649 search results - page 30 / 130 » Improved and Optimized Partitioning Techniques in Database Q... |
131
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SEMWEB
2010
Springer
14 years 11 months ago
2010
Springer
We study the problem of SPARQL query optimization on top of distributed hash tables. Existing works on SPARQL query processing in such environments have never been implemented in a...
200
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SIGMOD
2007
ACM
16 years 2 months ago
2007
ACM
Query processing over graph-structured data is enjoying a growing number of applications. Keyword search on a graph finds a set of answers, each of which is a substructure of the ...
124
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EDBT
2006
ACM
16 years 2 months ago
2006
ACM
Federated queries are regular relational queries accessing data on one or more remote relational or non-relational data sources, possibly combining them with tables stored in the ...
113
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DASFAA
1999
IEEE
15 years 6 months ago
1999
IEEE
The spatial query has been processed in two steps, the filter step and the refinement step, due to a large volume and high complexity of the spatial data. However, this approach h...
ICDE
2007
IEEE
15 years 8 months ago
2007
IEEE
Microaggregation is a technique used to protect privacy in databases and location-based services. We propose a new hybrid technique for multivariate microaggregation. Our techniqu...