2217 search results - page 72 / 444 » Rank-aware Query Optimization |
203
Voted
SIGMOD
2006
ACM
16 years 2 months ago
2006
ACM
This paper presents a principled framework for efficient processing of ad-hoc top-k (ranking) aggregate queries, which provide the k groups with the highest aggregates as results....
221
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SIGMOD
2005
ACM
16 years 2 months ago
2005
ACM
Although integrity constraints have long been used to maintain data consistency, there are situations in which they may not be enforced or satisfied. In this paper, we present Con...
113
Voted
DEBU
2000
15 years 2 months ago
2000
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...
186
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ICDE
1998
IEEE
16 years 3 months ago
1998
IEEE
Algebraic transformation and optimization techniques have been the method of choice in relational query execution, but applying them in OODBMS is difficult due to the complexity o...
117
Voted
DMSN
2009
ACM
15 years 9 months ago
2009
ACM
Generating a good execution plan for a declarative query has long been a central problem in data management research. With the rise in interest in wireless sensor networks (WSNs) ...