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90
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FOCS
1999
IEEE
15 years 4 months ago
Taking a Walk in a Planar Arrangement
We present a randomized algorithm for computing portions of an arrangement of n arcs in the plane, each pair of which intersect in at most t points. We use this algorithm to perfo...
Sariel Har-Peled
92
Voted
SSDBM
2000
IEEE
109views Database» more  SSDBM 2000»
15 years 4 months ago
Toward Spatial Joins for Polygons
Efficient evaluation of spatial join is an important issue in spatial databases. The traditional evaluation strategy is to perform a join of “minimum bounding rectangles” (mbr...
Hongjun Zhu, Jianwen Su, Oscar H. Ibarra
CP
2010
Springer
14 years 11 months ago
Exponential Propagation for Set Variables
Research on constraint propagation has primarily focused on designing polynomial-time propagators sometimes at the cost of a weaker filtering. Interestingly, the evolution of cons...
Justin Yip, Pascal Van Hentenryck
140
Voted
CGF
2011
14 years 4 months ago
Two-Level Grids for Ray Tracing on GPUs
We investigate the use of two-level nested grids as acceleration structure for ray tracing of dynamic scenes. We propose a massively parallel, sort-based construction algorithm an...
Javor Kalojanov, Markus Billeter, Philipp Slusalle...
IRI
2009
IEEE
15 years 7 months ago
Collaborative Schema Construction using Regular Sequence Types
In this paper we describe an approach to build XML schemas in a collaborative way. The approach is based on computing intersection between sequences of type terms built over const...
Jorge Coelho, Mário Florido, Temur Kutsia