Package es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.comm

Class CommunityReranker<U>

java.lang.Object

es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapReranker<U,I>

es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapGreedyReranker<U,I>

es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapLambdaReranker<U,U>

es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.GraphSwapReranker<U>

es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.comm.CommunityReranker<U>

Type Parameters:

U - type of the users

All Implemented Interfaces:

GlobalReranker<U,U>

Direct Known Subclasses:

AbstractCommunityDegreeGiniComplement, AbstractCommunityEdgeGiniComplement, AlternativeSemiCompleteCommunityEdgeGiniComplement, OuterAlternativeSemiCompleteCommunityEdgeGiniComplement, SizeNormalizedCompleteCommunityEdgeGiniComplement, SizeNormalizedInterCommunityEdgeGiniComplement, SizeNormalizedSemiCompleteCommunityEdgeGiniComplement

public abstract class CommunityReranker<U>
extends GraphSwapReranker<U>

Swap reranker for modifying it according to the community metrics of the network.

Field Summary

Fields

Modifier and Type	Field	Description
protected Communities<U>	communities	Communities.
protected MultiGraph<java.lang.Integer>	communityGraph	Community graph.
protected boolean	selfloops	Indicates if self-loops are allowed or not

Fields inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.GraphSwapReranker

graph, recs

Fields inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapLambdaReranker

novMap, novStats, relStats

Fields inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapGreedyReranker

cutOff

Fields inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapReranker

globalvalue

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
protected void	computeGlobalValue()	Computes the global value of the property we want to enhance.

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.GraphSwapReranker

innerUpdate, nov, novAdd, novAddDelete, novDelete, rerankRecommendations, update

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapLambdaReranker

rerankPermutation, selectItem, value, valuetop

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapGreedyReranker

getBasePerm, rerankRecommendation

Methods inherited from class es.uam.eps.ir.relison.links.recommendation.reranking.global.swap.SwapReranker

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 MultiGraph<java.lang.Integer> communityGraph

Community graph.

selfloops

protected boolean selfloops

Indicates if self-loops are allowed or not

Constructor Details

CommunityReranker

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

Constructor

Parameters:

lambda - a trade-off between the original score and the metric value

cutoff - the number of items to rerank

norm - the normalization scheme.

graph - the original network.

communities - relation between communities and users.

selfloops - true if selfloops are allowed, false if they are not.

Method Details

computeGlobalValue

protected void computeGlobalValue()

Description copied from class: GraphSwapReranker

Computes the global value of the property we want to enhance.

Specified by:

computeGlobalValue in class GraphSwapReranker<U>