26 search results - page 3 / 6 » Moving Objects: Logical Relationships and Queries |
MDM
2004
Springer
15 years 2 months ago
2004
Springer
We consider in this paper how to leverage heterogeneous mobile computing capability for efficient processing of real-time range-monitoring queries. In our environment, each mobil...
114
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ECEASST
2008
14 years 9 months ago
2008
The OCL (Object Constraint Language) as part of the UML (Unified Modeling Language) is a rich language with different collection kinds (sets, multi-sets, sequences) and a large var...
PODS
2005
ACM
15 years 9 months ago
2005
ACM
Abstract. We present a semantics and answer set programs for relational peer data exchange systems. When a peer answers a query, it exchanges data with other peers in order to supp...
MOBIDE
1999
ACM
15 years 1 months ago
1999
ACM
In this article we introduce a new conception of three-dimensional DataSpace, which is physical space enhanced by connectivity to the network. DataSpace is addressed geographicall...
86
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KR
1998
Springer
15 years 1 months ago
1998
Springer
This paper presents a method for reasoning about spatial objects and their qualitative spatial relationships. In contrast to existing work, which mainly focusses on reasoning abou...