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» Algorithm Visualization in Teaching Spatial Data Algorithms
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GIS
2010
ACM
15 years 14 days ago
Automatic construction and multi-level visualization of semantic trajectories
With the prevalence of GPS-embedded mobile devices, enormous amounts of mobility data are being collected in the form of trajectory - a stream of (x,y,t) points. Such trajectories...
Zhixian Yan, Lazar Spremic, Dipanjan Chakraborty, ...
GIS
2007
ACM
16 years 3 months ago
Environmental scenario search and visualization
We have developed Environmental Scenario Search Engine (ESSE) for parallel data mining of a set of conditions inside distributed, very large databases from multiple environmental ...
Mikhail N. Zhizhin, Eric A. Kihn, Vassily Lyutsare...
GEOINFO
2004
15 years 3 months ago
Visualization of Geospatial Data by Component Planes and U-matrix
: This paper shows an application of two visualization algorithms of multivariate data, U-matrix and Component Planes, in a matter of exploratory analysis of geospatial data. These...
Marcos Aurélio Santos da Silva, Antôn...
IJCNN
2006
IEEE
15 years 8 months ago
Classifying Single-Trial ERPs from Visual and Frontal Cortex during Free Viewing
—Event-related potentials (ERPs) recorded at the scalp are indicators of brain activity associated with eventrelated information processing; hence they may be suitable for the as...
Akaysha C. Tang, Matthew T. Sutherland, Christophe...
VLDB
1994
ACM
137views Database» more  VLDB 1994»
15 years 6 months ago
Performance of Data-Parallel Spatial Operations
The performance of data-parallel algorithms for spatial operations using data-parallel variants of the bucket PMR quadtree, R-tree, and R+-tree spatial data structures is compared...
Erik G. Hoel, Hanan Samet