Query approximation in the case of incompletely aligned datasets

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dc.contributor.authorTorre, Ana I.
dc.contributor.authorBermudez, Jesus
dc.contributor.authorIllarramendi, Arantza
dc.contributor.institutionHPA
dc.date.accessioned2024-07-24T12:16:20Z
dc.date.available2024-07-24T12:16:20Z
dc.date.issued2015
dc.descriptionPublisher Copyright: © 2015 Sistedes. All rights reserved.
dc.description.abstractClouds of Linked Open Data about the same domain promote the formulation of a query over a source dataset and then try to process the same query over different target datasets, one after another, in order to obtain a broader set of answers. However, heterogeneity of vocabularies used in the datasets and the scarce number of alignments among those datasets makes that querying task extremely difficult. This paper presents a proposal that allows on demand transformations of queries by using a set of transformation rules that are able to rewrite a query formulated over a source dataset into another query adequate for a target dataset, which approximates the original one. The approach relieves users from knowing the vocabulary used in the targeted datasets and even more it considers situations where alignments do not exist or they are not suitable for the formulated query. Therefore, in order to favor the possibility of getting answers, sometimes there is no guarantee of obtaining a semantically equivalent translation. Experiments with benchmark queries validate the feasibility of the proposal.en
dc.description.sponsorshipThis work is supported by the FEDER/TIN2013-46238-C4-1-R project, by the financial grant IT797-13 and the Iñaki Goenaga (FCT-IG) Technology Center Foundation.
dc.description.statusPeer reviewed
dc.identifier.citationTorre , A I , Bermudez , J & Illarramendi , A 2015 , ' Query approximation in the case of incompletely aligned datasets ' , Paper presented at 20th Jornadas de Ingenier�a del Software y Bases de Datos, JISBD 2015 - 20th Conference on Software Engineering and Databases, JISBD 2015 , Santander , Spain , 15/09/15 - 17/09/15 .
dc.identifier.citationconference
dc.identifier.urihttps://hdl.handle.net/11556/4644
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85064079241&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.projectIDFundación Centros Tecnológicos Iñaki Goenaga, FCT-IG
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsHardware and Architecture
dc.subject.keywordsInformation Systems
dc.subject.keywordsSoftware
dc.subject.keywordsInformation Systems and Management
dc.titleQuery approximation in the case of incompletely aligned datasetsen
dc.typeconference output
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