770 search results - page 69 / 154 » An Approach to Querying Multiple Object Databases |
102
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CIKM
2006
Springer
15 years 1 months ago
2006
Springer
In this paper we introduce the problem of Constrained Subspace Skyline Queries. This class of queries can be thought of as a generalization of subspace skyline queries using range...
151
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SIGMOD
2007
ACM
15 years 10 months 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 ...
PODS
2004
ACM
15 years 10 months ago
2004
ACM
We present a novel coding-based technique for answering spatial and spatiotemporal queries on objects moving along a system of curves on the plane such as many road networks. We h...
198
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ACIIDS
2011
IEEE
14 years 4 months ago
2011
IEEE
While in the traditional workflow processes the control flow is determined statically within process definitions, in declarative workflow processes the control flow is dynamic and ...
112
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PODS
1998
ACM
15 years 2 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 ...