3225 search results - page 342 / 645 » Query Optimization by Stored Queries |
190
Voted
PEPM
2010
ACM
16 years 4 months ago
2010
ACM
We show how to efficiently evaluate generic map-filter-product queries, generalizations of select-project-join (SPJ) queries in relational algebra, based on a combination of two...
196
Voted
ICDE
2006
IEEE
16 years 1 months ago
2006
IEEE
It has been well recognized that data mining is an interactive and iterative process. In order to support this process, one of the long-term goals of data mining research has been...
235
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DLOG
2011
14 years 11 months ago
2011
Query answering in Ontology Based Data Access (OBDA) exploits the knowledge of an ontology’s TBox to deal with incompleteness of the ABox (or data source). Current query-answerin...
206
Voted
WWW
2007
ACM
16 years 8 months ago
2007
ACM
This paper explores the use of social annotations to improve web search. Nowadays, many services, e.g. del.icio.us, have been developed for web users to organize and share their f...
198
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CIKM
2004
Springer
16 years 25 days ago
2004
Springer
The performance of web search engines may often deteriorate due to the diversity and noisy information contained within web pages. User click-through data can be used to introduce...