It provides powerful facilities to extract information out of large sets of RDF data. This report describes a transformation from SPARQL queries into the ...
Bibliographic details on SPARQL Query Splitter: query translation between different contexts.
In this demo, we present SPARQL Query Splitter, a tool that translates SPARQL user queries posed over an entry point schema to a number of queries over the ...
Sep 16, 2019 · Is it possible using a SPARQL query to pull out the latest comment of every commenter ? So we have to split up the data by commenter then ...
SPARQL Query Splitter: query translation between different contexts. Carlos R. Osuna David Ruiz Rafael Corchuelo José Luis Arjona. Published in: JISBD (2009).
A challenging task in this context is to translate the user query, which is posed over the unified entry point, to the integrated applications. The user query ...
Feb 10, 2016 · The main thing to keep in mind is that subqueries are evaluated foremost ie the query is evaluated from the innermost first, to the outermost.
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Mar 21, 2013 · This specification defines the syntax and semantics of the SPARQL query language for RDF. SPARQL can be used to express queries across diverse data sources.
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In this section, we describe our main contribution by detailing all procedures used in our SQL-to-SPARQL algorithm allowing the semantic conversion of Left and ...
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Queries can be evaluated against a graph with the rdflib.graph.Graph.query() method, and updates with rdflib.graph.Graph.update().