Show simple item record

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.date.accessioned2010-10-04T13:21:16Z
dc.date.available2010-10-04T13:21:16Z
dc.date.created2009
dc.date.issued2009
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.identifier.isbn978-1-60558-801-8
dc.identifier.urihttp://hdl.handle.net/2117/9276
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.language.isoeng
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.subject.lcshAlgorithms
dc.subject.lcshOntology
dc.titleDiscovering functional dependencies from ontologies
dc.typeConference report
dc.subject.lemacInformació -- Sistemes d'emmagatzematge i recuperació
dc.subject.lemacEstructura lògica -- Informàtica
dc.subject.lemacAlgorismes
dc.subject.lemacOntologia
dc.contributor.groupUniversitat Politècnica de Catalunya. MPI - Modelització i Processament de la Informació
dc.identifier.doi10.1145/1651291.1651293
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://portal.acm.org/citation.cfm?doid=1651291.1651293
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac3109721
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
local.citation.startingPage1
local.citation.endingPage8


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder