829 search results - page 100 / 166 » Location-aware Query Processing and Optimization |
105
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SIGMOD
2003
ACM
16 years 2 months ago
2003
ACM
We discuss the design of an acquisitional query processor for data collection in sensor networks. Acquisitional issues are those that pertain to where, when, and how often data is...
CGF
2004
15 years 2 months ago
2004
We present a simple but powerful algorithm for optimizing the usage of hardware occlusion queries in arbitrary complex scenes. Our method minimizes the number of issued queries an...
184
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SIGMOD
2007
ACM
16 years 2 months ago
2007
ACM
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...
114
Voted
OOPSLA
2007
Springer
15 years 8 months ago
2007
Springer
Current real-world software applications typically involve heavy use of relational and XML data and their query languages. Unfortunately object-oriented languages and database que...
119
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GIS
2009
ACM
15 years 5 months ago
2009
ACM
In an active WSN where user queries are regularly processed, a significant proportion of nodes relay and overhear data generated by other nodes in the network. In this paper, we ...