620 search results - page 61 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
139
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SENSYS
2004
ACM
15 years 9 months ago
2004
ACM
Previous approaches for computing duplicate-sensitive aggregates in sensor networks (e.g., in TAG) have used a tree topology, in order to conserve energy and to avoid double-count...
224
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GIS
2004
ACM
16 years 5 months ago
2004
ACM
Despite various interoperability recommendations, heterogeneity of Geographic Information Systems (GIS) is still an issue. This led to an increasing need for a data integration sy...
128
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ICDE
1998
IEEE
15 years 8 months ago
1998
IEEE
Query folding is a technique for determining how a query may be answered using a given set of resources, which may include materialized views, cached results of previous queries, ...
145
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SIGIR
2008
ACM
15 years 3 months ago
2008
ACM
The primary business model behind Web search is based on textual advertising, where contextually relevant ads are displayed alongside search results. We address the problem of sel...
233
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ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
In this paper, we address the problem of extending a relational database system to facilitate efficient real-time application of dynamic probabilistic models to streaming data. he ...