1018 search results - page 148 / 204 » On the minimization of XPath queries |
120
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GIS
2010
ACM
14 years 10 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...
103
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MOBIHOC
2005
ACM
15 years 11 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...
PODS
2010
ACM
15 years 5 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...
CIKM
2006
Springer
15 years 3 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,...
206
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ICDE
2006
IEEE
16 years 1 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...