1053 search results - page 24 / 211 » Hierarchies and levels of reality |
IJNSEC
2007
14 years 11 months ago
2007
In a hierarchical structure, a user in a security class has access to information items of another class if and only if the former class is a predecessor of latter. Based upon cry...
JSYML
2007
14 years 11 months ago
2007
We observe that the W∗ -hierarchy, a variant (introduced by Downey, Fellows, and Taylor [8]) of the better known W-hierarchy, coincides with the W-hierarchy, though not level wi...
JCST
2008
14 years 11 months ago
2008
A cellular model based on the Incrementally Modular Abstraction Hierarchy (IMAH) is a novel model that can represent the architecture of and changes in cyberworlds, preserving inva...
CVPR
2010
IEEE
15 years 6 months ago
2010
IEEE
We propose a data-driven, hierarchical approach for the analysis of human actions in visual scenes. In particular, we focus on the task of in-house assisted living. In such scenar...
VISUALIZATION
1999
IEEE
15 years 3 months ago
1999
IEEE
We present a method for the hierarchical representation of vector fields. Our approach is based on iterative refinement using clustering and principal component analysis. The inpu...