3009 search results - page 482 / 602 » The Expressive Rate of Constraints |
176
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
We define a framework for static optimization of sliding window conjunctive queries over infinite streams. When computational resources are sufficient, we propose that the goal of...
SIGMOD
2003
ACM
15 years 10 months ago
2003
ACM
We consider an environment where distributed data sources continuously stream updates to a centralized processor that monitors continuous queries over the distributed data. Signif...
SIGMOD
2002
ACM
15 years 10 months ago
2002
ACM
In environments where exact synchronization between source data objects and cached copies is not achievable due to bandwidth or other resource constraints, stale (out-of-date) cop...
114
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PERCOM
2008
ACM
15 years 9 months ago
2008
ACM
Wireless sensor networks are commonly used to monitor and control the physical world. To provide a meaningful service such as disaster and emergency surveillance, meeting real-tim...