654 search results - page 59 / 131 » Complexity of Answering Queries Using Materialized Views |
154
Voted
ATAL
2008
Springer
15 years 5 months ago
2008
Springer
In order to obtain semantic interoperability in open MultiAgent Systems, agents need to agree on the basis of different ontologies. In this paper we formally define mapping as cor...
147
Voted
VLDB
1999
ACM
15 years 7 months ago
1999
ACM
Electronic commerce is emerging as a major Websupported application. In this paper we argue that database technology can, and should, provide the backbone for a wide range of such...
136
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SIGMOD
2004
ACM
16 years 3 months ago
2004
ACM
We define a framework for static optimization of sliding window conjunctive queries over infinite streams. When computational resources are sufficient, we propose that the goal of...
173
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AMSTERDAM
2009
15 years 1 months ago
2009
Abstract. Pratt and Third's syllogistic fragments of English can be used to capture, in addition to syllogistic reasoning, many other kinds of common sense reasoning, and, in ...
146
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EDBT
2011
ACM
14 years 6 months ago
2011
ACM
A question that database administrators (DBAs) routinely need to answer is how long a batch query workload will take to complete. This question arises, for example, while planning...