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GIS
2007
ACM
15 years 1 months ago
Cluster By: a new sql extension for spatial data aggregation
The development of areas such as remote and airborne sensing, location based services, and geosensor networks enables the collection of large volumes of spatial data. These datase...
Chengyang Zhang, Yan Huang
GIS
2007
ACM
15 years 1 months ago
Dynamics-aware similarity of moving objects trajectories
This work addresses the problem of obtaining the degree of similarity between trajectories of moving objects. Typically, a Moving Objects Database (MOD) contains sequences of (loc...
Goce Trajcevski, Hui Ding, Peter Scheuermann, Robe...
GIS
2007
ACM
15 years 1 months ago
Topological maps from signals
We discuss the task of reconstructing the topological map of an environment based on the sequences of locations visited by a mobile agent ? this occurs in systems neuroscience, wh...
Yu. Dabaghian, Anthony G. Cohn, L. Frank
GIS
2007
ACM
15 years 1 months ago
Geometric algorithms for clearance based optimal path computation
Priyadarshi Bhattacharya, Marina L. Gavrilova
GIS
2007
ACM
15 years 1 months ago
TS2-tree - an efficient similarity based organization for trajectory data
The increasingly popular GPS technology and the growing amount of trajectory data it generates create the need for developing applications that efficiently store and query traject...
Petko Bakalov, Eamonn J. Keogh, Vassilis J. Tsotra...
GIS
2007
ACM
15 years 1 months ago
A model for enriching trajectories with semantic geographical information
The collection of moving object data is becoming more and more common, and therefore there is an increasing need for the efficient analysis and knowledge extraction of these data ...
Alejandro A. Vaisman, Bart Kuijpers, Bart Moelans,...
GIS
2007
ACM
15 years 1 months ago
Spatial and temporal analysis of pedestrian egress behavior and efficiency
This research reports on exploring analytical methodologies for spatio-temporal data of pedestrian egress dynamics in a crowded environment. The research objective is to spatially...
Atsushi Nara, Paul M. Torrens
GIS
2007
ACM
15 years 1 months ago
STEWARD: architecture of a spatio-textual search engine
Michael D. Lieberman, Hanan Samet, Jagan Sankarana...
GIS
2007
ACM
15 years 1 months ago
Comparing global and interest point descriptors for similarity retrieval in remote sensed imagery
We investigate the application of a new category of low-level image descriptors termed interest points to remote sensed image analysis. In particular, we compare how scale and rot...
Shawn Newsam, Yang Yang
GIS
2007
ACM
15 years 1 months ago
Approximate order-k Voronoi cells over positional streams
Handling streams of positional updates from numerous moving objects has become a challenging task for many monitoring applications. Several algorithms have been recently proposed ...
Kostas Patroumpas, Theofanis Minogiannis, Timos K....