?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Ecient+Inference-aware+RDB2RDF+Query+Rewriting&rft.creator=Mora%2C+Jose&rft.creator=Corcho%2C+Oscar&rft.subject=Computer+Science&rft.description=RDB2RDF+systems+generate+RDF+from+relational+databases%2C+operating+in+two+dierent+manners%3A+materializing+the+database+content+into+RDF+or+acting+as+virtual+RDF+datastores+that+transform+SPARQL+queries+into+SQL.+In+the+former%2C+inferences+on+the+RDF+data+(taking+into+account+the+ontologies+that+they+are+related+to)+are+normally+done+by+the+RDF+triple+store+where+the+RDF+data+is+materialised+and+hence+the+results+of+the+query+answering+process+depend+on+the+store.+In+the+latter%2C+existing+RDB2RDF+systems+do+not+normally+perform+such+inferences+at+query+time.+This+paper+shows+how+the+algorithm+used+in+the+REQUIEM+system%2C+focused+on+handling+run-time+inferences+for+query+answering%2C+can+be+adapted+to+handle+such+inferences+for+query+answering+in+combination+with+RDB2RDF+systems.&rft.publisher=Facultad+de+Inform%C3%83%C2%A1tica+(UPM)&rft.rights=https%3A%2F%2Fcreativecommons.org%2Flicenses%2Fby%2F3.0%2Fes%2F&rft.date=2010-12-13&rft.type=info%3Aeu-repo%2Fsemantics%2Fother&rft.type=Monograph&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=eng&rft.rights=info%3Aeu-repo%2Fsemantics%2FopenAccess&rft.identifier=https%3A%2F%2Foa.upm.es%2F15461%2F