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GLOBECOM
2010
IEEE
13 years 5 months ago
Studying the Relationships between Spatial Structures of Wireless Networks and Population Densities
In this paper we show how to quantify dependency between the node distributions of wireless networks and the underlying population densities. Furthermore, we show that a quantitati...
Maria Michalopoulou, Janne Riihijärvi, Petri ...
DASFAA
2004
IEEE
124views Database» more  DASFAA 2004»
13 years 11 months ago
Polygon and Polyline Join Using Raster Filters
Processing spatial joins efficiently is crucial to rendering the spatial data analysis process feasible. As pointed out in many works, the exact intersection test of two spatial ob...
Rodrigo Salvador Monteiro, Leonardo Guerreiro Azev...
TOH
2010
97views more  TOH 2010»
13 years 5 months ago
A Frequency-Domain Analysis of Haptic Gratings
—The detectability and discriminability of virtual haptic gratings were analyzed in the frequency domain. Detection (Exp. 1) and discrimination (Exp. 2) thresholds for virtual ha...
Steven A. Cholewiak, Kwangtaek Kim, Hong Z. Tan, B...
GIS
2002
ACM
13 years 7 months ago
Opening the black box: interactive hierarchical clustering for multivariate spatial patterns
Clustering is one of the most important tasks for geographic knowledge discovery. However, existing clustering methods have two severe drawbacks for this purpose. First, spatial c...
Diansheng Guo, Donna Peuquet, Mark Gahegan