3891 search results - page 241 / 779 » Query Models |
178
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VLDB
2005
ACM
16 years 16 hour ago
2005
ACM
A “plan diagram” is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. In this paper, we present and an...
171
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COCO
2004
Springer
15 years 12 months ago
2004
Springer
In decision tree models, considerable attention has been paid on the effect of symmetry on computational complexity. That is, for a permutation group Γ, how low can the complexit...
171
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CIKM
2009
Springer
15 years 11 months ago
2009
Springer
With the development of positioning technologies and the boosting deployment of inexpensive location-aware sensors, large volumes of trajectory data have emerged. However, efficie...
154
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ADBIS
2010
Springer
15 years 8 months ago
2010
Springer
Abstract. The need for location-based services has motivated an important research effort in the efficient processing of location-dependent queries. Most of the existing approaches...
161
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CIDR
2007
15 years 8 months ago
2007
We propose a radical approach to relational query processing that aims at automatically and consistently achieving a good performance on any memory hierarchy. We believe this auto...