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Query analytics over probabilistic databases with unmerged duplicates

Ioannou Aikaterini, Garofalakis Minos

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URIhttp://purl.tuc.gr/dl/dias/D4893A56-E33D-4BDB-8414-A93DDC1A06E9-
Identifierhttp://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7045501-
Identifierhttps://doi.org/10.1109/TKDE.2015.2405507-
Languageen-
Extent16 pagesen
TitleQuery analytics over probabilistic databases with unmerged duplicatesen
CreatorIoannou Aikaterinien
CreatorΙωαννου Αικατερινηel
CreatorGarofalakis Minosen
CreatorΓαροφαλακης Μινωςel
PublisherInstitute of Electrical and Electronics Engineersen
Content SummaryRecent entity resolution approaches exhibit benefits when addressing the problem through unmerged duplicates: instances describing real-world objects are not merged based on apriori thresholds or human intervention, instead relevant resolution information is employed for evaluating resolution decisions during query processing using “possible worlds” semantics. In this paper, we present the first known approach for efficiently handling complex analytical queries over probabilistic databases with unmerged duplicates. We propose the ENTITY-JOIN operator that allows expressing complex aggregation and iceberg/top-k queries over joins between tables with unmerged duplicates and other database tables. Our technical content includes a novel indexing structure for efficient access to the entity resolution information and novel techniques for the efficient evaluation of complex probabilistic queries that retrieve analytical and summarized information over a (potentially, huge) collection of possible resolution worlds. Our extensive experimental evaluation verifies the benefits of our approach.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-10-29-
Date of Publication2015-
SubjectCouplingsen
SubjectProbabilistic logicen
SubjectSemanticsen
SubjectIndexingen
SubjectData modelsen
SubjectAggregatesen
Bibliographic CitationA. Ioannou and M. Garofalakis, "Query analytics over probabilistic databases with unmerged duplicates", IEEE Trans. Knowl. Data Eng., vol. 27, no. 8, pp. 2245-2260, Aug. 2015. doi:10.1109/TKDE.2015.2405507en

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