373 search results - page 32 / 75 » Querying Priced Information in Databases: The Conjunctive Ca... |
102
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EDBT
2012
ACM
13 years 2 days ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
133
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SIGMOD
2012
ACM
13 years 4 days ago
2012
ACM
While extensive work has been done on evaluating queries over tuple-independent probabilistic databases, query evaluation over correlated data has received much less attention eve...
165
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SIGMOD
2006
ACM
15 years 9 months ago
2006
ACM
Rapid advancements in positioning systems and wireless communications enable accurate tracking of continuously moving objects. This development poses new challenges to database te...
PODS
2010
ACM
15 years 2 months ago
2010
ACM
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
CIKM
2009
Springer
15 years 4 months ago
2009
Springer
Most of existing methods of keyword search over relational databases find the Steiner trees composed of relevant tuples as the answers. They identify the Steiner trees by discove...