194 search results - page 4 / 39 » Using Hierarchical Spatial Data Structures for Hierarchical ... |
MDM
2009
Springer
14 years 2 months ago
2009
Springer
Indoor spaces pose many challenges for spatial information systems, amongst them appropriate spatial communication. Compared to typical outdoor spaces, indoor spaces are clustered...
CGA
2006
13 years 7 months ago
2006
n explore and understand abstract information spaces as if they were real geographic spaces. According to the distance-similarity metaphor1 one of the most popular spatial metaphor...
SIGMOD
1998
ACM
13 years 12 months ago
1998
ACM
Two new spatial join operations, distance join and distance semijoin, are introduced where the join output is ordered by the distance betweenthe spatialattribute values ofthe join...
ICPR
2008
IEEE
14 years 2 months ago
2008
IEEE
This paper presents an approach for human activity recognition by representing the frames of the video sequence with the distribution of local motion features and their spatiotemp...
TVCG
2008
13 years 7 months ago
2008
Abstract-- Visual data comprise of multi-scale and inhomogeneous signals. In this paper, we exploit these characteristics and develop a compact data representation technique based ...