1053 search results - page 19 / 211 » Hierarchies and levels of reality |
COCO
1989
Springer
13 years 11 months ago
1989
Springer
Kadin [6] showed that if the Polynomial Hierarchy (PH) has infinitely many levels, then for all k, PSAT[k] ⊂ PSAT[k+1]. This paper extends Kadin’s technique and shows that a p...
JDWM
2007
13 years 7 months ago
2007
Comprehensive data analysis has become indispensable in a variety of domains. OLAP (On-Line Analytical Processing) systems tend to perform poorly or even fail when applied to comp...
CGF
1998
13 years 7 months ago
1998
We introduce a new data structure in the form of a light hierarchy for efficiently ray-tracing scenes with many light sources. An octree is constructed with the point light sourc...
GBRPR
2007
Springer
14 years 1 months ago
2007
Springer
Segmentation algorithms based on an energy minimisation framework often depend on a scale parameter which balances a fit to data and a regularising term. Irregular pyramids are de...
SGP
2003
13 years 8 months ago
2003
We present “contact levels of detail” (CLOD), a novel concept for multiresolution collision detection. Given a polyhedral model, our algorithm automatically builds a “dual h...