1168 search results - page 76 / 234 » Optimization strategies for complex queries |
92
Voted
DLOG
2007
15 years 6 days ago
2007
We present cq-programs, which enhance nonmonotonic description logics (dl-) programs by conjunctive queries (CQ) and union of conjunctive queries (UCQ) over Description Logics kno...
101
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CORR
2010
Springer
14 years 7 months ago
2010
Springer
In this paper, we propose a stochastic model to describe how search service providers charge client companies based on users' queries for the keywords related to these compan...
VLDB
1989
ACM
15 years 1 months ago
1989
ACM
This paper presents a parallel algorithm for recursive query processing and shows how it can be efficiently implemented in a local computer network. The algorithm relies on an int...
162
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ICDE
2001
IEEE
15 years 11 months ago
2001
IEEE
Semi-join reducers were introduced in the late seventies as a means to reduce the communication costs of distributed database systems. Subsequent work in the eighties showed, howe...
176
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
A Business Process (BP) consists of some business activities undertaken by one or more organizations in pursuit of some business goal. Tools for querying and analyzing BP specifica...