted

filter - determines which users require inverted neighborhoods