756 search results - page 60 / 152 » Using topology for spatial reasoning |
185
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GIS
2004
ACM
15 years 10 months ago
2004
ACM
Sensor networks are unattended deeply distributed systems whose schema can be conceptualized using the relational model. Aggregation queries on the data sampled at each ode are th...
GIS
2010
ACM
14 years 8 months ago
2010
ACM
Recently, a wide range of applications like hurricane research, fire management, navigation systems, and transportation, to name only a few, has shown increasing interest in mana...
CBMS
2007
IEEE
15 years 4 months ago
2007
IEEE
We describe a 3D+T active surface model for segmentation and tracking of the left ventricular endocardium within 3D MRI sequences of the cardiac cycle. In order to perform segment...
PERCOM
2008
ACM
15 years 4 months ago
2008
ACM
In this paper we present a protocol for sensor applications that require periodic collection of raw data reports from the entire network in a timely manner. We formulate the probl...
156
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GIS
2009
ACM
15 years 11 months ago
2009
ACM
Modern geographic databases can contain a large volume of data that need to be distributed to subscribed customers. The data can be modeled as a cube, where typical dimensions inc...