Title
Nonconvex nonsmooth optimization via convex-nonconvex majorization-minimization.
Abstract
The class of majorization---minimization algorithms is based on the principle of successively minimizing upper bounds of the objective function. Each upper bound, or surrogate function, is locally tight at the current estimate, and each minimization step decreases the value of the objective function. We present a majorization---minimization approach based on a novel convex---nonconvex upper bounding strategy for the solution of a certain class of nonconvex nonsmooth optimization problems. We propose an efficient algorithm for minimizing the (convex) surrogate function based on the alternating direction method of multipliers. A preliminary convergence analysis for the proposed approach is provided. Numerical experiments show the effectiveness of the proposed method for the solution of nonconvex nonsmooth minimization problems.
Year
DOI
Venue
2017
10.1007/s00211-016-0842-x
Numerische Mathematik
Keywords
Field
DocType
65K05 Mathematical programming, 65K10 Optimization and variational techniques, 90C26 Nonconvex programming,  global optimization, 49J52 Nonsmooth analysis
Convergence (routing),Mathematical optimization,Global optimization,Mathematical analysis,Upper and lower bounds,Regular polygon,Minification,Optimization problem,Mathematics,Majorization minimization,Bounding overwatch
Journal
Volume
Issue
ISSN
136
2
0945-3245
Citations 
PageRank 
References 
10
0.52
30
Authors
4
Name
Order
Citations
PageRank
Alessandro Lanza1557.16
Serena Morigi214220.57
Ivan W. Selesnick389884.93
Fiorella Sgallari421722.22