821 search results - page 27 / 165 » Spatial data infrastructures as complex adaptive systems |
ICPADS
2005
IEEE
14 years 2 months ago
2005
IEEE
Data warehouses store large volumes of data according to a multidimensional model with dimensions representing different axes of analysis. OLAP systems (OnLine Analytical Processi...
PADS
2005
ACM
14 years 2 months ago
2005
ACM
Abstract— Traditionally Interest Management (IM) in distributed environments has been performed through a ‘top-down’ expression of interest patterns in the model. For many mo...
PERVASIVE
2006
Springer
13 years 8 months ago
2006
Springer
Pervasive applications rely on data captured from the physical world through sensor devices. Data provided by these devices, however, tend to be unreliable. The data must, therefor...
IPSN
2007
Springer
14 years 2 months ago
2007
Springer
We consider the problem of approximating a family of isocontours in a sensor field with a topologically-equivalent family of simple polygons. Our algorithm is simple and distribu...
ICASSP
2008
IEEE
14 years 3 months ago
2008
IEEE
Adaptive modulation scheme has been widely used in multipleinput multiple-output (MIMO) systems to enhance spectral efficiency while maintaining bit-error rate (BER) under a targ...