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dc.contributor.authorRomero Moral, Óscar
dc.contributor.authorCalvanese, Diego
dc.contributor.authorAbelló Gamazo, Alberto
dc.contributor.authorRodríguez Muro, Mariano
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria de Serveis i Sistemes d'Informació
dc.identifier.citationRomero, O. [et al.]. Discovering functional dependencies from ontologies. A: International Workshop on Data Warehousing and OLAP. "12th International Workshop on Data Warehousing and OLAP". Hong Kong: Association for Computing Machinery (ACM), 2009, p. 1-8.
dc.description.abstractNowadays, it is widely accepted that the data warehouse design task should be largely automated. Furthermore, the data warehouse conceptual schema must be structured according to the multidimensional model and as a consequence, the most common way to automatically look for subjects and dimensions of analysis is by discovering functional dependencies (as dimensions functionally depend on the fact) over the data sources. Most advanced methods for automating the design of the data warehouse carry out this process from relational OLTP systems, assuming that a RDBMS is the most common kind of data source we may find, and taking as starting point a relational schema. In contrast, in our approach we propose to rely instead on a conceptual representation of the domain of interest formalized through a domain ontology expressed in the DL-Lite Description Logic. We propose an algorithm to discover functional dependencies from the domain ontology that exploits the inference capabilities of DL-Lite, thus fully taking into account the semantics of the domain. We also provide an evaluation of our approach in a real-world scenario.
dc.format.extent8 p.
dc.publisherAssociation for Computing Machinery (ACM)
dc.subjectÀrees temàtiques de la UPC::Informàtica::Informàtica teòrica::Algorísmica i teoria de la complexitat
dc.subjectÀrees temàtiques de la UPC::Informàtica::Sistemes d'informació
dc.subject.lcshInformation storage and retrieval systems
dc.subject.lcshLogic design
dc.titleDiscovering functional dependencies from ontologies
dc.typeConference report
dc.subject.lemacInformació -- Sistemes d'emmagatzematge i recuperació
dc.subject.lemacEstructura lògica -- Informàtica
dc.contributor.groupUniversitat Politècnica de Catalunya. MPI - Modelització i Processament de la Informació
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorRomero, O.; Calvanese, D.; Abelló, A.; Rodríguez , M.
local.citation.contributorInternational Workshop on Data Warehousing and OLAP
local.citation.pubplaceHong Kong
local.citation.publicationName12th International Workshop on Data Warehousing and OLAP

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