6746 search results - page 263 / 1350 » Multimodal Database Query |
SIGMOD
1997
ACM
15 years 8 months ago
1997
ACM
In this paper, we study a simple SQL extension that enables query writers to explicitly limit the cardinality of a query result. We examine its impact on the query optimization an...
165
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DEXA
2008
Springer
15 years 5 months ago
2008
Springer
In professional environments which are characterized by a domain (Medicine, Law, etc.), information retrieval systems must be able to process precise queries, mostly because of the...
207
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
Uncertain data are inherent in some important applications, such as environmental surveillance, market analysis, and quantitative economics research. Due to the importance of thos...
134
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SIGMOD
2011
ACM
14 years 6 months ago
2011
ACM
In this paper, we introduce U-MAP, a new system for schema mapping generation. U-MAP builds upon and extends existing schema mapping techniques. However, it mitigates some key pro...
155
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KRDB
1996
15 years 5 months ago
1996
Metaprogramming adds new expressive power to logic programming which can be advantageous to transfer to the field of deductive databases. We propose metaprogramming as a way to mo...