418 search results - page 28 / 84 » Optimizing Large Join Queries in Mediation Systems |
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CVDB
2005
ACM
14 years 11 months ago
2005
ACM
The typical mode for querying in an image content-based information system is query-by-example, which allows the user to provide an image as a query and to search for similar imag...
SEMWEB
2010
Springer
14 years 7 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
COOPIS
2003
IEEE
15 years 3 months ago
2003
IEEE
Abstract. Decision-makers in critical fields such as medicine and finance make use of a wide range of information available over the Internet. Mediation, a data integration techn...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
Spatial Database Management Systems (SDBMS), e.g., Geographical Information Systems, that manage spatial objects such as points, lines, and hyper-rectangles, often have very high ...
VLDB
2001
ACM
15 years 2 months ago
2001
ACM
With the advent of XML as a standard for data representation and exchange on the Internet, storing and querying XML data becomes more and more important. Several XML query languag...