SIAMSC
2010
13 years 2 months ago
2010
Abstract. In this paper we improve traditional steepest descent methods for the direct minimization of the Gross-Pitaevskii (GP) energy with rotation at two levels. We first defi...
PAMI
2002
13 years 4 months ago
2002
JCC
2002
13 years 4 months ago
2002
: The predictor-corrector method for following a reduced gradient (RGF) to determine saddle points [Quapp, W. et al., J Comput Chem 1998, 19, 1087] is further accelerated by a modi...
SIAMJO
2000
13 years 4 months ago
2000
We consider the gradient method xt+1 = xt + t(st + wt), where st is a descent direction of a function f : n and wt is a deterministic or stochastic error. We assume that f is Lip...
PAMI
2000
13 years 4 months ago
2000
I consider the problem of finding all the modes of a mixture of multivariate Gaussian distributions, which has applications in clustering and regression. I derive exact formulas f...
PAMI
2000
13 years 4 months ago
2000
TCAD
2008
13 years 4 months ago
2008
Abstract--Recent analytical global placers use density constraints to approximate nonoverlap constraints, and these show very successful results. This paper unifies a wide range of...
IJCV
2007
13 years 4 months ago
2007
This paper tackles an important aspect of the variational problem underlying active contours: optimization by gradient flows. Classically, the definition of a gradient depends d...
SIAMJO
2008
13 years 4 months ago
2008
A new active set algorithm for minimizing quadratic functions with separable convex constraints is proposed by combining the conjugate gradient method with the projected gradient. ...
MP
2006
13 years 4 months ago
2006
A method is proposed for finding the global minimum of a multivariate polynomial via sum of squares (SOS) relaxation over its gradient variety. That variety consists of all points ...