Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Extended precision quality measure for recommender systems
Año:2011
Áreas de investigación
  • Ciencias de la computación y tecnología informática
Datos
Descripción
Recommender systems are highly sensitive to cases of false- positives, that is, recommendations made which have proved not to be relevant. These situations often lead to a loss of trust in the system by the users; therefore, every improvement in the recommendation quality measures is important. Recommender systems which admit an extensive set of values in the votes (usually those which admit more than 5 stars to rate an item) cannot be assessed adequately using precision as a recommendation quality measure; this is due to the fact that the division of the possible values of the votes into just two sets, relevant (true-positive) and not-relevant (false-positive), proves to be too poor and involves the accumulation of values in the not-relevant set. In order to establish a balanced quality measure it is necessary to have access to detailed information on how the cases of false-positives are distributed. This paper provides the mathematical formalism which defines the precision quality measure in recommender systems and its generalization to extended-precision.
Internacional
Si
JCR del ISI
No
Título de la revista
Proceedings of the 14th international conference on Advances in artificial intelligence: spanish association for artificial intelligence
ISSN
0302-9743
Factor de impacto JCR
Información de impacto
Volumen
DOI
Número de revista
Desde la página
433
Hasta la página
442
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Fernando Ortega Requena (UPM)
  • Autor: Antonio Hernando Esteban (UPM)
  • Autor: Jesus Bobadilla Sancho (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Lenguajes, Proyectos y Sistemas Informáticos
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)