117 search results - page 19 / 24 » SPARQLing constraints for RDF |
W4A
2006
ACM
15 years 3 months ago
2006
ACM
Graphical representations are a powerful way of conveying information. Their use has made life much easier for most sighted users, but people with disabilities or users who work i...
SWAP
2007
14 years 10 months ago
2007
Abstract. Ontologies are pervading many areas of knowledge representation and management. To date, most research efforts have been spent on the development of sufficiently express...
SEMWEB
2010
Springer
14 years 7 months ago
2010
Springer
We develop query relaxation techniques for regular path queries and combine them with query approximation in order to support flexible querying of RDF data when the user lacks know...
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EKAW
2010
Springer
14 years 8 months ago
2010
Springer
The quality of data is a critical factor for all kinds of decision-making and transaction processing. While there has been a lot of research on data quality in the past two decades...
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SEMWEB
2009
Springer
15 years 4 months ago
2009
Springer
In many data-centric applications, it is desirable to use OWL as an expressive schema language with which one expresses constraints that must be satisfied by instance data. Howeve...