Sciweavers

309 search results - page 48 / 62
» Smooth Optimization with Approximate Gradient
Sort
View
MICCAI
2008
Springer
14 years 8 months ago
Tag Separation in Cardiac Tagged MRI
In this paper we introduce a tag separation method for better cardiac boundary segmentation and tag tracking. Our approach is based on two observations in the cardiac tagged MR ima...
Junzhou Huang, Zhen Qian, Xiaolei Huang, Dimitr...
MOR
2010
120views more  MOR 2010»
13 years 6 months ago
Proximal Alternating Minimization and Projection Methods for Nonconvex Problems: An Approach Based on the Kurdyka-Lojasiewicz In
We study the convergence properties of an alternating proximal minimization algorithm for nonconvex structured functions of the type: L(x, y) = f(x)+Q(x, y)+g(y), where f : Rn → ...
Hedy Attouch, Jérôme Bolte, Patrick R...
STOC
2009
ACM
145views Algorithms» more  STOC 2009»
14 years 8 months ago
Intrinsic robustness of the price of anarchy
The price of anarchy (POA) is a worst-case measure of the inefficiency of selfish behavior, defined as the ratio of the objective function value of a worst Nash equilibrium of a g...
Tim Roughgarden
GECCO
2006
Springer
150views Optimization» more  GECCO 2006»
13 years 11 months ago
Nonlinear parametric regression in genetic programming
Genetic programming has been considered a promising approach for function approximation since it is possible to optimize both the functional form and the coefficients. However, it...
Yung-Keun Kwon, Sung-Soon Choi, Byung Ro Moon
ICASSP
2008
IEEE
14 years 2 months ago
Image processing by topological asymptotic analysis
The aim of this article is to recall the applications of the topological asymptotic expansion to many image processing problems. We briefly review the topological asymptotic analy...
Didier Auroux, Mohamed Masmoudi