1422 search results - page 104 / 285 » Hierarchical Spatial Data Structures |
VCIP
2003
13 years 10 months ago
2003
This paper describes the development of a layered structure of a multi-resolutional scalable video codec based on the Color Set Partitioning in Hierarchical Trees (CSPIHT) scheme....
DASFAA
2003
IEEE
14 years 2 months ago
2003
IEEE
Modern database applications including computeraided design (CAD), medical imaging, or molecular biology impose new requirements on spatial query processing. Particular problems a...
CVPR
2010
IEEE
14 years 5 months ago
2010
IEEE
Time-varying spatial patterns are common, but few computational tools exist for discovering and tracking multiple, sometimes overlapping, spatial structures of targets. We propose...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
Spatial database operations are typically performed in two steps. In the filtering step, indexes and the minimum bounding rectangles (MBRs) of the objects are used to quickly dete...
ESWA
2008
2008
Web mining based on Growing Hierarchical Self-Organizing Maps: Analysis of a real citizen web portal
13 years 9 months ago
This work is focused on the usage analysis of a citizen web portal, Infoville XXI (http://www.infoville.es) by means of Self-Organizing Maps (SOM). In this paper, a variant of the...