671 search results - page 30 / 135 » Spatial Reasoning with a Hole |
GIS
1999
ACM
13 years 12 months ago
1999
ACM
Spatial indexes, such as the PMR quadtree, are important in spatial databases for efficient execution of queries involving spatial constraints, especially when the queries involv...
FLAIRS
2008
13 years 10 months ago
2008
Typical application fields of spatial and spatio-temporal representation formalisms and reasoning techniques include geographic information systems (GIS), mobile assistance system...
ICTAC
2004
Springer
14 years 1 months ago
2004
Springer
We present a spatial and temporal logic based on Duration Calculus for the specification and verification of mobile real-time systems. We demonstrate the use of the formalism and...
GIS
2007
ACM
14 years 8 months ago
2007
ACM
The development of areas such as remote and airborne sensing, location based services, and geosensor networks enables the collection of large volumes of spatial data. These datase...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
Multi-dimensional spatial data are obtained when a number of data acquisition devices are deployed at different locations to measure a certain set of attributes of the study subje...