856 search results - page 153 / 172 » Location-based Spatial Queries |
ICDE
2000
IEEE
14 years 11 months ago
2000
IEEE
Although there has been much written about various information integration technologies, little has been said regarding how to combine these technologies together to build an enti...
GIS
2004
ACM
14 years 11 months ago
2004
ACM
In the geometric data model [6], spatio-temporal data are modelled as a finite collection of triangles that are transformed by time-dependent affinities. To facilitate querying an...
GIS
2006
ACM
14 years 11 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,...
VLDB
2004
ACM
14 years 10 months ago
2004
ACM
With the recent and continuing advances in areas such as wireless communications and positioning technologies, mobile, locationbased services are becoming possible. Such services ...
EWSN
2007
Springer
14 years 9 months ago
2007
Springer
Duty-cycling in wireless sensor networks (WSNs) has both beneficial effects on network lifetime and negative effects on application performance due to the inability of a sensor to ...