2514 search results - page 254 / 503 » On the Computation of Approximations of Database Queries |
270
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SIGMOD
2009
ACM
16 years 7 months ago
2009
ACM
Uncertain data arises in a number of domains, including data integration and sensor networks. Top-k queries that rank results according to some user-defined score are an important...
312
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ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
In this paper we present algorithms for building and maintaining efficient collection trees that provide the conduit to disseminate data required for processing monitoring queries...
130
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ICDE
2010
IEEE
16 years 6 months ago
2010
IEEE
Abstract--Amazon, Google, and IBM now sell cloud computing services. We consider the setting of a for-profit business selling data stream monitoring/management services and we inve...
189
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SSDBM
2008
IEEE
16 years 1 months ago
2008
IEEE
Abstract. Existing approaches to the management of streaming positional updates generally assume that all active user requests have equal importance, ignoring the possibility of an...
182
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DASFAA
2010
IEEE
15 years 11 months ago
2010
IEEE
Given a set of query points, a dynamic skyline query reports all data points that are not dominated by other data points according to the distances between data points and query po...