117 search results - page 10 / 24 » SPARQLing constraints for RDF |
WWW
2008
ACM
15 years 10 months ago
2008
ACM
In this paper, we formalize the problem of Basic Graph Pattern (BGP) optimization for SPARQL queries and main memory graph implementations of RDF data. We define and analyze the c...
82
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SEMWEB
2009
Springer
15 years 4 months ago
2009
Springer
The Web of Linked Data forms a single, globally distributed dataspace. Due to the openness of this dataspace, it is not possible to know in advance all data sources that might be r...
DEXAW
2009
IEEE
15 years 4 months ago
2009
IEEE
—In this paper RDFStats is introduced, which is a generator for statistics of RDF sources like SPARQL endpoints and RDF documents. RDFStats does not only provide a statistics gen...
116
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RR
2010
Springer
14 years 8 months ago
2010
Springer
Semantic wikis and other modern knowledge management systems deviate from traditional knowledge bases in that information ranges from unstructured (wiki pages) over semi-formal (ta...
102
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OTM
2007
Springer
15 years 3 months ago
2007
Springer
Abstract The W3C has developed XPath [3] as a query language for XML data. XPath is embedded in many other languages like XQuery and XSLT. The name of XPath derives from its basic ...