620 search results - page 80 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
166
Voted
IPSN
2007
Springer
15 years 10 months ago
2007
Springer
In this paper we propose a lightweight algorithm for constructing multi-resolution data representations for sensor networks. We compute, at each sensor node u, O(log n) aggregates...
130
Voted
MM
2005
ACM
15 years 9 months ago
2005
ACM
In this paper we unify two supposedly distinct tasks in multimedia retrieval. One task involves answering queries with a few examples. The other involves learning models for seman...
226
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
Content-based dissemination of XML data using the publishsubscribe paradigm is an effective means to deliver relevant data to interested data consumers. To meet the performance ch...
139
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CIKM
2005
Springer
15 years 9 months ago
2005
Springer
In this paper, we propose a versatile disambiguation approach which can be used to make explicit the meaning of structure based information such as XML schemas, XML document struc...
232
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ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...