950 search results - page 42 / 190 » Evaluation over thousands of queries |
WWW
2011
ACM
13 years 4 months ago
2011
ACM
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
ICDE
2010
IEEE
14 years 1 months ago
2010
IEEE
— When a database system is extended with the skyline operator, it is important to determine the most efficient way to execute a skyline query across tables with join operations...
ICDIM
2007
IEEE
14 years 3 months ago
2007
IEEE
: Integrated access to distributed data is an important problem faced in scientific and commercial applications. A data integration system provides a unified view for users to subm...
ICDE
2010
IEEE
14 years 8 months ago
2010
IEEE
Personalized database systems give users answers tailored to their personal preferences. While numerous preference evaluation methods for databases have been proposed (e.g., skylin...
STACS
2010
Springer
14 years 4 months ago
2010
Springer
We construct efficient data structures that are resilient against a constant fraction of adversarial noise. Our model requires that the decoder answers most queries correctly with...