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VISSYM
2004
15 years 5 months ago
Accuracy Evaluation of Different Centerline Approximations of Blood Vessels
Accurate determination of the vessel axis is a prerequisite for automated visualization and quantification of artery diseases. This paper presents an evaluation of different metho...
Alexandra La Cruz
CORR
2010
Springer
111views Education» more  CORR 2010»
15 years 4 months ago
Submodular Maximization by Simulated Annealing
We consider the problem of maximizing a nonnegative (possibly non-monotone) submodular set function with or without constraints. Feige et al. [9] showed a 2/5-approximation for th...
Shayan Oveis Gharan, Jan Vondrák
CCCG
2008
15 years 6 months ago
The Embroidery Problem
We consider the problem of embroidering a design pattern, given by a graph G, using a single minimum length thread. We give an exact polynomial-time algorithm for the case that G ...
Esther M. Arkin, George Hart, Joondong Kim, Irina ...
ECCC
2006
75views more  ECCC 2006»
15 years 4 months ago
Note on MAX 2SAT
In this note we present an approximation algorithm for MAX 2SAT that given a (1 - ) satisfiable instance finds an assignment of variables satisfying a 1 - O( ) fraction of all co...
Moses Charikar, Konstantin Makarychev, Yury Makary...
TOG
2008
109views more  TOG 2008»
15 years 4 months ago
Geometric skinning with approximate dual quaternion blending
Skinning of skeletally deformable models is extensively used for real-time animation of characters, creatures and similar objects. The standard solution, linear blend skinning, ha...
Ladislav Kavan, Steven Collins, Jirí Z&aacu...