712 search results - page 30 / 143 » Decoupled Query Optimization for Federated Database Systems |
201
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ICDE
2008
IEEE
16 years 3 months ago
2008
IEEE
In this paper we address the problem of minimizing the response time of a multi-way join query using pipelined (inter-operator) parallelism, in a parallel or a distributed environ...
112
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KDD
1994
ACM
15 years 6 months ago
1994
ACM
Semantic query optimization can dramatically speed up database query answering by knowledge intensive reformulation. But the problem of how to learn required semantic rules has no...
137
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AIMSA
2006
Springer
15 years 5 months ago
2006
Springer
Although speech and language processing techniques achieved a relative maturity during the last decade, designing a spoken dialogue system is still a tailoring task because of the ...
114
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TC
1998
15 years 3 months ago
1998
Data integrity policies often require that quality and integrity metadata be generated and communicated to potential users. However, in data warehouses, federations, and other mul...
ICDE
2010
IEEE
15 years 8 months ago
2010
IEEE
— Information extraction systems are traditionally implemented as a pipeline of special-purpose processing modules. A major drawback of such an approach is that whenever a new ex...