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FUN
2007
Springer
80views Algorithms» more  FUN 2007»
15 years 1 months ago
The Traveling Beams Optical Solutions for Bounded NP-Complete Problems
Architectures for optical processors designed to solve bounded instances of NP-Complete problems are suggested. One approach mimics the traveling salesman by traveling beams that ...
Shlomi Dolev, Hen Fitoussi
CCCG
1993
14 years 11 months ago
The Floodlight Problem
Given three angles summing to 2, given n points in the plane and a tripartition k1 + k2 + k3 = n, we can tripartition the plane into three wedges of the given angles so that the ...
Prosenjit Bose, Leonidas J. Guibas, Anna Lubiw, Ma...
71
Voted
ICC
2007
IEEE
105views Communications» more  ICC 2007»
15 years 4 months ago
Addressing the Dynamic Range Problem in Cognitive Radios
—The discrepancy between perceived spectrum shortage from the FCC allocation map and the actual abundance of available spectrum is a motivation for Cognitive Radios, which locate...
Jing Yang, Robert W. Brodersen, David Tse
52
Voted
SIAMMA
2010
66views more  SIAMMA 2010»
14 years 4 months ago
On a Nonlocal Reaction-Diffusion Problem Arising from the Modeling of Phytoplankton Growth
In this paper we analyze a nonlocal reaction-diffusion model which arises from the modeling of competition of phytoplankton species with incomplete mixing in a water column. The no...
Yihong Du, Sze-Bi Hsu
COMPGEOM
2007
ACM
14 years 11 months ago
Between umbra and penumbra
Computing shadow boundaries is a difficult problem in the case of non-point light sources. A point is in the umbra if it does not see any part of any light source; it is in full l...
Julien Demouth, Olivier Devillers, Hazel Everett, ...