549 search results - page 18 / 110 » Data Expiration and Aggregate Queries |
107
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AMW
2010
15 years 1 months ago
2010
In this work we present in-network techniques to improve the efficiency of spatial aggregate queries. Such queries are very common in a sensornet setting, demanding more targeted t...
107
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AAAI
2008
15 years 2 months ago
2008
Current search engines cannot effectively rank those relational data, which exists on dynamic websites supported by online databases. In this study, to rank such structured data, ...
123
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MOBICOM
2010
ACM
14 years 12 months ago
2010
ACM
Consider mobile targets moving in a plane and their movements being monitored by a network such as a field of sensors. We develop distributed algorithms for in-network tracking an...
125
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SIGMOD
2001
ACM
15 years 12 months ago
2001
ACM
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...
DASFAA
2010
IEEE
15 years 3 months ago
2010
IEEE
We address the problem of skyline query processing for a count-based window of continuous streaming data that involves both totally- and partially-ordered attribute domains. In thi...