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- W2407875922 abstract "We present DEFENDER and illustrate the benefits of identifying promising query decompositions and efficient plans that combine results from federations of SPARQL endpoints. DEFENDER is a query decomposer that implements a two-fold approach. First, triple patterns in a SPARQL query are decomposed into simple sub-queries that can be completely executed on one endpoint. Second, sub-queries are combined into a feasible bushy tree plan where the number of joins is maximized and the height of tree is minimized. We demonstrate DEFENDER and compare its performance with respect to state-of-the-art RDF engines for queries of diverse complexity, networks with different delays, and dataset differently distributed among a variety of endpoints." @default.
- W2407875922 created "2016-06-24" @default.
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- W2407875922 date "2015-01-01" @default.
- W2407875922 modified "2023-09-25" @default.
- W2407875922 title "DEFENDER: A DEcomposer for quEries agaiNst feDERations of Endpoints" @default.
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- W2407875922 doi "https://doi.org/10.1007/978-3-662-46641-4_49" @default.
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