4438 search results - page 449 / 888 » Speculative Query Processing |
220
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CIKM
2011
Springer
14 years 6 months ago
2011
Springer
We present Nyaya, a system for the management of Semantic-Web data which couples a general-purpose and extensible storage mechanism with efficient ontology reasoning and querying ...
275
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ICDE
2005
IEEE
16 years 8 months ago
2005
IEEE
We consider the problem of efficiently computing the skyline against the most recent N elements in a data stream seen so far. Specifically, we study the n-of-N skyline queries; th...
286
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ICDE
2003
IEEE
16 years 8 months ago
2003
IEEE
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
267
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VLDB
2007
ACM
16 years 7 months ago
2007
ACM
Workload management for business intelligence (BI) queries poses different challenges than those addressed in the online transaction processing (OLTP) context. The fundamental pro...
253
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SIGMOD
2006
ACM
16 years 7 months ago
2006
ACM
The concept of dominance has recently attracted much interest in the context of skyline computation. Given an Ndimensional data set S, a point p is said to dominate q if p is bett...