885 search results - page 123 / 177 » Hierarchical Structuring of Data on Manifolds |
CGF
2008
13 years 9 months ago
2008
In this paper we introduce the constrained tetrahedralization as a new acceleration structure for ray tracing. A constrained tetrahedralization of a scene is a tetrahedralization ...
ICDE
2001
IEEE
14 years 11 months ago
2001
IEEE
We describe efficient algorithms for accurately estimating the number of matches of a small node-labeled tree, i.e., a twig, in a large node-labeled tree, using a summary data str...
DOLAP
1999
ACM
14 years 1 months ago
1999
ACM
OLAP systems support data analysis through a multidimensional data model, according to which data facts are viewed as points in a space of application-related dimensions", or...
ICDE
2006
IEEE
14 years 3 months ago
2006
IEEE
Currently, only few XML data management systems support concurrent access to an XML document, and if they do, they typically apply variations of hierarchical locking to handle XML...
ICPIA
1992
14 years 1 months ago
1992
Abstract. Octrees o er a powerful means for representing and manipulating 3-D objects. This paper presents an implementation of octree manipulations using a new approach on a share...