321 search results - page 34 / 65 » A Topological Data Model for Spatial Databases |
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
Reverse skyline queries over uncertain databases have many important applications such as sensor data monitoring and business planning. Due to the existence of uncertainty in many...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
We demonstrate a web service and client application for querying and visualizing datasets defined over arbitrary topological grids. Such gridded datasets are produced by Earth sci...
SSDBM
2002
IEEE
14 years 17 days ago
2002
IEEE
The efficient management of interval data represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tree1 ), an effi...
ICPR
2000
IEEE
14 years 8 months ago
2000
IEEE
This paper proposes an approach to 2D gesture recognition that models each gesture as a Finite State Machine (FSM) in spatial-temporal space. The model construction works in a sem...
GIS
2006
ACM
14 years 8 months ago
2006
ACM
In the real world, lots of objects with changing position can be found. Some of them repeat the same movement several times, called periodic movements. Examples include airplanes,...