Tesis doctoralsDepartament d'Enginyeria Informàtica i Matemàtiques

Enhancing the ELECTRE decision support method with semantic data

  • Datos identificativos

    Identificador:  TDX:2883
    Autores:  Martínez García, Miriam
    Resumen:
    Reach a decision when options are defined on a set of diverse criteria is not easy. This thesis is focused on improving the methodology ELECTRE, which is the most used outranking-based method. In this dissertation, we focus on decision problems involving non-numerical information, such as multi-valued semantic criteria, which may take as values the concepts of a given domain ontology. First, I propose a new way of handling semantic criteria to avoid the aggregation of the numerical scores before the ranking procedure. This method, called ELECTRE-SEM, follows the same principles than the classic ELECTRE but in this case the concordance and discordance indices are defined in terms of the pairwise comparison of the interest scores. Second, I also propose to create a semantic user profile by storing preference scores into the ontology. The numerical interest score attached to the most specific concepts permits to distinguish better the preferences of the user, improving the quality of the decision by the incorporation of an aggregation methodology to infer the user's preferences by considering taxonomic relations between concepts. The proposed methodology has been applied in two case studies: the assessment of power generation plants and the recommendation of touristic activities in Tarragona.
  • Otros:

    Editor: Universitat Rovira i Virgili
    Fecha: 2018-11-16
    Identificador: http://hdl.handle.net/10803/665102
    Departamento/Instituto: Departament d'Enginyeria Informàtica i Matemàtiques, Universitat Rovira i Virgili.
    Idioma: eng
    Autor: Martínez García, Miriam
    Director: Valls Mateu, Aïda, Moreno Ribas, Antonio
    Fuente: TDX (Tesis Doctorals en Xarxa)
    Formato: 157 p., application/pdf
  • Palabras clave:

    Intelligent tourism recommender systems
    Ontology
    Decision making
    Sistemas inteligentes de recomendación de turismo
    Toma de decisiones
    Sistemes de recomanació de turisme intel·ligent
    Ontologia
    Presa de decisions
    Enginyeria i Arquitectura
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