Package es.uam.eps.ir.relison.links.recommendation.reranking.global.local.communities

Class InterCommunityReranker<U>

java.lang.Object

es.uam.eps.ir.relison.links.recommendation.reranking.global.local.LocalReranker<U,I>

es.uam.eps.ir.relison.links.recommendation.reranking.global.local.LocalGreedyReranker<U,I>

es.uam.eps.ir.relison.links.recommendation.reranking.global.local.LocalLambdaReranker<U,U>

es.uam.eps.ir.relison.links.recommendation.reranking.global.local.GraphLocalReranker<U>

es.uam.eps.ir.relison.links.recommendation.reranking.global.local.communities.InterCommunityReranker<U>

Type Parameters:

U - type of the users

All Implemented Interfaces:

GlobalReranker<U,U>

Direct Known Subclasses:

InterCommunityDegreeGiniComplement, InterCommunityEdgeGiniComplement, InverseCommunitySize

public abstract class InterCommunityReranker<U>
extends GraphLocalReranker<U>

Global reranker for computing metrics that only use links between pairs of communities.

Field Summary

Fields

Modifier and Type	Field	Description
protected Communities<U>	communities	Communities
protected MultiGraph<java.lang.Integer>	communityGraph	The community graph.

Fields inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.local.GraphLocalReranker

graph

Fields inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.local.LocalLambdaReranker

novMap, novStats, relStats

Fields inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.local.LocalGreedyReranker

cutOff

Constructor Summary

Constructors

Constructor	Description
InterCommunityReranker(double lambda, int cutoff, java.util.function.Supplier<Normalizer<U>> norm, Graph<U> graph, Communities<U> communities)	Constructor.

Method Summary

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.local.GraphLocalReranker

innerUpdate, update

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.local.LocalLambdaReranker

nov, rerankPermutation, selectItem, value

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.local.LocalGreedyReranker

getBasePerm, rerankRecommendation

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.local.LocalReranker

rerankRecommendations, update

Methods inherited from class java.lang.Object

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

Field Details

communities

protected final Communities<U> communities

Communities

communityGraph

protected final MultiGraph<java.lang.Integer> communityGraph

The community graph.

Constructor Details

InterCommunityReranker

public InterCommunityReranker(double lambda, int cutoff, java.util.function.Supplier<Normalizer<U>> norm, Graph<U> graph, Communities<U> communities)

Constructor.

Parameters:

lambda - trade-off between the recommendation score and the novelty/diversity value.

cutoff - number of elements to take.

norm - the normalization strategy.

graph - the original graph.

communities - the relation between users and communities.