nSPARQL is essentially obtained by using triple patterns with nested regular expressions in the predicate position, plus SPARQL operators AND, OPT, UNION, and FILTER. Before formally introducing nSPARQL, we recall the necessary defini- tions about SPARQL. SPARQL [20] is the standard language for querying RDF data.
In this paper, we propose the query language nSPARQL that uses nested regular expressions to navigate RDF data. We study some of the fundamental properties of ...
In this paper, we study some of the fundamental properties of nSPARQL concerning expressiveness and complexity of evaluation. Regarding expressiveness, we show ...
[PDF] nSPARQL: A Navigational Language for RDF - Marcelo Arenas
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Jun 18, 2010 · Navigational features have been largely recognized as fundamental for graph database query languages. This fact has motivated several ...
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Jul 9, 2018 · In this paper, we propose the query language nSPARQL that uses nested regular expressions to navigate RDF data.
In this paper, we propose the query language nSPARQL that uses nested regular expressions to navigate RDF data. We study some of the fundamental properties of ...
Abstract. Navigational features have been largely recognized as fundamental for graph database query languages. This fact has motivated several authors to.
Oct 22, 2024 · In this paper, we propose the query language nSPARQL that uses nested regular expressions to navigate RDF data. We study some of the fundamental ...
Purpose – The paper aims to discuss extensions of SPARQL that use regular expressions to navigate RDF graphs and may be used to answer queries considering RDFS ...
nSPARQL: A Navigational Language for RDF. https://doi.org/10.1007/978-3-540-88564-1_5 · Full text. Journal: Lecture Notes in Computer Science The Semantic Web ...