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The multiset semantics of SPARQL patterns
October 14, 2016 Β· Declared Dead Β· π International Workshop on the Semantic Web
"No code URL or promise found in abstract"
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Authors
Renzo Angles, Claudio Gutierrez
arXiv ID
1610.04315
Category
cs.DB: Databases
Citations
33
Venue
International Workshop on the Semantic Web
Last Checked
6 months ago
Abstract
The paper determines the algebraic and logic structure of the multiset semantics of the core patterns of SPARQL. We prove that the fragment formed by AND, UNION, OPTIONAL, FILTER, MINUS and SELECT corresponds precisely to both, the intuitive multiset relational algebra (projection, selection, natural join, arithmetic union and except), and the multiset non-recursive Datalog with safe negation.
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