805 search results - page 2 / 161 » Semantic Modeling of Places using Objects |
GC
2004
Springer
13 years 10 months ago
2004
Springer
In this paper an extension of a behavioural subset of UML statecharts for mobile computations is proposed. We study collections of UML objects whose behaviour is given by statechar...
SAC
2008
ACM
13 years 4 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...
SAC
2008
ACM
13 years 4 months ago
2008
ACM
Because of the large amount of trajectory data produced by mobile devices, there is an increasing need for mechanisms to extract knowledge from this data. Most existing works have...
SIGGRAPH
1995
ACM
13 years 8 months ago
1995
ACM
We present a surface representation and a set of algorithms that allow interactive placement of curved parametric objects without interpenetration. Using these algorithms, a model...
COSIT
2009
Springer
13 years 10 months ago
2009
Springer
Named urban neighborhoods (localities) are often examples of vague place extents. These are compared with current knowledge of vagueness in concepts and categories within semantic ...