548 search results - page 53 / 110 » Optimization of Convex Risk Functions |
SIAMIS
2011
13 years 5 months ago
2011
The convergence rate is analyzed for the sparse reconstruction by separable approximation (SpaRSA) algorithm for minimizing a sum f(x) + ψ(x), where f is smooth and ψ is convex, ...
MP
1998
13 years 10 months ago
1998
We define the base polytope B(P, g) of a partially ordered set P and a supermodular function g on the ideals ofP as the convex hull of the incidence vectors of all linear extensio...
ICPR
2008
IEEE
14 years 11 months ago
2008
IEEE
In this paper we propose a novel prior-based variational object segmentation method in a global minimization framework which unifies image segmentation and image denoising. The id...
ICML
2006
IEEE
14 years 11 months ago
2006
IEEE
An intuitive approach to utilizing unlabeled data in kernel-based classification algorithms is to simply treat unknown labels as additional optimization variables. For marginbased...
CORR
2011
Springer
13 years 5 months ago
2011
Springer
The paper describes a general glance to the use of element exchange techniques for optimization over permutations. A multi-level description of problems is proposed which is a fund...