5221 search results - page 192 / 1045 » An On-line Problem Database |
154
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PVLDB
2010
15 years 4 months ago
2010
Data ambiguity is inherent in applications such as data integration, location-based services, and sensor monitoring. In many situations, it is possible to “clean”, or remove, ...
177
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EDBT
2009
ACM
16 years 1 months ago
2009
ACM
Materialized views (MV) can significantly improve the query performance of relational databases. In this paper, we consider MVs to optimize complex scenarios where many heterogen...
164
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BMCBI
2005
15 years 6 months ago
2005
Background: Biological resources are essential tools for biomedical research. Their availability is promoted through on-line catalogues. Common Access to Biological Resources and ...
181
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DKE
2002
15 years 6 months ago
2002
Topological invariants of spatial databases (i.e., finite structures that capture the topological properties of the database) are receiving increasing attention since they can act...
196
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CACM
1998
15 years 5 months ago
1998
abstraction for modeling these problems is to view the Web as a collection of (usually small and heterogeneous) databases, and to view programs that extract and process Web data au...