6974 search results - page 273 / 1395 » Querying Semi-Structured Data |
177
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EDBT
2010
ACM
16 years 1 months ago
2010
ACM
The wide adaptation of GPS and cellular technologies has created many applications that collect and maintain large repositories of data in the form of trajectories. Previous work ...
192
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ER
2003
Springer
15 years 12 months ago
2003
Springer
XML is a widespread W3C standard used by several kinds of applications for data representation and exchange over the web. In the context of a system that provides semantic integrat...
146
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ICDT
1999
ACM
15 years 11 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
280
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ICDE
2008
IEEE
16 years 8 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...
285
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ICDE
2005
IEEE
16 years 8 months ago
2005
IEEE
Index structures are designed to optimize search performance, while at the same time supporting efficient data updates. Although not explicit, existing index structures are typica...