929 search results - page 123 / 186 » Answering imprecise database queries: a novel approach |
131
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PODS
1998
ACM
15 years 4 months ago
1998
ACM
We consider the problem of estimating CPU (distance computations) and I/O costs for processing range and k-nearest neighbors queries over metric spaces. Unlike the specific case ...
167
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SIGMOD
2007
ACM
16 years 16 hour ago
2007
ACM
Commercial enterprise data warehouses are typically implemented on parallel databases due to the inherent scalability and performance limitation of a serial architecture. Queries ...
ICDE
2007
IEEE
15 years 6 months ago
2007
IEEE
With the rapid progress of mobile devices and positioning technologies, Trajectory Databases (TD) have been in the core of database research during the last decade. Analysis and k...
173
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SIGMOD
2008
ACM
16 years 17 hour ago
2008
ACM
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
112
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WISE
2002
Springer
15 years 4 months ago
2002
Springer
The need of using spatial vector data for web-based and mobile applications has been increasing rapidly. Vector spatial data is difficult to generalise (that is, to derive a suita...