Sciweavers

GIS
2007
ACM
16 years 7 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
16 years 7 months ago
STEWARD: architecture of a spatio-textual search engine
Michael D. Lieberman, Hanan Samet, Jagan Sankarana...
GIS
2007
ACM
16 years 7 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
16 years 7 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....
GIS
2007
ACM
16 years 7 months ago
Proximity queries in large traffic networks
In this paper, we present an original network graph embedding to speed-up distance-range and k-nearest neighbor queries in (weighted) graphs. Our approach implements the paradigm ...
Hans-Peter Kriegel, Matthias Renz, Peer Kröge...
GIS
2007
ACM
16 years 7 months ago
Partition-based lazy updates for continuous queries over moving objects
Continuous spatial queries posted within an environment of moving objects produce as their results a time-varying set of objects. In the most ambitious case both queries and data ...
Yu-Ling Hsueh, Roger Zimmermann, Haojun Wang, Wei-...
GIS
2007
ACM
16 years 7 months ago
Optimal route selection with route planners: results of a desktop usability study
Route planners request user input about preferred route characteristics in order to provide the user with the optimal route. Although navigators have a general idea about what con...
Hartwig H. Hochmair
GIS
2007
ACM
16 years 7 months ago
High-level web service for 3D building information visualization and analysis
This paper presents an approach to visualize and analyze 3D building information models within virtual 3D city models. Building information models (BIMs) formalize and represent d...
Benjamin Hagedorn, Jürgen Döllner
GIS
2007
ACM
16 years 7 months ago
TerraStream: from elevation data to watershed hierarchies
We consider the problem of extracting a river network and a watershed hierarchy from a terrain given as a set of irregularly spaced points. We describe TerraStream, a "pipeli...
Andrew Danner, Thomas Mølhave, Ke Yi, Panka...
GIS
2007
ACM
16 years 7 months ago
Smugglers and border guards: the GeoStar project at RPI
We present the GeoStar project at RPI, which researches various terrain (i.e., elevation) representations and operations thereon. This work is motivated by the large amounts of hi...
W. Randolph Franklin, Metin Inanc, Zhongyi Xie, Da...