es.uam.eps.ir.ranksys.diversity.sales.metrics

Class Entropy<U,I>

java.lang.Object

es.uam.eps.ir.ranksys.metrics.AbstractSystemMetric<U,I>

es.uam.eps.ir.ranksys.diversity.sales.metrics.AbstractSalesDiversityMetric<U,I>

es.uam.eps.ir.ranksys.diversity.sales.metrics.EIUFD<U,I>

es.uam.eps.ir.ranksys.diversity.sales.metrics.Entropy<U,I>

Type Parameters:

U - type of the users

I - type of the items

All Implemented Interfaces:

SystemMetric<U,I>

public class Entropy<U,I>
extends EIUFD<U,I>

Entropy sales diversity metric. It is actually a relevance and rank-unaware version of EIUFD. S. Vargas. Novelty and diversity evaluation and enhancement in Recommender Systems. PhD Thesis.

Author:

Saúl Vargas (saul.vargas@uam.es)

Field Summary

Fields inherited from class es.uam.eps.ir.ranksys.diversity.sales.metrics.AbstractSalesDiversityMetric

cutoff, freeNorm, itemCount, itemWeight, numUsers

Constructor Summary

Constructors

Constructor and Description
Entropy(int cutoff) Constructor.

Method Summary

Methods inherited from class es.uam.eps.ir.ranksys.diversity.sales.metrics.EIUFD

nov

Methods inherited from class es.uam.eps.ir.ranksys.diversity.sales.metrics.AbstractSalesDiversityMetric

add, combine, evaluate, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

Entropy

public Entropy(int cutoff)

Constructor.

Parameters:

cutoff - maximum length of the recommendation lists that is evaluated