651 search results - page 22 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
PVLDB
2008
13 years 8 months ago
2008
The diversity and large volumes of data processed in the Natural Sciences today has led to a proliferation of highlyspecialized and autonomous scientific databases with inherent a...
NIPS
2004
13 years 10 months ago
2004
High retrieval precision in content-based image retrieval can be attained by adopting relevance feedback mechanisms. These mechanisms require that the user judges the quality of t...
WISE
2002
Springer
14 years 1 months ago
2002
Springer
We propose a new approach for the efficient evaluation of XPath expressions. This is important, since XPath is not only used as a simple, stand-alone query language, but is also ...
ESWS
2008
Springer
13 years 10 months ago
2008
Springer
Integrated access to multiple distributed and autonomous RDF data sources is a key challenge for many semantic web applications. As a reaction to this challenge, SPARQL, the W3C Re...
ADBIS
2007
Springer
14 years 3 months ago
2007
Springer
The exponential growth of the web and the extended use of database management systems in widely distributed information systems has brought to the fore the need for seamless interc...