8763 search results - page 296 / 1753 » Querying Database Knowledge |
259
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ICDT
2009
ACM
16 years 7 months ago
2009
ACM
We study the problem of querying data sources that accept only a limited set of queries, such as sources accessible by Web services which can implement very large (potentially inf...
182
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
In decision support applications, the ability to provide fast approximate answers to aggregation queries is desirable. One commonly-used technique for approximate query answering ...
176
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...
168
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PODS
2002
ACM
16 years 6 months ago
2002
ACM
Decision support system users typically submit batches of range-sum queries simultaneously rather than issuing individual, unrelated queries. We propose a wavelet based technique ...
162
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SSDBM
2008
IEEE
16 years 1 months ago
2008
IEEE
Given a query tuple q, the dynamic skyline query retrieves the tuples that are not dynamically dominated by any other in the data set with respect to q. A tuple dynamically dominat...