1018 search results - page 148 / 204 » On the minimization of XPath queries |
198
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GIS
2010
ACM
15 years 4 months ago
2010
ACM
In this paper we focus on the problem of continuously monitoring the set of Reverse k-Nearest Neighbors (RkNNs) of a query object in a moving object database using a client server...
162
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MOBIHOC
2005
ACM
16 years 5 months ago
2005
ACM
This paper proposes a location service to assist location-based routing protocols, realized through a novel Associativity-Based clustering protocol. The main goal of our scheme, w...
135
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PODS
2010
ACM
15 years 11 months ago
2010
ACM
A fundamental problem in data management is to draw a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With large, streamin...
140
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CIKM
2006
Springer
15 years 10 months ago
2006
Springer
This paper revisits the analysis of annotation propagation from source databases to views defined in terms of conjunctive (SPJ) queries. Given a source database D, an SPJ query Q,...
305
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ICDE
2006
IEEE
16 years 7 months ago
2006
IEEE
Wireless sensor networks are proving to be useful in a variety of settings. A core challenge in these networks is to minimize energy consumption. Prior database research has propo...