2514 search results - page 239 / 503 » On the Computation of Approximations of Database Queries |
297
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GIS
2007
ACM
16 years 7 months ago
2007
ACM
Continuous spatial queries posted within an environment of moving objects produce as their results a time-varying set of objects. In the most ambitious case both queries and data ...
156
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CIDR
2007
15 years 8 months ago
2007
In this paper, we investigate the benefits and challenges of integrating history into a near-real-time monitoring system; and present a general purpose continuous monitoring engi...
162
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PODS
2007
ACM
16 years 6 months ago
2007
ACM
In [3], we introduced a framework for querying and updating probabilistic information over unordered labeled trees, the probabilistic tree model. The data model is based on trees ...
319
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Abstract-- When dealing with massive quantities of data, topk queries are a powerful technique for returning only the k most relevant tuples for inspection, based on a scoring func...
178
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ICDCSW
2005
IEEE
16 years 8 days ago
2005
IEEE
Publish/subscribe is emerging as an appropriate communication paradigm for large-scale, widely-distributed systems. In this paper, we describe our work on integrating active datab...