2674 search results - page 22 / 535 » Data Models and Query Languages for Spatial Databases |
JCSS
2000
13 years 7 months ago
2000
The paper investigates the use of topological annotations (called topological invariants) to answer topological queries in spatial databases. The focus is on the translation of to...
GIS
2006
ACM
14 years 8 months ago
2006
ACM
Location information gathered from a variety of sources in the form of sensor data, video streams, human observations, and so on, is often imprecise and uncertain and needs to be ...
DEXA
2004
Springer
14 years 28 days ago
2004
Springer
Topological predicates between spatial objects have always been a main area of research on spatial data handling, reasoning, and query languages. The focus of research has definit...
GIS
2008
ACM
13 years 8 months ago
2008
ACM
In this paper we study in-network query processing in disconnected mobile environments, where both ad-hoc communication and infrastructure communication are available. Depending o...
ICCSA
2009
Springer
14 years 2 months ago
2009
Springer
Data aggregation in Geographic Information Systems (GIS) is a desirable feature, spatial data are integrated in OLAP engines for this purpose. However, the development and operatio...