261 search results - page 13 / 53 » Supporting uncertainty in moving objects in network database... |
SAC
2008
ACM
14 years 11 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
100
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DASFAA
2009
IEEE
15 years 6 months ago
2009
IEEE
Abstract. Continuous spatial queries retrieve a set of time-varying objects continuously during a given period of time. However, monitoring moving objects to maintain the correctne...
183
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VLDB
2008
ACM
15 years 12 months ago
2008
ACM
Abstract Existing spatiotemporal indexes suffer from either large update cost or poor query performance, except for the Bx -tree (the state-of-the-art), which consists of multiple ...
122
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DEBU
2002
14 years 11 months ago
2002
Spatio-temporal databases store information about the positions of individual objects over time. In many applications however, such as traffic supervision or mobile communication ...
103
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CIKM
2009
Springer
15 years 4 months ago
2009
Springer
Indoor spaces accommodate large populations of individuals. The continuous range monitoring of such objects can be used as a foundation for a wide variety of applications, e.g., s...