Results 91 to 100 of about 183 (174)

Subdifferentiation with symmetry

Given an objective function that is invariant under an action of a Lie group, we study how its subgradients relate to the orbits of the action. Our main finding is that they satisfy projection formulae analogous to those stemming from the Whitney and Verdier stratifications. If the function is definable in an o-minimal structure on the real field, then
openaire   +2 more sources

Convergence for nonconvex ADMM, with applications to CT imaging. [PDF]

J Mach Learn Res
Barber RF, Sidky EY.
europepmc   +1 more source

Convex optimization algorithms in medical image reconstruction-in the age of AI. [PDF]

Phys Med Biol, 2022
Xu J, Noo F.
europepmc   +1 more source

A sequential solution for anisotropic total variation image denoising with interval constraints. [PDF]

Phys Med Biol, 2017
Xu J, Noo F.
europepmc   +1 more source

Grouping pursuit through a regularization solution surface. [PDF]

J Am Stat Assoc, 2010
Shen X, Huang HC.
europepmc   +1 more source

Distributed Simultaneous Inference in Generalized Linear Models via Confidence Distribution. [PDF]

J Multivar Anal, 2020
Tang L, Zhou L, Song PX.
europepmc   +1 more source

New generalized variable stepsizes of the CQ algorithm for solving the split feasibility problem. [PDF]

J Inequal Appl, 2017
Wang P, Zhou J, Wang R, Chen J.
europepmc   +1 more source

Vector critical points and generalized quasi-efficient solutions in nonsmooth multi-objective programming. [PDF]

J Inequal Appl, 2017
Wang Z, Li R, Yu G.
europepmc   +1 more source

Isolated Calmness of Perturbation Mappings and Superlinear Convergence of Newton-Type Methods. [PDF]

J Optim Theory Appl
Benko M, Mehlitz P.
europepmc   +1 more source