1588 search results - page 82 / 318 » Consistent query answering in databases |
163
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ICCS
2009
Springer
15 years 10 months ago
2009
Springer
Abstract. In knowledge bases, the open world assumption and the ability to express variables may lead to an answer redundancy problem. This problem occurs when the returned answers...
220
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
Top-k processing in uncertain databases is semantically and computationally different from traditional top-k processing. The interplay between query scores and data uncertainty ma...
139
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TMC
2010
15 years 2 months ago
2010
—This paper proposes a cache consistency scheme based on a previously proposed architecture for caching database data in MANETs. The original scheme for data caching stores the q...
200
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IDEAS
2010
IEEE
15 years 2 months ago
2010
IEEE
Even though an effective cost-based query optimizer is of utmost importance for the efficient evaluation of XQuery expressions in native XML database systems, such a component is...
164
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SSDBM
2002
IEEE
15 years 9 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...