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

Class UserMetricReranker<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.user.UserMetricReranker<U>

Type Parameters:

U - type of the users.

All Implemented Interfaces:

GlobalReranker<U,U>

Direct Known Subclasses:

OriginalDirectUserMetricReranker, OriginalInverseUserMetricReranker, ProgressiveDirectUserMetricReranker, ProgressiveInverseUserMetricReranker

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

Abstract implementation of a reranking strategy for contact recommendation that modifies the order of the candidate users according to some vertex metric.

Field Summary

Fields

Modifier and Type	Field	Description
protected VertexMetric<U>	metric	The selected metric

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
UserMetricReranker(double lambda, int cutoff, java.util.function.Supplier<Normalizer<U>> norm, Graph<U> graph, VertexMetric<U> metric)	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

metric

protected final VertexMetric<U> metric

The selected metric

Constructor Details

UserMetricReranker

public UserMetricReranker(double lambda, int cutoff, java.util.function.Supplier<Normalizer<U>> norm, Graph<U> graph, VertexMetric<U> metric)

Constructor.

Parameters:

lambda - trade-off between the original and novelty scores

cutoff - maximum length of the definitive ranking.

norm - the normalization strategy.

graph - the original graph.

metric - the vertex metric to optimize.