2514 search results - page 237 / 503 » On the Computation of Approximations of Database Queries |
181
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PODS
2005
ACM
16 years 6 months ago
2005
ACM
In sensor networks, data acquisition frequently takes place at lowcapability devices. The acquired data is then transmitted through a hierarchy of nodes having progressively incre...
141
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EDBT
2010
ACM
16 years 1 months ago
2010
ACM
This paper presents P3Q, a fully decentralized gossip-based protocol to personalize query processing in social tagging systems. P3Q dynamically associates each user with social ac...
285
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ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
We introduce a novel query type defined over streaming moving object data, namely, the Continuous Motion Pattern (CMP) Queries. A motion pattern is defined as a sequence of distin...
276
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ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
Aggregate measures summarizing subsets of data are valuable in exploratory analysis and decision support, especially when dependent aggregations can be easily specified and compute...
201
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SSDBM
2005
IEEE
16 years 7 days ago
2005
IEEE
The widespread use of sensor networks in scientific and engineering applications leads to increased demand on the efficient computation of the collected sensor data. Recent rese...