2724 search results - page 362 / 545 » Optimizing Queries on Files |
224
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ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...
268
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ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
Digital videos are increasingly adopted in various multimedia applications where they are usually broadcasted or transmitted as video streams. Continuously monitoring copies on the...
228
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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...
238
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ICDE
2003
IEEE
16 years 5 months ago
2003
IEEE
XML documents are typically queried with a combination of value search and structure search. While querying by values can leverage traditional database technologies, evaluating st...
116
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WWW
2003
ACM
16 years 4 months ago
2003
ACM
This paper focuses on the optimization of the navigation through voluminous subsumption hierarchies of topics employed by Portal Catalogs like Netscape Open Directory (ODP). We ad...