1422 search results - page 91 / 285 » Hierarchical Spatial Data Structures |
180
Voted
GIS
1995
ACM
15 years 9 months ago
1995
ACM
An algorithm is presented to answer window queries in a quadtree-based spatial database environment by retrieving the covering blocks in the underlying spatial database. It works ...
283
Voted
SAINT
2007
IEEE
16 years 13 days ago
2007
IEEE
To achieve a smart sensor network with Web-based sensor nodes such as Field Servers, we propose a hierarchical agent system that manages sensor nodes autonomously and flexibly, an...
168
Voted
WEBI
2007
Springer
16 years 8 days ago
2007
Springer
— We propose a hierarchical approach to document categorization that requires no pre-configuration and maps the semantic document space to a predefined taxonomy. The utilizatio...
173
Voted
ICPR
2008
IEEE
16 years 7 months ago
2008
IEEE
In this work we present a model that uses a Dirichlet Process (DP) with a dynamic spatial constraints to approximate a non-homogeneous hidden Markov model (NHMM). The coefficient ...
161
Voted
ICDIM
2009
IEEE
16 years 25 days ago
2009
IEEE
We propose the mqr-tree, a two-dimensional spatial access method that improves upon the 2DR-tree. The 2DRtree uses two-dimensional nodes so that the relationships between all obje...