186 search results - page 32 / 38 » A Practical Approach to Hypothetical Database Queries |
WSDM
2009
ACM
15 years 7 months ago
2009
ACM
There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this...
112
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ASWC
2008
Springer
15 years 2 months ago
2008
Springer
Abstract. Ontology reasoning is an indispensable step to fully exploit the implicit semantics of Semantic Web data. The inherent distribution characteristic of the Semantic Web and...
130
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SIGMOD
2012
ACM
13 years 2 months ago
2012
ACM
We study the notion of regret ratio proposed in [19] to deal with multi-criteria decision making in database systems. The regret minimization query proposed in [19] was shown to h...
103
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ICDE
2009
IEEE
15 years 7 months ago
2009
IEEE
— We present SMART, a self-tuning, bandwidth-aware monitoring system that maximizes result precision of continuous aggregate queries over dynamic data streams. While prior approa...
SIGMOD
2001
ACM
16 years 15 days ago
2001
ACM
Approximating the joint data distribution of a multi-dimensional data set through a compact and accurate histogram synopsis is a fundamental problem arising in numerous practical ...