2987 search results - page 383 / 598 » Multiobjective Query Optimization |
142
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PVLDB
2010
15 years 11 days ago
2010
Recently, there has been increasing interest in extending relational query processing to include data obtained from unstructured sources. A common approach is to use stand-alone I...
210
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ICDE
2007
IEEE
16 years 3 months ago
2007
IEEE
Probabilistic databases have received considerable attention recently due to the need for storing uncertain data produced by many real world applications. The widespread use of pr...
125
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WWW
2005
ACM
16 years 2 months ago
2005
ACM
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
111
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WWW
2003
ACM
16 years 2 months ago
2003
ACM
Continuous queries are queries for which responses given to users must be continuously updated, as the sources of interest get updated. Such queries occur, for instance, during on...
126
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SIGMOD
2002
ACM
16 years 2 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...